Table of Contents Section 1 – New and Featured Products

Table of Contents 

Section 1 – New and Featured Products 

CPU Supervisors, System Management, RTC and Timing Solution Products 

X1205/X1226/X1227/X1228/X1286/X1288—Real Time Clock Products with System Management . . . . . . . . . . . . 1-1 

X1208—Real Time Clock/Calendar with Battery Backup SRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3 

X1209—Real Time Clock/Calendar with Event/Time Stamp Detection & Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4 

X40010/X40011/X40014/X40015 and X40410/X40411/X40414/X40415 

Dual Supervisors with System Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5 

X40020/X40021 and X40420/X40421 

Dual Supervisor and Battery Backup with System Management. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7 

X40030/X40031/X40034/X40035 and X40430/X40431/X40434/X40435 

Triple Supervisors with System Management. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9 

X40626—Dual Supervisor with System Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11 

X45620—Dual Voltage Monitor Battery Switch and 256K EE Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12 

Power Management Products [Hotswap, Power Sequencing, Systems Management, Batteries] 

X3100/X3101—Battery Safety Management. Li-Ion / Li-Polymer: 3 and 4-cell or higher. . . . . . . . . . . . . . . . . . . . . 1-13 

X51694—Low Cost System Bus Accelerator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15 

X80000/X80001—-48V Hotswap and 0.9V to 5V Power Sequencing with 2-wire Interface . . . . . . . . . . . . . . . . . . 1-16 

X80010/ X80011/X80012/X80013—-48V Hotswap and 0.9V to 5V Power Sequencing . . . . . . . . . . . . . . . . . . . . 1-18 

X80070/X80071/X80072/X80073—-48V Hotswap with Gate Current Select and Integrated Voltage Regulator . . . 1-20 

X80140/X80130/X80120-Series 

Power Sequencers. 0.9V to 5V Supervisors with 500ms to 5sec Timers and Voltage Good Outputs . . . . . . . . . . . 1-21 

X80200-Series Power Sequencers Using Triple Charge Pumps for 0.9V to 5V Multi-voltage Sequencing. . . . . . . . 1-23 

Signal Conditioning/Calibration and Control Products (Non-volatile) 

X9110—Single 1024-tap Digital Pot, SPI I/F, +/- 5V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-24 

X9111—Single 1024-tap Digital Pot SPI I/F, 2.7V to 5.5V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-25 

X9118—1024-tap Digital Pot, 2-wire I/F, +/- 5V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-26 

X9119—1024-tap Digital Pot, 2-wire I/F, 2.7V to 5.5V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-27 

X9250—Quad 256-tap Digital Pot, SPI I/F, +/-5V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-28 

X9251—Quad 256-tap Digital Pot, SPI I/F, 2.7V to 5V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-29 

X9252—Quad 256-tap Digital Pot, 2-wire and Up/Down I/F, 2.7V to 5.5V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-30 

X9258—Quad 256-tap Digital Pot, 2-wire I/F, +/-5V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-31 

X9259—Quad 256-tap Digital Pot, 2-wire I/F, 2.7V to 5V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-32 

X9271—Single 256-tap Digital Pot, SPI I/F, 2.7V to 5.5V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-33 

X9279—Single 256-tap Digital Pot, 2-wire I/F, 2.7V to 5.5V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-34 

X9318—Single 100-tap Digital Pot, UP/DN I/F, 8V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-35 

X9319—Single 100-tap Digital Pot, UP/DN I/F, 10V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-36 

X93154—Single 32-tap Digital Pot, UP/DN I/F, 2.7V to 3.3V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-37 



X93254—Dual 32-tap Digital Pot, Ind UP/DN I/F, 2.7V to 3.3V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-40 



X9455—Dual Twin Wiper 256-tap Digital Pot, 2-wire and UP/DN I/F, 2.7V to 5.5V. . . . . . . . . . . . . . . . . . . . . . . . . 1-43 

X9460—Dual 32-tap (Audio) Log Taper Digital Pot, 2-wire I/F, 2.7V to 5.5V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-44 

XDCP Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-45 

X9470—RF PA Bias Controller 28V Input, 5V Output. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-50 

X9530—Temperature Compensated Laser Diode Controller. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-51 

X95310—Single 1028-tap Digital Pot, UP/DN I/F, 0-13V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-52 

X95311—Single 1028-tap Digital Pot, 2-wire I/F, 0-13V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-54 

X95840—Quad-256 Tap Digital Pot 2-wire I/F 2.7V-5.5V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-55 

X90100—32-tap Digital Controlled Capacitor, UP/DN I/F . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-56

X96010—Sensor Conditioner with Dual Look Up Table and DACs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-57 

X96011—Temperature Sensor with Look Up Table and DAC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-58 

X96012—Universal Sensor Conditioner with Dual Look Up Table and DACs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-59 

Voltage Reference Products 

X60002-12 & X60002-25 Precision 1.25V & 2.5V Low Supply Voltage FGA References . . . . . . . . . . . . . . . . . . . 1-60 

X60007-12, X60007-25 Precision 1.25V & 2.5V Low Supply Voltage FGA References . . . . . . . . . . . . . . . . . . . . 1-61 

X60008A—50 1ppm/°C, 5.0V, Ultra-stable Precision Low Power FGA Voltage Reference . . . . . . . . . . . . . . . . . . 1-62 

X60008B/C/D/E—25 Precision 2.5V FGA References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-63 

X60008B/C/D/E—41 Precision 4.096V FGA References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-64 

X60003B/C/D—50 Precision 5.0V SOT23 FGA Voltage References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-65 

X60008B/C/D/E—50 Precision 5.0V FGA References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-66 

X60250—Programmable Voltage References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-67 

X64000—Voltage Reference with Programmable Output (0V to 5.5V) 

Plus Programmable Temperature Compensation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-68 

Data Conversion Products 

X79000—Flex DAC Family 12 Bit DAC and Memory with Selectable Voltage Reference. . . . . . . . . . . . . . . . . . . . . 1-69 

Signal Processing Products 

Upcoming Products (Call Factory for Updates) 

Section 2 – Product Family Selection Trees and Tables 

Digital Potentiometers and Capacitors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1 

CPU Supervisors and System Management. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3 

Real Time Clocks and Timing Supervisors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9 

Bias and Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12 

Power and Battery Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14 

Precision FGA Voltage References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-16 

Selector Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17 

Section 3 – Design Tools 

Design Tools Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1 

X79000 Nonvolatile DAC Evaluation Board. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2 

Bias and Control XDCP and Voltage Reference Evaluation Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3 

XDCP “Digital Screwdriver” Evaluation Platform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4 

XDCP X9259 Evaluation Board. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4 




System Management / CPU Supervisor Evaluation Board (X40421/X40435) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7 

Real Time Clock Evaluation Board (X1227/X1288) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8 

Hotswap and Power Sequencing Evaluation Board (X80000). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9 

3-cell Prismatic Li-Ion Battery Pack Evaluation Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10 

Power Sequencing, X80200 Evaluation Kit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10 

Time Sequencing & Voltage Monitors, X80140 Evaluation Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11 

-48V Hotswap, X80070 Evaluation Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11 

X90100 Evaluation Board Tool Kit and Software. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12 

X9601x Evaluation Board Tool Kit and Software. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12 

Digital Potentiometer Selector Tool . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13 

System Management Selector Tool . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13 

Section 4 – Applications 

Application Notes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1 

Digital Potentiometer Primer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2 

AN177 Voltage Reference Application and Design Note . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-23

Product Family Selection 

Trees and Tables Design Tools Applications 

New & Featured Products 

Section 1 

New & Featured Products


® 

X1205, X1226, X1227, X1228, X1286, X1288 Real Time Clock with Systems Management 

Product Highlights 

Real time clock integrated with power-on-reset, low voltage sense, 

watchdog timer, battery switch, EEPROM and oscillator compensation 

and trim cap. 

Key Features 

Keeps time/date – like a watch plus calendar 

• Sub-second resolution 

• 100-year calendar 

• Updates for leap year 

Powerful alarm architecture 

• Two independent alarms (EEPROM) 

• Alarms can be set for second, minute, hour, data, month 

and day of the week 

• Makes alarm reports 

Selectable timeout watchdog timer (WDT) 

• Four field selectable time intervals of, 0.25s, 0.75s, 1.75s 

• Watchdog timer can be disabled for system debug 

Benefits 

• Simple, easy to use – reduces design time 

• Software development is easy 

• Alarms act as interrupts 

• Sets repetitive/recursive alarms 

• Restarts system if system locks up 

• System controller can be put in sleep mode and 

WDT can periodically wake-up system 

• Resets critical system peripherals 

Description 

The Real Time Clock Family contains clock/calendar, two polled 

alarms, oscillator compensation, and battery backup switch. See 

the table for options. 

The oscillator uses an external, low-cost 32.768kHz crystal. All 

compensation and trim components are integrated on the chip. 

This eliminates several external discrete components and a 

trim capacitor, saving board area and component cost. 

The Real Time Clock keeps track of time with separate registers 

for Hours, Minutes, and Seconds. The Calendar has separate 

registers for Date, Month, Year and Day-of-week. The calendar 

is correct through 2099, with automatic leap year correction. 

The powerful Dual Alarms can be set to any Clock/Calendar 

value for a match. For instance, every minute, every Tuesday, 

or 5:23 AM on March 21. The alarms can be polled in the Status 

Register or provide a hardware interrupt (IRQ Pin). There is a 

repeat mode for the alarms allowing a periodic interrupt. 

The device offers a backup power input pin. This V BACK pin 

allows the device to be backed up by battery or Super Cap. The 

device is fully operational from 2.7 to 5.5 volts and the 

clock/calendar portion of the device remains fully operational 

down to 1.8 volts (Standby Mode). 

See Product Family Tree 

on page 2-9 


X1288 Block Diagram 

32kHz or 

32.768kHz 

PHZ IRQ 

X1 

X2 

Select 

Oscillator 

Frequency 

Divider 

1Hz 

Timer 

Calendar 

Logic 

Timer 

Keeping 

Registers 

(SRAM) 

Battery 

Switch 

Circuitry 

V CC 

V BACK 

SCL 

SDA 

Serial 

Interface 

Decoder 

Control 

Decode 

Logic 

8 

Control 

Registers 

(EEPROM) 

Status 

Registers 

(SRAM) 

Alarm 

Mask 

Compare 

Alarm Regs 

(EEPROM) 

Oscillator 

Compensation 

RESET 

Watchdog 

Timer 

Low Voltage 

Reset 

256K 

EEPROM 

Array 

www.xicor.com 

1–1


® 

X1205, X1226, X1227, X1228, X1286, X1288 Real Time Clock with Systems Management 

Real Time Clock PLUS Family — 2-wire Bus Interface Products 

Package V cc V batt Operating Range 2 Alarms Power-ON Watchdog Clock On-chip OSC Temp Batt Switch or IRQ 

EEPROM 

0 to 70 -40 to 85 Reset Timer Freq Out Compensation Super Cap Output 0K 4K 16K 64K 256K 

X1205 RTC Plus, 8-TSSOP, 2.7 to 5.5 1.8 to 5.5 X X Y N N N Y Y Y X 

No Memory 8-SOIC 

X1226 RTC Plus, 8-SOIC, 2.7 to 5.5 1.8 to 5.5 X X Y N N Y Y Y Y X 

4K EEPROM 8-TSSOP 

X1227 RTC Plus, 8-SOIC, 2.7 to 5.5 1.8 to 5.5 X X Y Y Y N Y Y N X 


X1228 RTC Plus, 14-SOIC, 2.7 to 5.5 1.8 to 5.5 X X Y Y Y Y Y Y Y X 


X1286 RTC Plus, 14-TSSOP 2.7 to 5.5 1.8 to 5.5 X X Y N N Y Y Y Y X 

256K EEPROM 

X1288 RTC Plus, 16-SOIC, 2.7 to 5.5 1.8 to 5.5 X X Y Y Y Y Y Y Y X 


1–2 

www.xicor.com

® 


X1208 Real Time Clock/Calendar with Battery Backup SRAM 


• Real Time Clock with Alarms 

• Low Power, Battery backup 

• Low Cost, Same pin out as ST M41T11, Maxim DS1672 

Key Features 

• Real Time Clock/Calendar 

• Selectable Dividers for Various Frequency Output 

• 1 Polled and Periodic Alarm/IRQ 

• Battery Switch or Super Cap Input 

• Battery Backup SRAM Timing and Alarm Registers 

• Power Failure Detection 

• Oscillator Compensation on chip 

• 2 Bytes General Purpose SRAM 

• 2-Wire Interface 

— 400kHz data transfer rate 

• Low Power CMOS 

— < 1µA Operating Current 

Benefits 

• Ideal for low cost, general purpose timing applications 

• Low Power operation 

• Advanced Battery to V CC Switch Mechanism 

Description 

The X1208 device is a low power Real Time Clock with crystal 

and timing compensation, clock/calendar, one polled alarm, 

frequency output option, power indicator, periodic and polled 

alarms and battery backup switch. 

The powerful alarm can be set to any Clock/Calendar value for 

a match. For instance, every minute, every Tuesday, or 5:23 AM 

on March 21. The alarm can be polled in the Status Register or 

provide a hardware interrupt (IRQ Pin). There is a repeat mode 

for the alarms allowing a periodic interrupt of 60-seconds, 

1-hour, 1-day, once-a-week, etc. 

The device offers a backup power input pin. This VBAT pin 


entire X1208 device is fully operational from 2.0V to 5.5 volts 

and the clock/calendar portion of the X1208 device remains 

fully operational in low power modes (Standby Mode). 

Pin Configuration 

X1208 

8-Pin MSOP, SOIC 

X1 

X2 

1 

2 

8 

7 

V BAT 3 

V SS 4 

6 

5 

V CC 

IRQ / FOUT 

SCL 

SDA 

8-lead FCP 

Bump 

Chip 

Scale 

tbd 


Available: 2nd Half of 2004 

Block Diagram 

X1 

OSC 

Compensation 

X2 32.768kHz Alarm Regs 

V BAT 

V CC 

V SS 

SCL 

SDA 

V CC / Batt 

Switch 

Serial 

Interface 

Decoder 

Control 

Decode 

Logic 

Control 

Registers 

(SRAM*) 

Oscillator 

Frequency 

Divider 

Status 

Registers 

(SRAM) 

Timer 

Calendar 

Logic 

Alarm 

General Purpose 

SRAM 

Mask 

Timer 

Keeping 

Registers 

(SRAM*) 

Compare 

(SRAM*) 

IRQ / FOUT 

Interrupt 

Enable 

Alarm 

*battery backup SRAM 

www.xicor.com 


® 


X1209 Real Time Clock/Calendar with Event/Time Stamp Detection & Alarms 


Real Time Clock with Time Stamp, Event Tamper Detection 

Low Power, Battery backup 

Low Cost 

Key Features 

• Real Time Clock/Calendar 

• Security and Event Functions 

— Tamper detection with Time stamp 

— Event alarm operation 

— Low power operations. Selectable sampling rates. 

— Selectable Glitch filter on Event Monitor Input 

• Polled or Periodic Alarm/IRQ 

• Selectable Dividers for Various Frequency Output 

• Battery Backup Switch or Super Cap Input 

• Battery Backup SRAM Timing and Alarm Registers 

• Oscillator Compensation on chip 

• 2 Bytes General Purpose SRAM 

• 2-Wire Interface, 400kHz data transfer rate 

• Low Power CMOS < 1µA Operating Current 

Benefits 

• Ideal for Security or Anti-Tampering, Panel / Enclosure Status, 

Warranty Reporting, Time Stamping Applications, 

Event Recording / Data Logging 

Block Diagram 

Description 

The X1209 device is a low power Real Time Clock with crystal 

and timing compensation, tamper or event detection, clock/ 

calendar, one polled alarm, power indicator, periodic and polled 

alarms and battery backup switch. 

The powerful alarm can be set to any Clock/Calendar value for 

a match. For instance, every minute, every Tuesday, or 5:23 AM 

on March 21. The alarm can be polled in the Status Register or 

provide a hardware interrupt (IRQ Pin). There is a repeat mode 

for the alarms allowing a periodic interrupt of 60-seconds, 

1-hour, 1-day, once-a-week, etc. 

The device offers a backup power input pin. This VBAT pin 


entire X1209 device is fully operational from 2.0V to 5.5 volts 

and the clock/calendar portion of the X1209 device remains 

fully operational in Standby Mode. 

The event detection function can be used for tamper detection, 

security or other chassis or generic system monitoring. The 

event monitor can function in both main V CC and battery backup 

modes. For low power savings the event monitor can be configured 

for various input detection rates. The event input monitor 

pin (EVIN) also has a selectable glitch filter to avoid switch 

de-bouncing and a selectable sampling rate to conserve power. 


X1209 

8-Pin MSOP, SOIC 

X1 

X2 

V BAT 

1 

2 

3 

4 

10 

9 

8 

7 

EVIN 5 6 


V CC 

IRQ / FOUT 

SCL 

SDA 

EVDET 

10-lead FCP 

Bump 

Chip 

Scale 

tbd 

X1 

OSC 

Compensation 

X2 32.768kHz Alarm Regs 

EVIN 

EVDET 

V BAT 

V CC 

V SS 

SCL 

SDA 

Event 

Detector 

V CC / Batt 

Switch 

Serial 

Interface 

Decoder 

Control 

Decode 

Logic 

Control 

Registers 

(SRAM*) 

Oscillator 

Frequency 

Divider 

Status 

Registers 

(SRAM) 

Timer 

Calendar 

Logic 

Alarm 

General Purpose 

SRAM 

Mask 

Timer 

Keeping 

Registers 

(SRAM*) 

Compare 

(SRAM*) 

IRQ / FOUT 

Interrupt 

Enable 

Alarm 

*battery backup SRAM 


www.xicor.com

® 


X40010/X40011/X40014/X40015 & X40410/X40411/X40414/X40415 

Dual Voltage Monitor with Integrated Watchdog Timer, Power-on Reset, Fault Detection, and Memory Option 


• Dual voltage monitors with integrated CPU Supervisor 

• EEPROM options (X40410/X40411/X40414/X40415) 

• Upgrade from popular X4043 CPU Supervisor family 

Key Features 

• Two low V CC detection and reset assertion LVS 

• Two independent voltage monitors 

• User-programmable V TRIP setting 

• Fault Detection Register (FDR) 

Benefits 

• Prevents lock up in multi-voltage systems 

• User programmable levels to meet special system requirements 

• Simple, easy to use - reduces design time 


on page 2-3 

Description 

The X40010/11/14/15 and X40410/411/414/415 combines 

power-on reset control, watchdog timer, supply voltage supervision, 

and secondary voltage supervision, and Block Lock 

protect serial EEPROM in one package. This combination lowers 

system cost, reduces board space requirements, and 

increases reliability. 

Applying voltage to V CC activates the power on reset circuit 

which holds RESET/RESET active for a period of time. This 

allows the power supply and system oscillator to stabilize 

before the processor can execute code. 

Low V CC detection circuitry protects the user’s system from 

low voltage conditions, resetting the system when V CC falls 

below the minimum V TRIP1 point. RESET/RESET is active until 

V CC returns to proper operating level and stabilizes. A second 

voltage monitor circuit tracks the unregulated supply to provide 

a power fail warning or monitors different power supply voltage. 



V2FAIL 

V2MON 

RESET/RESET 

V SS 

X40010/14, X40011/15 

X40410/14, X40411/15 

8-Pin SOIC 

1 

2 

3 

4 

8 

7 

6 

5 

V CC 

WDO 

SCL 

SDA 

X40010/14, X40011/15 

X40410/14, X40411/15 

8-Pin TSSOP 

WDO 1 

8 SCL 

V CC 2 

7 SDA 

V2FAIL 

V2MON 

3 

4 

6 

5 

V SS 

RESET/RESET 

Block Diagram 

SDA 

SCL 

V CC 

(V1MON) 

V2MON 

Data 

Register 

Command 

Decode Test 

& Control 

Logic 

Threshold 

Reset Logic 

User Programmable 

V TRIP1 

User Programmable 

V TRIP2 

Fault Detection 

Register 

Status 

Register 

+ 

- 

+ 

- 

V2MON* 

V CC 

*X40410/11= V2MON 

X40414/15 = V CC 

Watchdog Timer 

and 

Reset Logic 

Power on, 

Low Voltage 

Reset 

Generation 

WDO 

RESET 

X40410/14 

RESET 

X40411/15 

V2FAIL 

www.xicor.com 


® 


X40010/X40011/X40014/X40015 & X40410/X40411/X40414/X40415 

Dual Voltage Monitor with Integrated Watchdog Timer, Power-on Reset, Fault Detection, and Memory Option 

Ordering Information 

V CC 

Range 

V TRIP1 

Range 

V TRIP2 

Range Package 

Operating 

Temperature Range 

Part Number 

with RESET 

Part Number 

with RESET 

2.9-5.5 4.6V±50mV 2.9V±50mV 8L SOIC 0 o C - 70 o C X40010S8-A X40011S8-A 

-40 o C - 85 o C X40010S8I-A X40011S8I-A 

8L TSSOP 0 o C - 70 o C X40010V8-A X40011V8-A 

-40 o C - 85 o C X40010V8I-A X40011V8I-A 

2.6-5.5 4.4V±50mV 2.6V±50mV 8L SOIC 0 o C - 70 o C X40010S8-B X40011S8-B 

-40 o C - 85 o C X40010S8I-B X40011S8I-B 

8L TSSOP 0 o C - 70 o C X40010V8-B X40011V8-B 

-40 o C - 85 o C X40010V8I-B X40011V8I-B 

1.7-3.6 2.9V±50mV 1.7V±50mV 8L SOIC 0 o C - 70 o C X40010S8-C X40011S8-C 

-40 o C - 85 o C X40010S8I-C X40011S8I-C 

8L TSSOP 0 o C - 70 o C X40010V8-C X40011V8-C 

-40 o C - 85 o C X40010V8I-C X40011V8I-C 


-40 o C - 85 o C X40014S8I-A X40015S8I-A 


-40 o C - 85 o C X40014V8I-A X40015V8I-A 


-40 o C - 85 o C X40014S8I-B X40015S8I-B 


-40 o C - 85 o C X40014V8I-B X40015V8I-B 


-40 o C - 85 o C X40014S8I-C X40015S8I-C 


-40 o C - 85 o C X40014V8I-C X40015V8I-C 


V CC 

Range 

V TRIP1 

Range 

V TRIP2 

Range Package 

Operating 


Part Number 

with RESET 

Part Number 

with RESET 


-40 o C - 85 o C X40410S8I-A X40411S8I-A 


-40 o C - 85 o C X40410V8I-A X40411V8I-A 


-40 o C - 85 o C X40410S8I-B X40411S8I-B 


-40 o C - 85 o C X40410V8I-B X40411V8I-B 


-40 o C - 85 o C X40410S8I-C X40411S8I-C 


-40 o C - 85 o C X40410V8I-C X40411V8I-C 


-40 o C - 85 o C X40414S8I-A X40415S8I-A 


-40 o C - 85 o C X40414V8I-A X40415V8I-A 


-40 o C - 85 o C X40414S8I-B X40415S8I-B 


-40 o C - 85 o C X40414V8I-B X40415V8I-B 


-40 o C - 85 o C X40414S8I-C X40415S8I-C 


-40 o C - 85 o C X40414V8I-C X40415V8I-C 

www.xicor.com

® 


X40020, X40021, X40420, X40421 Dual Voltage Monitor with Integrated CPU Supervisor and System Battery Switch 


• CPU Supervisor with Dual Voltage Monitor 

• Built-in system battery switch 

• Ideally suited for dual-voltage applications with battery backup 

Key Features 

Two low V CC detection and reset assertion LVS 

• Two separate voltage monitors 

• V TRIP setting (electronically programmable) 

• Standard V TRIP offerings: 

V TRIP1 

V TRIP2 

4.6 (1%) 2.9 (1.7%) 

4.6 (1%) 2.6 (2%) 

2.9 (1.7%) 1.6 (3%) 


• 4K EEPROM (X40420/X40421 only) 

Benefits 

• Provides a reset when either V TRIP is triggered 

• Prevents system lock up and improves system accuracy 


• Maintains SRAM contents or processor operations during 

main power failure 

• Fault detection register allows reliability tracking or special 

fault recovery operations 

• High accuracy V TRIP 

Description 

The X40020/X40420/X40420/X40421 Product Family combines 

power-on reset control, watchdog timer, supply voltage supervision, 

and secondary supervision, and manual reset, in one 

package. This combination lowers system cost, reduces board 

space requirements, and increases reliability. 

Applying voltage to V cc activates the power on reset circuit 




Low V CC detection circuitry protects the user’s system from low 

voltage conditions, resetting the system when V CC falls below 

the minimum V TRIP1 point. RESET/RESET is active until V CC 

returns to proper operating level and stabilizes. A second 

voltage monitor circuit tracks the unregulated supply to provide 

a power fail warning or monitors different power supply voltage. 


on page 2-3 



X40420/21 Block Diagram* 

V2FAIL 

V2MON 

LOWLINE 

WDO 

MR 

RESET 

V SS 

X40420/X40020 

14-Pin SOIC, TSSOP 

1 

2 

3 

4 

5 

6 

7 

14 

13 

12 

11 

10 

9 

8 

V CC 

BATT-ON 

V OUT 

V BATT 

WP 

SCL 

SDA 

V CC 

V BATT 

MR 

(Manual 

Reset) 

+ 

- 

System 

Battery 

Switch 

POR 

Delay 

V OUT 

RESET 

X40421/X40021 


V2FAIL 1 

14 V CC 

V2MON 2 

13 BATT-ON 

LOWLINE 

WDO 

MR 

RESET 

3 

4 

5 

6 

12 

11 

10 

9 

V OUT 

V BATT 

WP 

SCL 

V SS 7 

8 SDA 

V 2MON 

V Trip1 

V Trip2 

+ 

- 

Watchdog 

Timer 

LOWLINE 

V2FAIL 

WDO 

SCL 

SDA 

WP 

Serial 

Interface 

Control 

Register 

EEPROM 

Fault 

Detection 

Register 

*X40020 & X40021 are non-memory options 

www.xicor.com 


® 


X40020, X40021, X40420, X40421 Dual Voltage Monitor with Integrated CPU Supervisor and System Battery Switch 


V CC 

Range 

V TRIP1 

Range 

V TRIP2 

Range Package 

Operating 


Part Number 

with RESET 

Part Number 

with RESET 


-40 o C - 85 o C X40020S14I-A X40021S14I-A 


-40 o C - 85 o C X40020V14I-A X40021V14I-A 


-40 o C - 85 o C X40020S14I-B X40021S14I-B 


-40 o C - 85 o C X40020V14I-B X40021V14I-B 


-40 o C - 85 o C X40020S14I-C X40021S14I-C 


-40 o C - 85 o C X40020V14I-C X40021V14I-C 

2.7-5.5 4.6V±50mV 2.9V±50mV 14L SOIC 0 C - 70 C X40420S14-A X40421S14-A 

-40 o C - 85 o C X40420S14I-A X40421S14I-A 


-40 o C - 85 o C X40420V14I-A X40421V14I-A 


-40 o C - 85 o C X40420S14I-B X40421S14I-B 


-40 o C - 85 o C X40420V14I-B X40421V14I-B 


-40 o C - 85 o C X40420S14I-C X40421S14I-C 


-40 o C - 85 o C X40420V14I-C X40421V14I-C 


www.xicor.com

® 


X40030/X40031/X40034/X40035 & X40430/X40431/X40434/X40435 Triple Voltage Monitor with 

Integrated Watchdog Timer, POR, MR, Fault Detection, and Memory Option 


• CPU Supervisor with Triple Voltage Monitor 

• Independent core voltage monitors (X40430/31 and X40410/11) 

allows the device to monitor voltage independent of chip V CC 

• Ideally suited for triple-voltage applications 

Key Features 

Two low V CC detection and reset assertion LVS 


• V TRIP setting (electronically programmable) 

• Standard V TRIP offerings (example X4043x): 

V TRIP1 V TRIP2 V TRIP3 

4.6 (1%) 1.3 (1.7%) 1.7V 

4.4 (1%) 1.0 (2%) 3.1V 

2.9 (1.7%) 1.6 (3%) 2.9V 


• 4K EEPROM (X40430/31/34/35 options) 

Benefits 

• Provides a reset when any V TRIP voltage is triggered 



• Maintains SRAM contents or processor operations during 

main power failure 

• Fault detection register allows reliability tracking or special 

fault recovery operations 

• High accuracy V TRIP 


Description 

The X40030/31/34/35 and X40430/31/34/35 combines poweron 

reset control, watchdog timer, supply voltage supervision, 

second and third voltage supervision, manual reset, and Block 

Lock protect serial EEPROM in one package. This combination 

lowers system cost, reduces board space requirements, and 


Applying voltage to V CC activates the power on reset circuit 




Low V CC detection circuitry protects the user’s system from 

low voltage conditions, resetting the system when V CC falls 

below the minimum V TRIP1 point. RESET/RESET is active until 

V CC 

returns to proper operating level and stabilizes. A second 

and third voltage monitor circuit tracks the unregulated supply 

to provide a power fail warning or monitors different power 

supply voltage. 


on page 2-3 

X40430/31/34/35 Block Diagram* 


V2FAIL 

V2MON 

LOWLINE 

NC 

MR 

RESET 

V SS 

X40030/X40034X40430/X40434 


1 

2 

3 

4 

5 

6 

7 

14 

13 

12 

11 

10 

9 

8 

V CC 

WDO 

V3FAIL 

V3MON 

WP 

SCL 

SDA 

MR 

(Manual 

Reset) 

V 1MON 

V Trip1 

+ 

- 

V 2MON + 

- 

V Trip2 

POR 

Delay 

RESET 

V2FAIL 

V2FAIL 

V2MON 

LOWLINE 

NC 

MR 

RESET 

V SS 

X40031/X40035X40431/X40435 


1 

2 

3 

4 

5 

6 

7 

14 

13 

12 

11 

10 

9 

8 

V CC 

WDO 

V3FAIL 

V3MON 

WP 

SCL 

SDA 

V 3MON 

V Trip3 

+ 

- 

Watchdog 

Timer 

V3FAIL 

WDO 

SCL 

SDA 

WP 

Serial 

Interface 

Control 

Register 

EEPROM 

Fault 

Detection 

Register 

www.xicor.com 

*X40030/31/34/35 without EEPROM 


® 


X40030/X404031/X40034/X40035 & X400430/X40431/X40434/X40435 Triple Voltage Monitor with 

Integrated Watchdog Timer, POR, MR, Fault Dectection, and Memory Option 

Ordering Information—No Memory Versions 

Monitored 

V CC Supplies 

V TRIP1 

Range 

V TRIP2 

Range 

V TRIP3 

Range Package 

Operating 


Part Number 

with RESET 

Part Number 

with RESET 

1.7-5.5 4.6V±50mV 2.9V±50mV 1.7V±50mV 14L SOIC 0 o C–70 o C X40030S14-A X40031S14-A 

-40 o C–85 o C X40030S14I-A X40031S14I-A 

14L TSSOP 0 o C–70 o C X40030V14-A X40031V14-A 

-40 o C–85 o C X40030V14I-A X40031V14I-A 

1.7-5.5 4.4V±50mV 2.6V±50mV 1.7V±50mV 14L SOIC 0 o C–70 o C X40030S14-B X40031S14-B 

-40 o C–85 o C X40030S14I-B X40031S14I-B 

14L TSSOP 0 o C–70 o C X40030V14-B X40031V14-B 

-40 o C–85 o C X40030V14I-B X40031V14I-B 

1.7-3.6 2.9V±50mV 2.2V±50mV 1.7V±50mV 14L SOIC 0 o C–70 o C X40030S14-C X40031S14-C 

-40 o C–85 o C X40030S14I-C X40031S14I-C 

14L TSSOP 0 o C–70 o C X40030V14-C X40031V14-C 

-40 o C–85 o C X40030V14I-C X40031V14I-C 













Ordering Information—Memory Versions 

Monitored 

V CC Supplies 

V TRIP1 

Range 

V TRIP2 

Range 

V TRIP3 

Range Package 

Operating 


Part Number 

with RESET 

Part Number 

with RESET 


























www.xicor.com

® 


X40626 Dual Voltage CPU Supervisor with 64K EE Memory 


• Dual voltage CPU supervisor with integrated 64K EE memory 

• Ideally suited for multivoltage applications 

Key Features 

Dual low V CC 

detection and reset assertion (LVS) 


V TRIP 

setting (electronically programmable) 

Device V TRIP1 

V TRIP2 

X40626-4.5A 4.62V 2.92V 

X40626 4.38V 2.92V 

X40626-2.7A 2.92V 2.25V 

X40626-2.7 2.62V 2.62V 

Benefits 

• Provides a reset when either V TRIP 

voltage is triggered 





NC 1 

14 V CC 

S 0 2 

13 NC 

S 1 3 

12 WP 

NC 4 

11 V2MON 

RESET 

NC 

V SS 

5 

6 

7 

10 

9 

8 

V2FAIL 

SCL 

SDA 

V2MON 

WP 

SDA 

SCL 

S0 

S1 

Description 

The X40626 combines four popular functions. Power-on Reset 

Control, Watchdog Timer, Dual Supply Voltage Supervision, 

and Serial EEPROM Memory in one package. This combination 

lowers system cost, reduces board space requirements, and 


Applying power to the device activates the power on reset circuit 

which holds RESET active for a period of time. This allows 

the power supply and oscillator to stabilize before the processor 

can execute code. 

The watchdog timer provides an independent protection mechanism 

for microcontrollers. When the microcontrollers fail to 

restart a timer within a selectable time-out interval, the device 

activates the RESET signal. The user selects the interval from 

three present values. Once selected, the interval does not 

change, even after cycling the power. 


on page 2-3 

X40626 Block Diagram 

Data 

Register 


Decode & 

Control 

Logic 

V CC Threshold 

Reset logic 

V2 Monitor 

Logic 

Watchdog Transition 

Detector 

Block Lock Control 

Protect Logic 

Status 

Register 

64KB 

EEPROM 

Array 

+ 

V TRIP2 

- 

Watchdog 

Timer Reset 

Reset & 

Watchdog 

Timebase 

V2FAIL 

RESET 


V CC + 

V TRIP 

- 

Power on and 

Low Voltage 

Reset 

Generation 


Operating Temperature 

Part Number RESET 

V CC Range V TRIP Range V TRIP2 Range Package Range (Active LOW) 

4.5–5.5V 4.5–4.75 2.85–3.0 14L SOIC 0˚C–70˚C X40626S14–4.5A 

-40˚C–85˚C 

X40626S14I–4.5A 

14L TSSOP 0˚C–70˚C X40626V14–4.5A 


X40626V14I–4.5A 

4.5–5.5V 4.25–4.5 2.85–3.0 14L SOIC 0˚C–70˚C X40626S14 


X40626S14I 

14L TSSOP 0˚C–70˚C X40626V14 


X40626V14I 

2.1–5.5V 2.85–3.0 2.15–2.3 14L SOIC 0˚C–70˚C X40626S14–2.7A 


X40626S14I–2.7A 

14L TSSOP 0˚C–70˚C X40626V14–2.7A 


X40626V14I–2.7A 

2.1–5.5V 2.55–2.7 2.55–2.7 14L SOIC 0˚C–70˚C X40626S14–2.7 


X40626S14I–2.7 

14L TSSOP 0˚C–70˚C X40626V14–2.7 


X40626V14I–2.7 

www.xicor.com 


® 


X45620 Dual Voltage Monitor Battery Switch and 256K EE Memory 


• CPU Supervisor with Dual Voltage Monitor 

• System Battery Switch-Over Circuitry 

• Lowline Output with Zero Delayed POR 

Key Features 

• Integrated System Battery Switch-Over Circuitry 

• Electronically-Programmable V TRIP 

Setting 

• Standard V TRIP 

Offerings 

Device V TRIP1 

V TRIP2 

X45620 4.62V 2.62V 

X45620-2.7 2.62V 1.75V 

• Independent Watchdog Timer with User-Selectable Protection 

• Manual Reset Capability 

• 256K EEPROM with Block-Lock Write Protection 

Benefits 

• Circuitry provides protection from main power failure 

• Asserts a reset when either V TRIP 

voltage is triggered 

• Prevents system lock up and improved system accuracy 

• WDT provides independent protection mechanism 

for microcontrollers 


Block Diagram 

V2MON 

WP 

SDA 

SCL 

S0 

S1 

V CC 

(V1MON) 

V OUT 

V BATT 

Watchdog Transition 

Detector 

Data 

Register 


Decode, Test 

& Control 

Logic 

Device 

Select 

Logic 

System 

Battery 

Switch 

V2 Monitor 

Logic 

Address-Decoder 

V CC Monitor 

Logic 

Protect Logic 

Status 

Register 

EEPROM 

Array 

V OUT 

+ 

V TRIP2 

- 

512 X 512 

(32K X 8 Bit) 

V OUT 

+ 

V TRIP1 

- 

Watchdog 

Timer Reset 

Reset & 

Watchdog 

Timebase 

Power on, 

Low Voltage 

Reset 

Generation 

V2FAIL 

WDO 

BATT-ON 

RESET/MR 

LOWLINE 

Description 

The Xicor X45620 combines power-on reset control, battery 

switch circuit, watchdog timer, supply voltage supervision, 

secondary voltage supervision, block lock protect and serial 

EEPROM in one package. This combination lowers system cost, 

reduces board space requirements, and increases reliability. 

Applying power to the device activates the power on reset circuit 

which holds RESET active for a period of time. This allows the 

power supply and oscillator to stabilize before the processor can 

execute code. 

A system battery switch circuit compares V CC (V1MON) with 

V BATT input and connects V OUT to whichever is higher. This 

provides voltage to external SRAM or other circuits in the event 

of main power failure. 

The Watchdog Timer provides an independent protection 

mechanism for microcontrollers. When the micro-controller 

fails to restart a timer within a selectable time out interval, the 

device activates the WDO signal. 

The device’s low V CC detection circuitry protects the user’s 

system from low voltage conditions, resetting the system when 

V CC (V1MON) falls below the minimum V CC trip point (V TRIP1 ). 

RESET is asserted until V CC returns to proper operating level 

and stabilizes. A second voltage monitor circuit tracks the 

unregulated supply or monitors a second power supply voltage 

to provide a power fail warning. 


S0 

S1 

NC 

LOWLINE 

NC 

V2FAIL 

V2MON 

RESET/MR 

WDO 

V SS 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

20-Pin TSSOP 

20 

19 

18 

17 

16 

15 

14 

13 

12 

11 

V CC (V1MON) 

WP 

NC 

BATT-ON 

V OUT 

V BATT 

SCL 

NC 

NC 

SDA 


Operating Temperature 

Part Number RESET 

V CC Range V TRIP Range V TRIP2 Range Package Range (Active LOW) 

4.75–5.5V 4.5–4.75V 2.55–2.7V 20L TSSOP 0°C–70°C X45620V20 

-40°C–85°C 

X45620V20I 

2.7–5.5V 2.55–2.7V 1.7–1.80V 20L TSSOP 0°C–70°C X45620V20-2.7 

-40°C–85°C 

X45620V20I-2.7 

1–12 www.xicor.com

® 

Power Management Products [Hotswap, Power Sequencing, Systems & Battery Management] 

X3100/X3101 Smart Safety Unit 


• The X3100/X3101 is the industry’s first smart safety unit for 

Lithium Ion (Li-Ion) and Li-Polymer battery packs 

• The X3100/X3101 provides all critical functions for battery pack 

operations 

— Cell balancing 

— Overvoltage and undervoltage detection 

— Overcurrent protection 

Key Features 

• Software selection safety levels 

— Over-voltage, under-voltage, over-current 

— Selectable detection levels 

— Selectable release times 

• Monitors both cell and pack voltage/current 

• Integrated EEPROM memory 

• Flexible low power (90µA) & sleep (1µA) modes 

• Integrated voltage regulator 

Benefits 

• Optimize safety levels to match system requirements 

• Compensates for the difference in safety levels due to 

variations in cell chemistry 

• Enables low cost software gas gauging 

• Control cell balancing during charging to maximize 

battery life 

• Programmable current sense amplifier increases current 

measurement accuracy 

• Record battery history 

• Store charging algorithms 

• Store key parameters to compensate for temperature effects 

• Optimize power consumption to maximize battery use between 

charge cycles 

• Stable reference during power up/down 

• Analog reference used for A/D converters in an attached microcontroller 

Description 

The 3100 is a protection and monitor IC for use in battery packs 

consisting of 4 series Lithium-Ion battery cells. The X3101 is 

designed to work in 3 cell applications. Both devices provide 

internal over charge, over-discharge, and over-current protection 

circuitry, internal EEPROM memory, an internal voltage 

regulator, and internal drive circuitry for external FET devices 

that control cell charge, discharge, and cell voltage balancing. 

Over charge, over-discharge, and over-current thresholds 

reside in an internal EEPROM memory register and are 

selected independently via software using a 3MHz SPI serial 

interface. Detection and time-out delays can also be individually 

varied using external capacitors. 

Using an internal analog multiplexer, the X3100 or X3101 

allow battery parameters such as cell voltage and current 

(using a sense resistor) to be monitored externally by a separate 

microcontroller with A/D converter. Software on this 

microcontroller implements gas gauge and cell balancing 

functionality. 

The X3100 and X3101 contain a current sense amplifier. 

Selectable gains of 10, 25, 80, and 160 allow an external 10 bit 

A/D converter to achieve better resolution than a more expensive 

14 bit converter. 

An internal 4kbit EEPROM memory featuring IDLock , allows the 

designer to partition and “lock in” written battery cell/pack data. 


28 Lead TSSOP 

VCELL1 

CB1 

VCELL2 

CB2 

VCELL3 

CB3 

VCELL4/V SS 

CB4 

V SS 

1 

2 

3 

4 

5 

6 

7 

8 

9 

28 

27 

26 

25 

24 

23 

X3100/ 22 

X3101 

21 

20 

VCS1 

VCS2 

OVT 

UVT 

OCT 

10 

11 

12 

13 

14 

19 

18 

17 

16 

15 

V CC 

RGP 

RGC 

RGO 

UVP/OCP 

OVP/LMON 

CS 

SCK 

SO 

SI 

AS2 

AS2 

AS0 

AO 


on page 2-14 


www.xicor.com 



® 

X3100/X3101 Smart Safety Unit 

X3100 Block Diagram* 

V CC 

RGP RGC RGO UVP/OCP OVP/LMON 

5VDC 

Regulator 

FET Control 

Circuitry 

A50 

VCELL1 

CS1 

VCELL2 

CS2 

VCELL3 

CS3 

VCELL4/V SS 

Over-charge 

Over-discharge 

Protection 

Sense Circuits 

Protection 

Sample Rate 

Timer 

Internal Voltage Regulator 

Power ON Reset and 

Status Register 

4-Kbit 

EEPROM 

Analog 

MUX 

A51 

A52 

A0 

SO 

CS4 

Over-current 

Protection & 

Current Sense 

Protection 

Current Timing 

Control & 

Configuration 

Configuration 

Register 

Control 

Register 

SPI 

I/F 

SCK 

C3 

S1 

V SS 

VCS1 VCS2 OVT UVT OCT 

*X3101 similar but 3-cell 


P/N Description Interface Sleep Current Package Application Availability 

Safety Units 

X3100V28 4 cell programmable SPI 1µA TSSOP 28 Notebook PC; NOW 

Li-Ion Safety unit 

Industrial 

X3101V28 3 cell programmable SPI 1µA TSSOP 28 Notebook PC; NOW 

Li-Ion Safety unit 

Industrial 


www.xicor.com

® 


X51694 Low Cost System Bus Accelerator 


• Low Cost, Improved Version of Linear Technology’s LTC1694 

Key Features 

• Active Terminator for SMBus and other 2WSB 

(2-wire Serial Bus) signals 

• Enhances System Bus Signal Rise Time 

• Increases bus capacity while guaranteeing data integrity 

• 2 mA rise time supply current 

• ESD protection on SDA and SCL pins 

• Wide operating voltage range: 2.7 V to 5.5 V 

• Small package - SOT23-5 

Benefits 

• Ideal for systems using a large number of 2-wire serial 

bus components 

• Ideal for IPMI, ICMB, SMBus or 2WSBs (2-wire Serial Bus) 

mezzanine bus schemes that need active termination. 

• Target Applications: Servers, Data Acquisition, Routers, Battery 

Chargers, Portable Instrumentation, Notebook, PC, and Facilities 

Tracking Systems, ATCA, PICMG3.x, and PICMG2.x applications 

• Dramatically reduces rise time to maintain signal integrity for 

SMBus or 2-wire bus signals delayed by high capacitances 

caused by interconnects, backplane connections, excessive 

device loading or by long capacitive connections 

Application Example 

Description 

The SMBus accelerator (SMA) is designed to enhance 2 signal 

rise times according to SMBus specifications. The SMA is also 

compatible with the 2-wire bus. Enhancement of both data signals 

guarantees data integrity throughout the bus while 

improving slew rate and overall bus performance. 

The SMA incorporates an active pull-up design for maintaining 

data reliability and speed. Internal bus line level detectors monitor 

the two signal lines and trigger two bi-level hysteretic current 

sources at a specific switching threshold to speed up the rise 

time of the signal lines. While the signal lines are transitioning 

from low to high, 2 mA of current is sourced for slew rate 

enhancement. The SMA goes into low power standby mode 

during high to low transitions or steady state signal values. 

The SMA provides an essential function in SMBus applications 

because of multiple capacitances located throughout systems 

in the form of long interconnects and multiple device input 

capacitances. By incorporating SMA, systems using SMBus or 

2-wire bus can reliably increase their bus load without the risk 

of data loss. 


X51694 

SOT-23 

V CC 1 5 

GND 2 

NC 3 4 

SMBus1 

SMBus2 


Vcc SMBus1 

SMBus2 

X51694 

GND 


BUS SIGNALS 

DATA 

CLK 

interconnect: 

SBS, PCI, 

compact PCI, 

PMCI, ACPI, 

ICMB, IPMI, 

IPMB, SMBus, 

2-wire 

CLK IN 

CLK OUT 

DATA IN 

DATA OUT 

www.xicor.com 


® 


X80000/X80001 Family–Hot Swap and Smart Power Plug Sequencers 


• Power Communications. Manages power supply demand 

on the backplane-to-blades 

• Hotswap. Protection of circuits from hot voltages during 

backplane insertion/extraction 

• Sequencing. Provides power sequencing between 

DC-DC modules 

Key Features 

Integrates three major functions 

1. Smart Power Plug 

—Intelligent board insertion allows verification of board 

and power supply resources prior to system insertion 

—Fault detection register records the cause of the faults 

—Soft extraction and Soft Re-Insertion 

—Power ID/Manufacturing ID memory (2kb of EEPROM) 

2. Programmable power sequencing 

—Sequence up to 5 DC/DC converters 

—Four independent voltage enable pins 

—Four programmable time delay circuits 

3. Hot swap controller 

—Programmable overvoltage and undervoltage protection 

—Programmable slew rate for external FET gate control 

—Electronic circuit breaker - Overcurrent detection 

and gate shut-off 

—Typically operates from -30V to -80V. Tolerates translents 

to -200V (limited by external components) 

Available packages 

—32-lead Quad No-lead Frame (QFN) 


X80000/X80001 

32-lead QFN Quad Package 

V DD 

VEE 

I GQ0 

V I UV/OV GQ1 

SENSE 

PWRGD 

GATE 

BATT-ON 

DRAIN 

FAR 

NA 

NC 

V 

A1 

EE 

MRH 

V RGO 

32 31 30 29 28 27 26 25 

1 

24 

A0 

V4GOOD 

2 

3 

23 

22 

EN4 

V3GOOD 

EN3 

4 

5 

6 

(7mm x 7mm) 

21 

20 

19 

V2GOOD 7 

18 

EN2 8 17 

9 10 11 12 13 14 15 16 

NC 

MRC 

WP 

RESET 

V1GOOD 

EN1 

SCL 

SDA 

Benefits 

Smart Power 

• X80000 Allows the system to query the voltage, current, 

and board type before power is granted to the board being 

inserted 

• X80000 also monitors DC power distribution status on 

each board 

• Modular Power Distribution Design 

• -48V typically is distributed to downstream DC-DC 

modules (which produce 0.9VDC to 12VDC) 

• X80000 allows for up to Five DC-DC modules to be 

sequenced 

• Safety and Reliability 

• X80000 provides flexibility of design to deal with inrush 

currents and live voltages during insertion, normal operation, 

and extraction 

Description 

The X80000 contains three major functions: a power communications 

controller, a power sequencing controller, and a 

hotswap controller. 

The power communications controller allows smart power 

supply control via the backplane using the SMBus protocol. The 

system can check for voltage, current, and manufacturing ID 

compliance before board insertion. The power distribution network 

can monitor the status of the negative voltage supply, DC 

voltage supplies, and hardshort events by accessing the Fault 

Detection Register and General Purpose EEPROM of the device. 

Each device has a unique slave address for identification. 

The power sequencer controller time sequences up to five 

DC-DC modules. The X80000 allows for various hardwired 

configurations, either parallel or relay sequencing modes. 

The power good, enable and voltage good signals provide for 

flexible DC-DC timing configurations. Each voltage enable 

signal has a programmable delay. In addition, the voltage good 

signals can be monitored remotely via the fault detection register 

(thru the SMBus). 


Order 

Number OV UV1 UV2 

Temp 

Range Package 

Part 

Mark 

X80000Q32I 74.9 42.4 33.2 I QFN 80000I 

X80001Q32I 68.0 42.4 33.2 I QFN 80001I 


on page 2-14 


® 


X80000/X80001 Family–Hot Swap and Smart Power Plug Sequencers 

Block Diagram 

V UV/OV 

V OV Ref 

2:1 

V UV1 Ref 

MUX 

Power Good 

Logic 

V EE 

PWRGD 


V UV2 Ref 

BATT-ON 

DRAIN 

V EE 

1V Ref 

V RGO 

Over current logic, 

Hard short relay, 

Retry logic status 

and delay 

V EE 

FAR 

GATE 

50uA 

V DD 

V DD 

IGQ1 

IGQ0 

Slew Rate 

Selection 

Gate 

Control 

POR 

5V reg. 

V RGO 

V EE 

V OC REF 

Reset Logic 

and Delay 

RESET 

SENSE 

3R 

38R 

V EE 

V EE 

MRH 

Sequence 

and Timing 

Control Logic 

MRC 

EN1 

EN2 

EN3 

V EE 

V RGO 

OSC 

Divider 

Reset 

4 

4 

Select 

0.1s 

0.5s 

1s 

5s 

delay 1 

delay 2 

delay 3 

V1GOOD 

V2GOOD 

V3GOOD 

EN4 

delay 4 

Delay circuit 

repeated 4 times 

V4GOOD 

V EE 

Power 

Communications 

Hot Swap 

Controller 

Time 

Base Sequencer 


® 


X80010/X80011/X80012/X80013 Family–Hot Swap and Sequencer with Systems Management + Analog -48V Hotswap 


• Hotswap. Protection of circuits from hot voltages during 

backplane insertion/extraction 

• System Management. Provides Power Reset to Host CPU-side 

and Auxiliary voltage for –48V plane 

• Sequencing. Provides power sequencing between DC-DC modules 

Key Features 

Integrates three major functions 

1. Penta-Power Sequencing 

—Sequence up to 5 DC/DC converters 

—Four independent voltage enable pins 

—Four time delay circuits 

2. Hot swap controller 

—Programmable overvoltage and undervoltage protection 

—Electronic circuit breaker - Overcurrent detection 

and gate shut-off 

—Selectable gate current using IGQ pins (10, 70, 150µA) 

—Typically operates from -30V to -80V. Tolerates translents 


3. System management 

—Reset output, with delay, holds off host until all supplies are good 

Available packages 

—32-lead Quad No-lead Frame (QFN) 

Benefits 

High Integration and Flexible Control 

• X80010 provides complete power distribution solution from backplane 

thru blade to the DC-DC modules 

• X80010 also provides resets for both the negative and positive 

power supply planes to avoid “power hang ups” 

Flexible, Robust Hotswap and DC Module Sequencing Design 

• X80010 allows for up to Five DC-DC modules to be sequenced 

• X80010 provides flexibility of design to deal with inrush currents 

and live voltages during insertion, normal operation, and extraction 


Description 

The X80010/11/12/13 contains three major functions: a power 

sequencing controller, a hotswap controller, and systems management 

support. 

The power sequencer controller time sequences up to five DC- 

DC modules. The device allows various DC/DC power sequencing 

configurations, either parallel or relay modes. The power 

good, enable, and voltage good signals provide for flexible DC- 

DC timing configurations. Each voltage enable signal has a 

built-in delay while additional delay can be added with simple 

external passive components. 

The hot swap controller allows a board to be safely inserted and 

removed from a live backplane without turning off the main 

power supply. The X80010 family of devices offers a modular, 

power distribution approach by providig flexibility to solve the 

hotswap and power sequencing issues for insertion, operations, 

and extraction. Hardshort Detection and Retry with Delay, 

Noise filtering, Insertion Overcurrent Bypass, and Gate Current 

selection are some of the integrated features of the device. 

During insertion, the gate of an external power MOSFET is 

clamped low to suppress contact bounce. The under-voltage/ 

over-voltage circuits and the power on reset circuitry suppress 

the gate turn on until the mechanical bounce has ended. The 

X80010 turns on the gate with a user set slew rate to limit the 

inrush current and incorporates an electronic circuit breaker set 

by a sense resistor. After the load is successfully charged, the 

PWRGD signal is asserted; indicating that the device is ready to 

power sequence the DC-DC power bricks. 

Systems management function provides a reset signal indicating 

that the power good and all the voltage good signals are 

active. The reset signal is asserted after a wait state delay. This 

signal is used to coordinate the hotswap and DC-DC module 

latencies during power up to avoid “power hang up”. In addition, 

the CPU host can initiate soft insertion or DC voltage module 

re-sequencing. 

X80010/11/12/13 

32-lead QFN Quad Package 

V DD MRH 

VEE 

I GQ1 

SENSE 

PWRGD 

GATE 

BATT-ON 

DRAIN 

FAR 

NA 

NC 

NA 

V EE 

V RGO 1 

32 31 30 29 28 27 26 25 

24 

NA 

V4GOOD 

2 

3 

23 

22 

EN4 

V3GOOD 

EN3 

4 

5 

6 

(7mm x 7mm) 

21 

20 

19 

V2GOOD 7 

18 

EN2 8 17 

9 10 11 12 13 14 15 16 

V UV/OV 

I GQ0 

NC 

MRC 

NA 

RESET 

V1GOOD 

EN1 

NA 

NA 


Order 

Number OV UV1 UV2 

Temp 

Range Package 

Part 

Mark 

X80000Q32I 74.9 42.4 33.2 I QFN 80000I 

X80001Q32I 68.0 42.4 33.2 I QFN 80001I 


on page 2-14 


® 


X80010/X80011/X80012/X80013 Family–Hot Swap and Sequencer with Systems Management + Analog -48V Hotswap 

Block Diagram 

V UV/OV 

V OV Ref 

2:1 

V UV1 Ref 

MUX 

Power Good 

Logic 

V EE 

PWRGD 


BATT-ON 

V UV2 Ref 

DRAIN 

GATE 

IGQ1 

IGQ0 

SENSE 

V EE 

MRC 

MRH 

EN1 

EN2 

EN3 

EN4 

V V EE 

RGO 




1V Ref 


V EE 

10-160uA 

V DD 

R 

Slew Rate Gate 

POR 

5V reg. 

Selection Control 

Programmable 

Reset Logic 

V EE V OC REF 


V EE 

R R R R 36R 

Over current 

x2 x3 

select 

x1 x4 

Control and 

Fault 

Registers 

V 

Enable Logic 

Delay Logic 

EEPROM 

EE 

V EE 

2kbits 

Time Delay 1 

V TRIP1 

Time Delay 2 

V TRIP2 

Time Delay 3 

V TRIP3 

Time Delay 4 

V TRIP4 

V EE 

Bus Interface 

FAR 

V DD 

V RGO 

RESET 

SDA 

SCL 

WP 

A2 

A1 

V1GOOD 

V2GOOD 

V3GOOD 

V4GOOD 

Hotswap 

Controller 

System 

Mgt 

Time 

Base Sequencer 

www.xicor.com 


® 

Power Management Products [Hotswap, Power Sequencing, System & Battery Management] 

X80070/X80071/X80072/X80073 Hotswap Controller with Advanced Fault Protection and Voltage Regulator 


• Hotswap. Protection of circuits from hot voltages during backplane 

insertion/extraction 

• Complete Electronic Circuit Breaker 

• See Application Note: AN169 

Key Features 

• Hot Swap Controller 

— Overvoltage and undervoltage protection 

— Undervoltage lookout for battery/redundant supplies 

— Electronic circuit breaker 

— Selectable gate current for slew rate for external FET gate control 

— Drain sense for power good control 

— Overcurrent detection and gate shut-off 

— 3X overcurrent limit on insertion 

— 5µs overcurrent filter 

— Hardshort retry and indicator 

— Typically operates from -30V to -80V, Tolerates transients 


— Soft re-insertion 

— Soft extraction 

• Voltage Regulator Output for Supervisory Functions 

• Debounced Manual Reset Input 

Description 

The X80070 is a hot swap controller that allows a board to be 

safely inserted and removed from a live backplane without 

turning off the main power supply. 

During insertion, the gate of an external power MOSFET is 

clamped low to suppress contact bounce. The under-voltage/ 

over-voltage circuits and the power on reset circuitry suppress 

the gate turn on until the mechanical bounce has ended. The 

X80070 turns on the gate with a slew rate to limit the inrush 

current and incorporates an electronic circuit breaker set by a 

sense resistor. After the load is successfully charged, the 

PWRGD signal is asserted; indicating that the device is ready to 

power sequence the DC-DC power bricks. 

At all times, the X80070 monitors for undervoltage, overvoltage, 

and overcurrent conditions. If any fault occurs, the gate 

will be immediately shut off and the PWRGD will be returned to 

the inactive state. The X80070 contains overvoltage, undervoltage 

and overcurrent detection, hardshort retry, gate control 

slew rate and power good control. 

Block Diagram 

Benefits 

• X80070/71/72/73 offers slew rate (inrush current) 

control via the IGQ1 and IGQ0 pins. Use VRGO to 

bias IGQ1 and IGQ0 pins 

• Inrush vs. Gate Current Control can be achieved for 

various loading and transients. Changing IGQ1 and 

IGQ0 can change the surge current and gate 


X80070 

20L QFN Package 

MR 

IGQ0 

IGQ1 

PWRGD 

BATT-ON 

V + 

UV/OV 

– 

V OV Ref 

+ 


2:1 

V UV1 Ref 

MUX 

+ 


BATT-ON 

GATE 

IGQ1 

IGQ0 

SENSE 

V EE 

V EE 

3R 

V UV2 Ref 

50uA 

Slew Rate 

Selection 

V OC REF 

38R 

Gate 

Control 

V DD 

Power Good 

Logic 





POR 

Reset Logic 


5V reg 

V EE 

V EE 

PWRGD 

FAR 

V DD 

V RGO 

V RGO 

DNC 

NA2 

NA2 

V DD 

20 19 18 17 16 

1 

2 

15 

14 

3 5mm x 5mm 13 

4 

5 6 7 8 9 

12 

11 

10 

FAR 

NA2 

NA1 

NA1 

DNC 

V EE 

MR 

+ 


Timing/ 

Control Logic 

V EE 

V UV/OV 

SENSE 

GATE 

DNC 

TOP VIEW 

Hotswap 

Controller 

Fault 

Protection 

Voltage 

Regulator 


on page 2-14 



® 

X80140–Series, X80130–Series, X80120–Series Quad, Triple, Dual Voltage Supervisor and Time Sequencing Controllers 


Complete power sequencing solution that can be used for a wide variety 

of applications that can sequence voltage sources and resolve system 

timing issues. 

These devices integrate voltage monitors, voltage references, oscillatorfree 

selectable time delays, voltage good enable drivers, fault detection 

register, Power-On Reset, Manual Reset, general purpose EEPROM, and 

a SMBus serial port. Intelligent power sequencing provides programmable 

delays and remote voltage status monitoring via the SMBus. 

Key Features 

• Voltage Monitors. The X80140-Series (four voltage monitors), 

X80130-Series (three voltage monitors), X80120-Series (two voltage 

monitors), integrated voltage references and comparators that 

are set to different voltage trip points between 0.9V to 5V. Each 

device has a unique set of voltage trip points to trigger time delays. 

• Time-base Sequencers. Time delay circuits with SMBus selectable 

time delay allows between 100 milliseconds to 5 seconds. Timeout pin 

indicators are provided. Internal oscillator and dividers are integrated 

• System management Functions. Integrated Power-On Reset with 

selectable delay, manual reset, and Fault Detection Register allow 

for additional power status or control of each timer and voltage 

supervisor via the SMBus 

• 2Kbit of EEPROM for general purpose use to store timing information, 

manufacturing information, and other calibration data 

Benefits 

• Allows for flexible power sequencing designs that support both 

parallel and relay sequencing configurations. 

• Multiple devices can be cascaded to support more complicated 

time-based sequencing designs 

• System management functions include Power-On Reset with 

Selectable Delay and Manual Reset to provide CPU host 

components control over power readiness 

• Functionally the devices can be used in a wide range of applications 

• See Application Note: AN166 and others 

Description 

These devices are voltage supervisor/sequencers with up to four 

built in voltage monitors. This allows the designer to monitor 

up to four voltages and sequence up to five events. 

Low voltage detection circuitry protects the system from power 

supply failure or “brown out” conditions, resetting the system 

and resequencing the voltages when any of the monitored 

inputs fall below the minimum threshold level. The RESET pin 

is active until all monitored voltages reach proper operating 

levels and stabilize for a selectable period of time. Five common 

low voltage combinations are available, however, Xicor’s 

unique circuits allow the voltage monitor threshold to be reprogrammed 

for special needs or for applications requiring higher 

precision. 

A manual reset input provides debounce circuitry for minimum 

reset component count. Activating the manual reset both controls 

the RESET output and resequences the supplies through 

control of the ViGDO pins. 

The device have 2kb of EEPROM for system configuration, 

manufacturing or maintenance information. This memory is 

protected to prevent inadvertent changes to the contents. 

Pin Configuration* 

V4GDO 

V4MON 

V3GDO 

V3MON 

V2GDO 

X80140/1/2/3/4 

V CC 

NC 

MR 

20 19 18 17 16 

1 

15 

2 

14 

3 5mm x 5mm 13 

4 

12 

5 

11 

6 7 

V P 

A0 

V2MON 

V SS 

8 9 10 

DNC 

A1 

SDA 

WP 

RESET 

V1GDO 

V1MON 

SCL 

*X80120 and X80130 Series have similar pinout 



on page 2-14 

www.xicor.com 


® 


X80140–Series, X80130–Series, X80120–Series Quad, Triple, Dual Voltage Supervisor and Time Sequencing Controllers 

Block Diagram 

RESET 

V CC 

MR 

V SS 

POR 

Reset Logic 



Fault 

Registers 

Bus Interface 

SDA 

SCL 

WP 

A0 

A1 

V P 

VMON Logic 

OSC 

Divider 

EEPROM 

2kbits 

V SS 

V1MON 

V2MON 

V3MON 

V4MON 

V SS 

V REF1 

V REF2 

V REF3 

V REF4 

+ 


+ 


+ 


+ 


Reset 

4 

4 

Select 

0.1s 

0.5s 

1s 

5s 

Delay1 

Delay2 

Delay3 

Delay4 

Delay circuit 

repeated 4 times 

V SS 

V1GDO 

V2GDO 

V3GDO 

V4GDO 

*X80140 Shown 


Part Number Ordering Voltage Monitor Delay Trip Point 

# of Programmable Power-On Master Fault Interface 

Code Delay Time Delay Reset with Reset Detection 

Monitor 1 Monitor 2 Monitor 3 Monitor 4 Timers Delay 

Dual Sequencer 

X80120 X80120Q20I 4.5V (4.48-4.52) 0.9V (0.88-0.92) 2 100ms, 500ms, 1 sec, 5 sec Y Y Y SMBus 

X80121 X80121Q20I 3.0V (2.98-3.02) 0.9V (0.88-0.92) 2 100ms, 500ms, 1 sec, 5 sec Y Y Y SMBus 

Triple Sequencer 

X80130 X80130Q20I 4.5V (4.48-4.52) 3.0V (2.98-3.02) 0.9V (0.88-0.92) 3 100ms, 500ms, 1 sec, 5 sec Y Y Y SMBus 




Quad Sequencers 

X80140 X80140Q20I 4.5V (4.48-4.52) 3.0V (2.98-3.02) 2.25V (2.23-2.27) 0.9V (0.88-0.92) 4 100ms, 500ms, 1 sec, 5 sec Y Y Y SMBus 






® 


X80200–Series Voltage Ramp Sequencers with Remote Status/Shutdown 


Complete voltage ramp sequencer for up to three DC voltage sources. 

Includes three integrated charge pumps, voltage monitors, undervoltage 

lookout, and power sequencing logic and control inputs to set up wide 

variety of solutions. 

Key Features 

• Sequence three voltage supplies independently 

—Core and Logic I/O VCC power sequencer for processor supplies 

• Voltage monitors have undervoltage lockout 

—Internal charge pump drives external N-channel FET switches 

—Cascadable to sequence more than 3 supplies 

—Time based or voltage based sequencing 

• Status register bits monitor gate output status 

• SMBus compatible Interface 

• Slave address identification for up to 8 power sequencers 

(24 supplies) on the same bus. 

Benefits 

• Independent charge pump control with sequencer logic of inputs 

• Wide variety of voltage sequencing applications 

• No oscillation required 

• Remote monitoring via 2-wire bus 

• See Application Note: AN165 and others 


SETV 

REF 

A0 

GND 

A1 

A2 

NC 

SDA 

SCL 

READY 

20-lead TSSOP 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 


20 

19 

18 

17 

16 

15 

14 

13 

12 

11 

VDDL 

VDDM 

VDDH 

VFB 

DNC 

GATE_M 

GATE_H 

GATE_L 

ENS 

GATEH_EN 

UVLO H 

UVLO M UVLO L Package Part Number 

4.5 3.0 0.9 TSSOP X80200V20I 

4.5 2.25 0.9 TSSOP X80201V20I 

3.0 2.25 1.7 TSSOP X80202V20I 

3.0 2.25 0.9 TSSOP X80203V20I 

3.0 0.9 0.9 TSSOP X80204V20I 

VDDM 

VDDL 

SETV 

REF 

A0 

1 

2 

3 

4 

5 

Description 

The X80200 power sequencer provides a flexible approach for 

handling difficult system power up conditions. The X80200 

includes control of up to three voltage supplies and can be cascaded 

to control additional supplies. The device contains independent 

undervoltage lockout for each controlled voltage. 

The three voltage control circuits allow sequencing for primary, 

core, and I/O voltages. The core and I/O supplies are linked 

together with a comparator or a timer allowing a tight coupling 

between these two supplies. The sequencing may be either 

voltage based or time based. 

The X80200 contains separate charge pumps to control external 

N-channel power FETs for each of the supplies. The charge 

pumps provide the high gate control voltage necessary for efficient 

operation of the FET switches. 

The X80200 turns on the primary voltage to the system when 

the voltage has been on and stable for 1ms. This primary FET 

switch turn-on can be delayed with an external RC circuit. The 

device has a built-in “core-up-first and core-down-last” 

sequencer which is ideal for high performance processors, 

DSPs, and ASICs. 

The serial bus can be used to monitor the status or turn off 

each of the external power switches. The X80200 has 3 slave 

address bits that allow up to 8 devices to be connected to the 

same bus. 

Block Diagram 

VDDH VFB NC GATE_M GATE_H 

20 19 18 17 16 

UVLO H 

UVLO M 

UVLO L 

+ 


2-wire Interface 

OSC 

Sequence 

Delay 

Logic 

Charge 

Pump_M 

Charge 

Pump_H 

Charge 

Pump_L 

Core-up-first 

Core-down-last 

Status Register 

Remote Shutdown Register 

6 7 8 9 10 

GND A1 A2 NC SDA 

15 

14 

13 

12 

GATE_L 

ENS 

GATEH_EN 

READY 

11 SCL 



on page 2-14 

www.xicor.com 


® 

Signal Conditioning/Calibration and Control Products 

X9110 Single Digitally-Controlled (XDCP ) Potentiometer 


• Dual Supply: ± 5V Pot Operation 

• Low Power 

• 1024-tap 

• SPI bus 

• Non-volatile Digital Potentiometer 

Key Features 

• 1024 Resistor Taps – 10-Bit Resolution 

• SPI Serial Interface for write, read, and transfer operations 

of the potentiometer 

• Wiper Resistance, 40Ω Typical @ 5V 

• Endurance: 100,000 data changes per bit per register 

• 14-Lead TSSOP, 15-Lead CSP (Chip Scale Package) 

Call Factory for Availability 

• Dual Supply Version of the X9111 


Description 

The X9110 integrates a single digitally controlled potentiometer 

(XDCP) on a monolithic CMOS integrated circuit. 

The digital controlled potentiometer is implemented using 1023 

resistive elements in a series array. Between each element are 

tap points connected to the wiper terminal through switches. 

The position of the wiper on the array is controlled by the user 

through the SPI bus interface. The potentiometer has associated 

with it a volatile Wiper Counter Register (WCR) and four nonvolatile 

Data Registers that can be directly written to and read by 

the user. The contents of the WCR controls the position of the 

wiper on the resistor array though the switches. Power-up recalls 

the contents of the default data register (DR0) to the WCR. 

The XDCP can be used as a three-terminal potentiometer or as 

a two terminal variable resistor in a wide variety of applications 

including control, parameter adjustments, and signal processing. 

Benefits 

• Digital Programmability 

• Set and Forget Calibration 

• Reliability 

• Dynamic Controls 

— Real time calibration 

— Adaptive response 

• Non-volatile storage and recall of wiper position 

• Power On Recall circuits 

• General purpose EEPROM 

Block Diagram 


TSSOP 

V+ 

S0 

A0 

SCK 

WP 

SI 

V SS 

1 

2 

3 

4 

5 

6 

7 

14 

13 

12 

X9110 11 

10 

9 

8 

V CC 

R L 

R H 

R W 

HOLD 

CS 

V- 

V CC 

R H 

V+ 

SPI 

Bus 

Interface 

Address 

Data 

Status 

Bus 

Interface & 

Control 

Write 

Read 

Transfer 

Control 

Power On Recall 

Wiper Counter 

Register (WCR) 

Data Registers 

(DR0-DR3) 

Wiper 

100KΩ 

1024-taps 

POT 

V SS 

NC 

NC 

R W 

RL 

V- 

* for ordering information refer to page 1-45 


on page 2-1 


® 




• Single Supply 

• Low Power 

• 1024-tap 

• SPI bus 


Key Features 


• SPI Serial Interface for write, read, and transfer 

operations of the potentiometer 


• Endurance: 100,000 Data Changes Per Bit Per Register 

• 14-Lead TSSOP, 15-Lead CSP (Chip Scale Packaging) 


• Single Supply version of the X9110 

Benefits 










Description 







through the SPI bus interface. The potentiometer has associated 

with it a volatile Wiper Counter Register (WCR) and four nonvolatile 

Data Registers that can be directly written to and read by 

the user. The contents of the WCR controls the position of the 

wiper on the resistor array though the switches. Power-up recalls 

the contents of the default data register (DR0) to the WCR. 

The XDCP can be used as a three-terminal potentiometer or as a 

two terminal variable resistor in a wide variety of applications 



TSSOP 

SO 

A0 

NC 

CS 

SCK 

SI 

V SS 

1 

2 

3 

4 

5 

6 

7 

14 

13 

12 

X9111 11 

10 

9 

8 

V CC 

R L 

R H 

R W 

HOLD 

A1 

WP 


Block Diagram 

V CC 

R H 

SPI 

Bus 

Interface 

Address 

Data 

Status 

Bus 

Interface & 

Control 

Write 

Read 

Transfer 

Control 


Wiper Counter 



(DR0-DR3) 

Wiper 

100KΩ 

1024-taps 

POT 

V SS 

NC 

R W 

R L 



on page 2-1 

www.xicor.com 


® 





• Low Power 

• 1024-tap 

• 2-Wire bus 


Key Features 


• 2-Wire Serial Interface for write, read, and transfer operations 



• Endurance: 100,000 Data changes per bit per register 


Call factory for CSP availability 

• Low power CMOS 

Benefits 










Description 







through the 2-wire bus interface. The potentiometer has associated 

with it a volatile Wiper Counter Register (WCR) and four 

non-volatile Data Registers that can be directly written to and 

read by the user. The contents of the WCR controls the position 

of the wiper on the resistor array though the switches. Power-up 

recalls the contents of the default data register (DR0) to 

the WCR. 





TSSOP 

V+ 

NC 

A0 

SCL 

WP 

SDA 

V SS 

1 

2 

3 

4 

5 

6 

7 

14 

13 

12 

X9118 11 

10 

9 

8 

V CC 

R L 

R H 

R W 

NC 

A1 

V- 

Block Diagram 

V CC 

R H 

V+ 

2-Wire 

Bus 

Interface 

Address 

Data 

Status 

Bus 

Interface & 

Control 

Write 

Read 

Transfer 

Control 


Wiper Counter 



(DR0-DR3) 

Wiper 

100KΩ 

1024-taps 

POT 

V SS 

NC 

NC 

R W 

RL 

V- 



on page 2-1 


® 




• Single Supply: 

• Low Power 

• 1024-tap 

• 2-Wire bus 


Key Features 




• Endurance: 100,000 Data Changes Per Bit Per Register 



• Single Supply version of the X9118 

Benefits 










Block Diagram 

Description 







through the 2-wire bus interface. The potentiometer has associated 






the WCR. 





TSSOP 

NC 

A0 

NC 

A2 

SCL 

SDA 

V SS 

1 

2 

3 

4 

5 

6 

7 

14 

13 

12 

X9119 11 

10 

9 

8 

V CC 

R L 

R H 

R W 

NC 

A1 

WP 


V CC 

R H 

2-Wire 

Bus 

Interface 

Address 

Data 

Status 

Bus 

Interface & 

Control 

Write 

Read 

Transfer 

Control 


Wiper Counter 



(DR0-DR3) 

Wiper 

100KW 

1024-taps 

POT 

V SS 

NC 

NC 

R W 

R L 



on page 2-1 

www.xicor.com 


® 


X9250 Quad Digitally Controlled Potentiometers (XDCP ) 



• Low Noise 

• Low Power 

• SPI Bus 

• 256-Tap 


Key Features 

• Four potentiometers in one package 

• 256 resistor taps/pot–0.4% resolution 

• SPI serial interface 

• Wiper resistance, 40Ω typical @ V CC = 5V 

• High reliability 

— Endurance –100,000 data changes per bit per register 

— Register data retention–100 years 

• 24-lead SOIC, 24-lead TSSOP, 24-lead CSP (Chip Scale Package) 

• Dual supply version of X9251 

Benefits 










Block Diagram 

V CC 

V SS 

V+ 

V- 

HOLD 

CS 

SCK 

SO 

SI 

A0 

A1 

WP 

Interface 


Control 

Circuitry 

Data 

8 

R 0 R 1 

Wiper 

R 2 R 3 

(WCR) 

Counter 

Register 

Pot 0 

R 0 R 1 Wiper 

Counter 

Resistor 

Register 

Array 

(WCR) 

Pot 1 

R 2 R 3 

Description 

The X9250 integrates 4 digitally controlled potentiometers 


The digitally controlled potentiometer is implemented using 

255 resistive elements in a series array. Between each element 

are tap points connected to the wiper terminal through switches. 

The position of the wiper on the array is controlled by the 

user through the SPI bus interface. Each potentiometer has 

associated with it a volatile Wiper Counter Register (WCR) and 

4 non-volatile Data Registers (DR0:DR3) that can be directly 

written to and read by the user. The contents of the WCR controls 

the position of the wiper on the resistor array though the 

switches. Power-up recalls the contents of DR0 to the WCR. 


two-terminal variable resistor in a wide variety of applications 



V H0 /R H0 

V L0 /R L0 

V W0 /R W0 

V W1 /R W1 

V H1 /R H1 

V L1 /R L1 

SOIC/TSSOP 

S0 

A0 

V W3 /R W3 

V H3 /R H3 

V L3 /R L3 

V+ 

V CC 

V L0 /R L0 

1 

2 

3 

4 

5 

6 

7 

8 

X9250 

24 

23 

22 

21 

20 

19 

18 

17 

V H0 /R H0 

V W0 /R W0 

9 

10 

16 

15 

CS 11 

14 

WP 12 

13 

HOLD 

SCK 

V L2 /R L2 

V H2 /R L2 

V W2 /R W2 

V– 

V SS 

V W1 /R W1 

V H1 /R H1 

V L1 /R L1 

A1 

SI 

R 0 R 1 Wiper 

V 

Resistor H2 /R H2 

Counter 

Array 

Register 

Pot 2 

(WCR) 

R 2 R 3 V L2 /R L2 

V W2 /R W2 

V W3 /R W3 

R 0 R 1 Wiper 

V 


Counter 

Array 

Register 

Pot 3 

(WCR) 

R 2 R 3 V L3 /R H3 

* for ordering information refer to page 1-45 See Product Family Tree 

on page 2-1 



® 

X9251 Quad Digitally-Controlled (XDCP ) Potentiometer 



• Low Power 

• 256-Tap 

• SPI Bus 


Key Features 

• Quad–Four Separate Potentiometers 




• Wiper Resistance, 100Ω typical @ V CC = 5V 

• Single Supply version of X9250 

• Endurance: 100,000 Data Changes per Bit per Register 

• 24-Lead SOIC, 24-Lead TSSOP, 24-Lead CSP (Chip Scale Package) 


Benefits 










Block Diagram 

Description 







user through the SPI bus interface. Each potentiometer has 


four nonon-volatile Data Registers that can be directly written to 

and read by the user. The contents of the WCR controls the position 

of the wiper on the resistor array though the switches. 

Power-up recalls the contents of the default Data Register (DR0) to 

the WCR. 





SOIC/TSSOP 

SO 

A0 

R W3 

R H3 

R L3 

NC 

V CC 

R L0 

1 

2 

3 

4 

5 

6 

7 

8 

X9251 

24 

23 

22 

21 

20 

19 

18 

17 

R H0 

R W0 

9 

10 

16 

15 

CS 11 14 

WP 12 13 

HOLD 

SCK 

R L2 

R H2 

R W2 

NC 

V SS 

R W1 

R H1 

R L1 

A1 

SI 


V CC 

R H0 

R H1 

R H2 

R H3 

SPI 

Bus 

Interface 

Address 

Data 

Status 

Bus 

Interface & 

Control 

Write 

Read 

Transfer 

Inc/Dec 

Control 


Wiper Counter 



(DR0-DR3) 

V SS 

R W0 

R L0 

R W1 

R L1 R W2 

R L2 R W3 

R L3 

50KΩ or 100KΩ versions 


on page 2-1 

www.xicor.com 


® 


X9252 Quad Digitally-Controlled (XDCP ) Potentiometer 


• Dynamic Calibration: Coarse & Fine Tuning 

— Serial 2-Wire bus 

— Up/Down Interface 


• Low Power 

• Quad 256-tap 

Key Features 

• Quad Solid State Potentiometer 

• 2-wire Serial Interface for Write, Read, and Transfer Operations 

of the Potentiometer 

• Up/Down Interface for Individual Potentiometers 

• Non-Volatile Storage of Wiper Positions 

• Power On Recall. Loads Saved Wiper Position on Power-Up 

• V CC : 2.7V to 5.5V Operation 

• 2.8kΩ, 10kΩ, 50kΩ, 100kΩ Version of Total Pot Resistance 

Benefits 










Block Diagram 

Description 





tap points connected to wiper terminals through switches. The 

position of each wiper on the array is controlled by the user 

through the Up/Down or 2-wire bus interface. Each potentiometer 

wiper has associated with it a volatile Wiper Counter Register 

(WCR) and four non-volatile Data Registers that can be directly 

written to and read by the user. The contents of the WCR 

controls the position of the wiper on the resistor array though 

the switches. Powerup recalls the contents of the default data register 

(DR00, DR10, DR20, DR30 ) to each WCR, respectively. 

The DCP can be used as a three-terminal potentiometer or as a two 

terminal variable resistor network in a wide variety of applications 

including the programming of bias voltages, and implementing 

ladder networks and three resistor programmable networks. 


TSSOP 

DS0 1 

24 DS1 

A0 

R W3 

2 

3 

23 

22 

SCL 

R L2 

R H3 4 

21 R H2 

R L3 5 

20 R W2 

U/D 6 

19 CS 

X9252 

V CC 7 

18 V SS 

R L0 8 

17 R W1 

R H0 

RW0 

9 

10 

16 

15 

R H1 

R L1 

A2 11 

14 A1 

WP 12 13 SDA 

V CC 

R H0 

R H1 

R H2 

R H3 

A2 

A1 

A0 

SDA 

SCL 

DS0 

2-Wire 

Interface 

Up-Down 

Interface 

POWER UP, 

INTERFACE 

CONTROL 

AND 

STATUS 

WCR0 

DR00 

DR01 

DR02 

DR03 

DCP0 

WCR1 

DR10 

DR11 

DR12 

DR13 

DCP1 

WCR2 

DR20 

DR21 

DR22 

DR23 

DCP2 

WCR3 

DR30 

DR31 

DR32 

DR33 

DCP3 

DS1 

CS 

U/D 

V SS 

WP 

R W0 

R L0 

R W1 

R L1 

R W2 

R L2 

R W3 

R L3 




on page 2-1 

www.xicor.com

® 


X9258 Quad Digital Controlled Potentiometers (XDCP ) 



• Low Noise 

• Low Power 

• 2-Wire Bus 

• 256-Tap 


Key Features 



• 2-wire serial interface 

• Wiper resistance, 40Ω typical @ V+ = 5V, V- = -5V 

• High reliability 

— Endurance – 100,000 data changes per bit per register 

— Register data retention – 100 years 

• 24-lead SOIC, 24-lead TSSOP, 24-lead CSP (Chip Scale Package) 

• Dual supply version of X9259 

Benefits 










Description 







user through the 2-wire bus interface. Each potentiometer has 


4 non-volatile Data Registers (DR0:DR3) that can be directly 

written to and read by the user. The contents of the WCR controls 

the position of the wiper on the resistor array though the 

switches. Power-up recalls the contents of DR0 to the WCR. 


two-terminal variable resistor in a wide variety of applications 



SOIC/TSSOP 

NC 

A0 

V W3 /R W3 

V H3 /R H3 

V L3 /R L3 

V+ 

V CC 

V L0 /R L0 

1 

2 

3 

4 

5 

6 

7 

8 

X9258 

24 

23 

22 

21 

20 

19 

18 

17 

V H0 /R H0 

V W0 /R W0 

9 

10 

16 

15 

A2 11 14 

WP 12 13 

A3 

SCL 

V L2 /R L2 

V H2 /R H2 

V W2 /R W2 

V– 

V SS 

V W1 /R W1 

V H1 /R H1 

V L1 /R L1 

A1 

SDA 


Block Diagram 

V CC 

V SS 

V+ 

V- 

WP 

SCL 

SDA 

A0 

A1 

A2 

A3 

Interface 


Control 

Circuitry 

Data 

8 

R 0 R 1 

Wiper 

R 2 R 3 

(WCR) 

Counter 

Register 

Pot 0 

R 0 R 1 Wiper 

Counter 

Resistor 

Register 

Array 

(WCR) 

Pot 1 

R 2 R 3 

V H0 /R H0 

V L0 /R L0 

V W0 /R W0 

V W1 /R W1 

V H1 /R H1 

V L1 /R L1 

R 0 R 1 Wiper 

V 


Counter 

Array 

Register 

Pot 2 

(WCR) 

R 2 R 3 V L2 /R L2 

V W2 /R W2 

V W3 /R W3 

R 0 R 1 Wiper 

V 


Counter 

Array 

Register 

Pot 3 

(WCR) 

R 2 R 3 V L3 /R H3 


www.xicor.com 


on page 2-1 


® 


X9259 Quad Digitally-Controlled (XDCP ) Potentiometers 



• Low Power 

• 256-Tap 



Key Features 

• Quad–Four separate potentiometers 






• Single Supply Version of X9258 

• 24-Lead SOIC, 24-Lead TSSOP, 24-Lead CSP (Chip Scale Package) 


Benefits 










Block Diagram 

Description 







user through the 2-Wire bus interface. Each potentiometer has 


four non-volatile Data Registers that can be directly written to 

and read by the user. The contents of the WCR controls the 

position of the wiper on the resistor array though the switches. 

Power-up recalls the contents of the default Data Register 

(DR0) to the WCR. 




Pin Configuration. 

SOIC/TSSOP 

NC1 

A0 

R W3 

R H3 

R L3 

NC 

V CC 

R L0 

1 

2 

3 

4 

5 

6 

7 

8 

X9259 

24 

23 

22 

21 

20 

19 

18 

17 

R H0 

R W0 

9 

10 

16 

15 

A2 11 14 

WP 12 13 

A3 

SCL 

R L2 

R H2 

R W2 

NC 

V SS 

R W1 

R H1 

R L1 

A1 

SDA 

V CC 

R H0 

R H1 

R H2 

R H3 

2-Wire 

Bus 

Interface 

Address 

Data 

Status 

Bus 

Interface & 

Control 

Write 

Read 

Transfer 

Inc/Dec 

Control 


Wiper Counter 



16 Bytes 

V SS 

R W0 

R L0 

R W1 

R L1 R W2 

R L2 R W3 

R L3 

50KΩ or 100KΩ versions 


on page 2-1 


www.xicor.com

® 





• Low Power 

• 256-tap 

• SPI bus 


Key Features 

• 256 Resistor Taps 







Benefits 










Description 







user through the SPI bus interface. The potentiometer has 


four non-volatile Data Registers that can be directly written to 

and read by the user. The contents of the WCR controls the 

position of the wiper on the resistor array though the switches. 

Power-up recalls the contents of the default data register (DR0) 

to the WCR. 





TSSOP 

S0 

A0 

NC 

CS 

SCK 

SI 

V SS 

1 

2 

3 

4 

5 

6 

7 

14 

13 

12 

X9271 11 

10 

9 

8 

V CC 

R L 

R H 

R W 

HOLD 

A1 

WP 


Block Diagram 

V CC 

R H 

SPI 

Bus 

Interface 

Address 

Data 

Status 

Bus 

Interface & 

Control 

Write 

Read 

Transfer 

Inc/Dec 

Control 


Wiper Counter 



16 Bytes 

50KΩ and 100KΩ 

256-taps 

POT 

V SS 

R W 

R L 



on page 2-1 

www.xicor.com 


® 





• Low Power 

• 256-tap 



Key Features 

• 256 Resistor Taps 



• Wiper Resistance, 100Ω typical @ 5V 




Benefits 










Description 



The digitally controlled potentiometer is implemented using 255 

resistive elements in a series array. Between each element are tap 

points connected to the wiper terminal through switches. The 

position of the wiper on the array is controlled by the user 

through the 2-Wire bus interface. The potentiometer has associated 






the WCR. 





TSSOP 

NC 

A0 

NC 

A2 

SCL 

SDA 

V SS 

1 

2 

3 

4 

5 

6 

7 

14 

13 

12 

X9279 11 

10 

9 

8 

V CC 

R L 

R H 

R W 

A3 

A1 

WP 

Block Diagram 

V CC 

R H 

2-Wire 

Bus 

Interface 

Address 

Data 

Status 

Bus 

Interface & 

Control 

Write 

Read 

Transfer 

Inc/Dec 

Control 


Wiper Counter 



16 Bytes 

wiper 

50KΩ and 100KΩ 

256-taps 

POT 

V SS 

R W 

R L 


on page 2-1 


www.xicor.com

® 


X9318 8V Digital Potentiometer (Non-volatile) 


• Up/Down Digital Potentiometer works up to 8V 

• Non-volatile wiper with 100-tap and 10KΩ total resistance 

Key Features 

• Non-volatile storage of wiper position 

• 3-wire Up/Down digital interface 

• Power On Recall of wiper position 

• 8 pin DIP and SOIC 

• Excellent Linearity 

Benefits 










Description 

The Xicor X9318 is a digitally controlled potentiometer (XDCP). 

The device consists of a resistor array, wiper switches, a control 

section, and non-volatile memory. The wiper position is controlled 

by a 3-wire interface. 

The potentiometer is implemented by a resistor array composed 

of 99 resistive elements and a wiper switching network. Between 

each element and at either end are tap points accessible to the 

wiper terminal. The position of the wiper element is controlled 

by the CS, U/D, and INC inputs. The position of the wiper can 

be stored in non-volatile memory and then be recalled upon a 

subsequent power-up operation. 

The device can be used as a three-terminal potentiometer for 

voltage control or as a two-terminal variable resistor for current 

control in a wide variety of applications. 


INC 

U/D 

R H 

V SS 

1 

2 

3 

4 

DIP/SOIC 

X9318 

8 

7 

6 

5 

V CC 

CS 

R L 

R W 


Block Diagram 

V CC (Supply Voltage) 

U/D 

INC 

CS 

Up/Down 

Counter 

99 

98 

R H 

Up/Down 

(U/D) 

Increment 

(INC) 

Device Select 

(CS) 

Control 


Memory 

V SS (Ground) 

General 

R H 

R W 

R L 

V CC 

V SS 

7-Bit 

Nonvolatile 

Memory 

Store and 

Recall 

Control 

Circuitry 

97 

96 

One of 

One Hundred 

Decoder 

2 

1 

0 

Wiper 

Switches 

Resistor 

Array 

R L 

R W 

Detailed 


on page 2-1 

www.xicor.com 


® 


X9319 10V Digital Potentiometer (Non-volatile) 


• Up/Down Digital Potentiometer works up to 10V 

• Non-volatile wiper with 100-tap 10kΩ and 50kΩ total resistance 

Key Features 

• Non-volatile storage of wiper position 

• 3-wire Up/Down digital interface 

• Power On Recall of wiper position 

• 8 pin DIP and SOIC 


Benefits 










Description 






of 99 resistive elements and a wiper switching network. Between 

each element and at either end are tap points accessible to the 

wiper terminal. The position of the wiper element is controlled 

by the CS, U/D, and INC inputs. The position of the wiper can 



The device can be used as a three-terminal potentiometer for 

voltage control or as a two-terminal variable resistor for current 

control in a wide variety of applications. 


INC 

U/D 

R H 

V SS 

1 

2 

3 

4 

DIP/SOIC 

X9319 

8 

7 

6 

5 

V CC 

CS 

R L 

R W 

Block Diagram 


U/D 

INC 

CS 

Up/Down 

Counter 

99 

98 

R H 

Up/Down 

(U/D) 

Increment 

(INC) 

Device Select 

(CS) 

Control 


Memory 

V SS (Ground) 

General 

R H 

R W 

R L 

V CC 

V SS 

7-Bit 

Nonvolatile 

Memory 


Recall 

Control 

Circuitry 

97 

96 


One Hundred 

Decoder 

2 

1 

0 

Wiper 

Switches 

Resistor 

Array 

R L 

R W 

Detailed 


on page 2-1 



® 

X93154 Digitally Controlled Potentiometer (XDCP ) 


• 32-tap 


• Low Power 

Key Features 

• Solid State Potentiometer 

• Up/Down Interface 


• Power on Recall Loads Saved Wiper Position on Power-Up 

• V CC = 2.7V to 3.3V Operation 

• R TOTAL = 50kΩ 

• Packages 

— 8-lead MSOP, FCP (Flip-Chip Package) 

Description 



section, and non-volatile memory. The wiper position is 

controlled by an Up/Down interface. 


of 31 resistive elements and a wiper switching network. The 

position of the wiper element is controlled by the CS, U/D, and 

INC inputs. The position of the wiper can be stored in nonvolatile 

memory and then be recalled upon a subsequent powerup 

operation. 

The device is connected as a two-terminal variable resistor and 

can be used in a wide variety of applications including: 


Benefits 

• Wide Range of Sizes for Versatile Small Form Factor 

• Low Power 





• Bias and Gain Control 

• LCD Contrast Adjustment 


INC 1 

U/D 2 

R H 3 

V SS 4 

MSOP 

X93154 

8 

7 

6 

5 

V CC 

CS 

R L 

NC* 

*NC can be left unconnected, or connected 

to any voltage between V SS and V CC . 

Block Diagram 

Also available in Flip-Chip 


30K 

U/D 

INC 

CS 

5-Bit 

Up/Down 

Counter 

31 

30 

R H 

29 

Up/Down 

(U/D) 

Increment 

(INC) 

Device Select 

(CS) 

Control 


Memory 

R H 

5-Bit 

Nonvolatile 

Memory 


Control Recall 

Circuitry 

28 


Thirty Two 

Decoder 

2 

Transfer 

Gates 

Resistor 

Array 

R L 

1 

V CC 

0 

V SS (Ground) 

V SS 

R L 

General 

Detailed 


on page 2-1 


www.xicor.com 



® 




• Low Power 

• 32 Tap 

• 2-terminal Potentiometer 


Key Features 

• 32 wiper tap points per potentiometer 

—Wiper position stored in non-volatile memory and recalled 

on power-up 

• 31 resistive elements per potentiometer 

— Temperature compensated 

— Terminal voltage, 0 to V CC 


• 8-lead MSOP 

Description 







position of the wiper element is controlled by the CS, U/D, 

and INC inputs. The position of the wiper can be stored in 

non-volatile memory and then be recalled upon a subsequent 

power-up operation. 

The device is connected as a two-terminal variable resistor and 

can be used in a wide variety of applications including: 



Benefits 

• Digitally Programmable 



• Dymanic Controls 




INC 1 

U/D 2 

R H 3 

V SS 4 

MSOP 

X93155 

8 

7 

6 

5 

V CC 

CS 

R L 

NC 

Block Diagram 



30K 

U/D 

INC 

CS 

5-Bit 

Up/Down 

Counter 

31 

30 

R H 

Up/Down 

(U/D) 

Increment 

(INC) 

Device Select 

(CS) 

Control 


Memory 

R H 

5-Bit 

Nonvolatile 

Memory 



Circuitry 

29 

28 


Thirty 

Two 

Decoder 

2 

Transfer 

Gates 

Resistor 

Array 

R L 

1 

V SS 

(Ground) 

V CC 

0 

General 

V SS 

R L 

Detailed 



® 




• Low Power 

• 32 Tap 




Key Features 

• 32 wiper tap points 

—Wiper position stored in non-volatile memory 

and recalled on power-up 

• 31 resistive elements 




• Endurance 100,000 data changes per bit 

• 8-lead MSOP, FCP (Flip-Chip Package) 

Benefits 

• Digitally Programmable 



• Dymanic Controls 



Block Diagram 

Description 

The Xicor X93156 is a three-terminal digitally controlled potentiometer 

(XDCP). The device consists of a resistor array, wiper 

switches, a control section, and non-volatile memory. The 

wiper position is controlled by an Up/Down interface. 



position of the wiper element is controlled by the CS, U/D, and 

INC inputs. The position of the wiper can be stored in nonvolatile 

memory and then be recalled upon a subsequent 

power-up operation. 

The device can be used as a three-terminal potentiometer or as 

a two-terminal variable resistor in a wide variety of applications 

including the programming of bias voltages, LCD brightness 

and contrast control as well as the implemetnation of ladder 

networks. 


INC 1 

U/D 2 

R H 3 

V SS 4 


MSOP 

X93156 

8 

7 

6 

5 

V CC 

CS 

R L 

R W 



30K 

U/D 

INC 

CS 

5-Bit 

Up/Down 

Counter 

31 

30 

R H 

Up/Down 

(U/D) 

Increment 

(INC) 

Device Select 

(CS) 

Control 


Memory 

R H 

R W 

5-Bit 

Nonvolatile 

Memory 



Circuitry 

29 

28 


Thirty 

Two 

Decoder 

2 

Transfer 

Gates 

Resistor 

Array 

R W 

R L 

1 

V SS 

(Ground) 

V CC 

0 

General 

V SS 

R L 

Detailed 

www.xicor.com 



® 



• Dual 32-tap XDCP in a Two-Terminal Variable 

Resistor Configuration 


• Low Power 

Key Features 

• Dual Solid State Potentiometers 

• Up/Down Digital Interface 


• Power on Recall Loads Saved Wiper Position on Power-Up 

• V CC = 3V ± 10% 

• R TOTAL = 50kΩ 

• 14-lead TSSOP Package 

Benefits 

• Wide Range of Sizes for Versatile Small Form Factor 





• Non-Volatile Storage and Recall of Wiper Positions 

Block Diagram 

Description 

The Xicor X93254 is a dual digitally controlled potentiometer 

(XDCP). The device consists of two resistor arrays, wiper switches, 

a control section, and non-volatile memory. The wiper positions 

are controlled by independent Up/Down interfaces. 


of 31 resistive elements and a wiper switching network. 

The position of each wiper element is controlled by a set of 

independent CS, U/D, and INC inputs. The position of the wiper 

can be stored in non-volatile memory and then be recalled upon 

a subsequent power-up operation. 

Each potentiometer is connected as a two-terminal variable 

resistor and can be used in a wide variety of applications 

including: 




DNC* 1 

R L1 2 

CS 1 3 

INC 2 4 

U/D 5 2 

6 

R H2 

7 

V SS 

*Do not connect. 

TSSOP 

X93254 

14 

13 

12 

11 

10 

9 

8 

R H1 

U/D 1 

INC 1 

V CC 

CS 2 

R L2 

DNC* 


30K 

30K 

R H1 

U/D 

INC 

CS 

5-Bit 

Up/Down 

Counter 

31 

30 

R H 

Up/Down 

(U/D 1 ) 

29 

Increment 

(INC 1 ) 

Device Select 

(CS 1 ) 

Up/Down 

(U/D 2 ) 

Increment 

(INC 2 ) 

Control 


Memory 

Control 


Memory 

R L1 

R H2 

R L2 

5-Bit 

Nonvolatile 

Memory 



Circuitry 

28 


Thirty Two 

Decoder 

2 

1 

Transfer 

Gates 

Resistor 

Array 

Device Select 

(CS 2 ) 

V CC 

V SS 

0 

R L 

General 

Detailed Single Potentiometer (1 of 2 devices) 


® 





• Low Power 

• 32 Tap 



Key Features 

• Dual solid-state potentiometers 

• Individual Up/Down interfaces 


— Wiper position stored in non-volatile memory 







• 14-lead TSSOP 

Benefits 






• Power On Recall Circuits 

Description 


(XDCP). The device consists of two resistor arrays, wiper 

switches, a control section, and non-volatile memory. The 

wiper positions are controlled by individual Up/Down interfaces. 

A potentiometer is implemented by a resistor array composed 


position of each wiper element is controlled by a set of independent 

CS, U/D, and INC inputs. The position of the wiper can 



Each potentiometer is connected as a two-terminal variable 


including: 




NC* 

1 

R L1 2 

CS 1 3 

INC 2 4 

U/D 2 5 

R H2 6 

V SS 7 

TSSOP 

X93255 

14 

13 

12 

11 

10 

9 

8 

R H1 

U/D 1 

INC 1 

V CC 

CS 2 

R L2 

NC* 


Block Diagram 


* NC can be left unconnected, or connected 

to any voltage between V SS and V CC . 


30K 

R H1 

U/D 1 

INC 1 

CS 1 

5-Bit 

Up/Down 

Counter 

31 

30 

R H1 

Up/Down 

(U/D 1 & U/D 2 ) 

Increment 

(INC 1 & INC 2 ) 

Device Select 

(CS 1 & CS 2 ) 

Control 


Memory 

R L1 

5-Bit 

Nonvolatile 

Memory 



Circuitry 

29 

28 


Thirty 

Two 

Decoder 

2 

Transfer 

Gates 

Resistor 

Array 

R L2 

1 

V SS 

(Ground) 

R H2 

0 

V CC 

V SS 

R L1 

General Description 

Detailed Single Potentiometer Description 

www.xicor.com 


® 





• 32 Tap 

• Low Power 



Key Features 

• Dual solid-state potentiometers 









• 14-lead TSSOP 

Benefits 







Description 


(XDCP). The device consists of two resistor arrays, wiper switches, 

a control section, and non-volatile memory. The wiper positions 

are controlled by individual Up/Down interfaces. 

A potentiometer is implemented by a resistor array composed 


position of each wiper element is controlled by a set of independent 

CS, U/D, and INC inputs. The position of the wiper can 



Each potentiometer is connected as a three-terminal variable 


including: 




TSSOP 

R W1 

R L1 

CS 1 

INC 2 

U/D 2 

R H2 

V SS 

1 

2 

3 

4 

5 

6 

7 

X93256 

14 

13 

12 

11 

10 

9 

8 

R H1 

U/D 1 

INC 1 

V CC 

CS 2 

R L2 

R W2 


Block Diagram 


30K 

R H1 

U/D 1 

INC 1 

CS 1 

5-Bit 

Up/Down 

Counter 

31 

30 

R H1 

R W1 

Up/Down 

(U/D 1 & U/D 2 ) 

Increment 

(INC 1 & INC 2 ) 

Device Select 

(CS 1 & CS 2 ) 

Control 


Memory 

R L1 

R W2 

5-Bit 

Nonvolatile 

Memory 



Circuitry 

29 

28 


Thirty 

Two 

Decoder 

2 

Transfer 

Gates 

Resistor 

Array 

R W 

R L2 

1 

V SS 

(Ground) 

R H2 

0 

V CC 

V SS 

R L1 

General Description 

Detailed Single Potentiometer Description (1 of 2 devices) 


® 


X9455 Dual Two-wiper Digitally-Controlled (XDCP ) Potentiometer 


• Dynamic Calibration: Coarse & Fine Tuning 

— Serial 2-Wire bus 

— Up/Down Interface 


• Low Power 

• Dual Two-wiper 256-tap 

Key Features 

• Dual Two-wiper Solid State Potentiometer 

• 256 Resistor taps/pot–0.4% resolution 

• 2-wire Serial Interface for Write, Read, and Transfer 

Operations of the Potentiometer 

• Power On Recall. Loads Saved Wiper Position on Power-Up 

• 2.8kΩ,10kΩ, 50kΩ, 100kΩ Version of Total Pot Resistance 

• Endurance: 100, 000 Data Changes per Bit per Register 

• 24-Lead TSSOP 

Benefits 










Block Diagram 

Description 


(XDCP) with dual wipers on each potentiometer on a monolithic 

CMOS integrated circuit. 



are tap points connected to wiper terminals through switches. 

The position of each wiper on the array is controlled by the user 

through the Up/Down or 2-wire bus interface. Each potentiometer 

wiper has associated with it two volatile Wiper Counter 

Register (WCR) and each WCR has associated with it four nonvolatile 

Data Registers that can be directly written to and read 

by the user. The contents of the WCR controls the position of 

the wiper on the resistor array though the switches. The contents 

of the default data registers (DR0A, DR0B, DR1A, DR1B ) 

are loaded into the WCR on power-up. 

The DCP can be used as a four-terminal potentiometer or as a 

four-terminal variable resistor network in a wide variety of 

applications including the programming of bias voltages, window 

comparators, and three resistor programmable networks. 


DS0 

A0 

RW0B 

NC 

NC 

U/D 

Vcc 

RL0 

RH0 

RW0A 

A2 

WP 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

TSSOP 

X9455 

24 

23 

22 

21 

20 

19 

18 

17 

16 

15 

14 

13 

DS1 

SCL 

RL1 

RH1 

RW1A 

CS 

Vss 

RW1B 

NC 

NC 

A1 

SDA 


V CC 

R H0 

R H1 

A2 

A1 

A0 

SDA 

SCL 

DS0 

2-wire 

Interface 

Up/Down 

Interface 

POWERUP, 

INTERFACE 

CONTROL AND 

STATUS 

WCR0A 

DR0A0 

DR0A1 

DR0A2 

DR0A3 

WCR0B 

DR0B0 

DR0B1 

DR0B2 

DR0B3 

DCP0 

WCR1A WCR1B 

DR1A0 DR1B0 

DR1A1 DR1B1 

DR1A2 DR1B2 

DR1A3 DR1B3 

DCP1 

DS1 

CS 

U/D 

V SS 

WP 

R W0A R W0B 

R L0 

R W1A R W1B 

R L1 



on page 2-1 

www.xicor.com 


® 


X9460 Audio Logarithmic Digitally-Controlled Potentiometers with Zero Amplitude Wiper Switching 


• X9460 is a monolithic CMOS IC that incorporating two logarithmically 

tapered non-volatile DCPs 

• The XDCPs consist of a string of 31 polycrystalline resistors (total 

33K) with switches to connect the wiper to any of the taps 

• A 2-wire interface controls wiper position, or an up/down control 

can be programmed to change both pots or a single pot one position 

at a time 

• The DCPs are normally connected as voltage dividers for audio 

control applications 

Key Features 

• Dual ±2.7 to ±5V supply operation 

• Wiper switching at zero wiper voltage 

• Low 3µA standby current 

• Dual DCP control for left and right channels 

• 0 to -62dB volume control in 32 steps 

• -100dB crosstalk rejection 

• -120dB signal-noise ratio 

• Slave address 

Benefits 

• Fits wide variety of applications 

• Noise-free changes in volume 

• Ideal for portable audio products 

• Versatile stereo volume/fader/mute controls 

• Wide dynamic range 

• Qualifies for high fidelity equipment 

• Design for 2 to 8 channels using only 2-wire control 

Description 

The X9460 integrates two digitally controlled potentiometer 

(XDCP) on a monolithic CMOS integrated circuit. The two 

XDCPs can be used as stereo gain controls in audio applications. 

Read/Write operations can directly access each channel 

independently or both channels simultaneously. Increment/ 

Decrement can adjust each channel independently or both 

channels simultaneously. 

The X9460 contains a zero amplitude wiper switching circuit 

that delays wiper changes until the next zero crossing of the 

audio signal. 

The digitally controlled potentiometer is implemented using 31 

polysilicon resistors in a log array. Between each of the resistors 

are tap points connected to the wiper terminal through 

switches. The XDCPs are designed to minimize wiper noise to 

avoid pops and clicks during audio volume transitions. The 

position of the wiper on the array is controlled by the user 

through the 2-wire serial bus interface. 

Power up reset the wiper to the mute position. 


TSSOP 

SDA 1 14 

V SS 5 10 

SCL 2 13 

V CC 3 12 

V+ 4 X9460 11 

A1 6 9 

A0 7 8 

V- 

R H-right 

R L-right 

R W-right 

R H-left 

R L-left 

R W-left 

Block Diagram 

V CC V+ 

SCL 

SDA 

A0 

A1 

INTERFACE 

AND 

CONTROL 

CIRCUITRY 

Power On 

Recall 

mute 

8 

DATA 

WIPER 

COUNTER 

REGISTER 

(WCR) 

POT Left 

R H-Left 

R L-Left 

R W-Left 

R W-Right 

WIPER 

COUNTER 

REGISTER 

(WCR) 

R H-Right 

R L-Right 

POT Right 


V SS 

V- 


on page 2-1 



® 

XDCP Product Guide Ordering Information 


Part Number # of DCPs # of taps Resistance (kohm) Voltage Supply Range Package Operating Temperature Range 

X9110TV14 single 1024 100 5 TSSOP - 14 0C to 70C 

X9110TV14-2.7 single 1024 100 2.7-5 TSSOP - 14 0C to 70C 

X9110TV14I single 1024 100 5 TSSOP - 14 -40C to +85C 

X9110TV14I-2.7 single 1024 100 2.7-5 TSSOP - 14 -40C to +85C 

X9111TB15 single 1024 100 5 CSP - 15 0C to 70C 

X9111TB15I-2.7 single 1024 100 2.7-5 CSP - 15 -40C to +85C 













X9221AYPI dual 64 2 5V±10% PDIP-20 -40C to +85C 

X9221AWPI dual 64 10 5V±10% PDIP-20 -40C to +85C 

X9221AUPI dual 64 50 5V±10% PDIP-20 -40C to +85C 

X9221AYP dual 64 2 5V±10% PDIP-20 0C to +70C 

X9221AWP dual 64 10 5V±10% PDIP-20 0C to +70C 

X9221AUP dual 64 50 5V±10% PDIP-20 0C to +70C 

X9221AYSI dual 64 2 5V±10% SOIC-20 -40C to +85C 

X9221AWSI dual 64 10 5V±10% SOIC-20 -40C to +85C 

X9221AUSI dual 64 50 5V±10% SOIC-20 -40C to +85C 

X9221AYS dual 64 2 5V±10% SOIC-20 0C to +70C 

X9221AWS dual 64 10 5V±10% SOIC-20 0C to +70C 

X9221AUS dual 64 50 5V±10% SOIC-20 0C to +70C 

X9241AYPI quad 64 2 5V±10% PDIP-20 -40C to +85C 

X9241AYSI quad 64 2 5V±10% SOIC-20 -40C to +85C 

X9241AYVI quad 64 2 5V±10% TSSOP-20 -40C to +85C 

X9241AYP quad 64 2 5V±10% PDIP-20 0C to +70C 

X9241AYS quad 64 2 5V±10% SOIC-20 0C to +70C 

X9241AYV quad 64 2 5V±10% TSSOP-20 0C to +70C 

X9241AWPI quad 64 10 5V±10% PDIP-20 -40C to +85C 

X9241AWSI quad 64 10 5V±10% SOIC-20 -40C to +85C 

X9241AWVI quad 64 10 5V±10% TSSOP-20 -40C to +85C 

X9241AWP quad 64 10 5V±10% PDIP-20 0C to +70C 

X9241AWS quad 64 10 5V±10% SOIC-20 0C to +70C 

X9241AWV quad 64 10 5V±10% TSSOP-20 0C to +70C 

X9241AUPI quad 64 50 5V±10% PDIP-20 -40C to +85C 

X9241AUSI quad 64 50 5V±10% SOIC-20 -40C to +85C 

X9241AUVI quad 64 50 5V±10% TSSOP-20 -40C to +85C 

X9241AUP quad 64 50 5V±10% PDIP-20 0C to +70C 

X9241AUS quad 64 50 5V±10% SOIC-20 0C to +70C 

X9241AUV quad 64 50 5V±10% TSSOP-20 0C to +70C 

X9241AMPI quad 64 2, 10, 10, 50 5V±10% PDIP-20 -40C to +85C 

X9241AMSI quad 64 2, 10, 10, 50 5V±10% SOIC-20 -40C to +85C 

X9241AMVI quad 64 2, 10, 10, 50 5V±10% TSSOP-20 -40C to +85C 

X9241AMP quad 64 2, 10, 10, 50 5V±10% PDIP-20 0C to +70C 

X9241AMS quad 64 2, 10, 10, 50 5V±10% SOIC-20 0C to +70C 

X9241AMV quad 64 2, 10, 10, 50 5V±10% TSSOP-20 0C to +70C 

X9250TB24 quad 256 100 5 CSP - 24 0C to 70C 

X9250TB24-2.7 quad 256 100 2.7-5 CSP - 24 0C to 70C 

X9250TB24I quad 256 100 5 CSP - 24 -40C to +85C 


www.xicor.com 



® 




X9250TB24I-2.7 quad 256 100 2.7-5 CSP - 24 -40C to +85C 

X9250TS24 quad 256 100 5 SOIC - 24 0C to 70C 

X9250TS24-2.7 quad 256 100 2.7-5 SOIC - 24 0C to 70C 

X9250TS24I quad 256 100 5 SOIC - 24 -40C to +85C 

X9250TS24I-2.7 quad 256 100 2.7-5 SOIC - 24 -40C to +85C 

X9250TV24 quad 256 100 5 TSSOP - 24 0C to 70C 

X9250TV24-2.7 quad 256 100 2.7-5 TSSOP - 24 0C to 70C 

X9250TV24I quad 256 100 5 TSSOP - 24 -40C to +85C 

X9250TV24I-2.7 quad 256 100 2.7-5 TSSOP - 24 -40C to +85C 

X9250UB24 quad 256 50 5 CSP - 24 0C to 70C 

X9250UB24-2.7 quad 256 50 2.7-5 CSP - 24 0C to 70C 

X9250UB24I quad 256 50 5 CSP - 24 -40C to +85C 

X9250UB24I-2.7 quad 256 50 2.7-5 CSP - 24 -40C to +85C 

X9250US24 quad 256 50 5 SOIC - 24 0C to 70C 

X9250US24-2.7 quad 256 50 2.7-5 SOIC - 24 0C to 70C 

X9250US24I quad 256 50 5 SOIC - 24 -40C to +85C 

X9250US24I-2.7 quad 256 50 2.7-5 SOIC - 24 -40C to +85C 

X9250UV24 quad 256 50 5 TSSOP - 24 0C to 70C 

X9250UV24-2.7 quad 256 50 2.7-5 TSSOP - 24 0C to 70C 

X9250UV24I quad 256 50 5 TSSOP - 24 -40C to +85C 

X9250UV24I-2.7 quad 256 50 2.7-5 TSSOP - 24 -40C to +85C 













X9251UB24 quad 256 50 5 CSP - 24 0C to 70C 

X9251UB24-2.7 quad 256 50 2.7-5 CSP - 24 0C to 70C 

X9251UB24I quad 256 50 5 CSP - 24 -40C to +85C 

X9251UB24I-2.7 quad 256 50 2.7-5 CSP - 24 -40C to +85C 

X9251US24 quad 256 50 5 SOIC - 24 0C to 70C 

X9251US24-2.7 quad 256 50 2.7-5 SOIC - 24 0C to 70C 

X9251US24I quad 256 50 5 SOIC - 24 -40C to +85C 

X9251US24I-2.7 quad 256 50 2.7-5 SOIC - 24 -40C to +85C 

X9251UV24 quad 256 50 5 TSSOP - 24 0C to 70C 


X9251UV24I quad 256 50 5 TSSOP - 24 -40C to +85C 


X9252YV24-2.7 quad 256 2.8 2.7-5 TSSOP - 24 0C to 70C 

X9252YV24I-2.7 quad 256 2.8 2.7-5 TSSOP - 24 -40C to +85C 

X9252WV24-2.7 quad 256 10 2.7-5 TSSOP - 24 0C to 70C 

X9252WV24I-2.7 quad 256 10 2.7-5 TSSOP - 24 -40C to +85C 










www.xicor.com


® 












X9258UB24 quad 256 50 2.7-5 CSP - 24 0C to 70C 

X9258UB24-2.7 quad 256 50 5 CSP - 24 0C to 70C 

X9258UB24I quad 256 50 2.7-5 CSP - 24 -40C to +85C 

X9258UB24I-2.7 quad 256 50 5 CSP - 24 -40C to +85C 

X9258US24 quad 256 50 2.7-5 SOIC - 24 0C to 70C 

X9258US24-2.7 quad 256 50 5 SOIC - 24 0C to 70C 

X9258US24I quad 256 50 2.7-5 SOIC - 24 -40C to +85C 

X9258US24I-2.7 quad 256 50 5 SOIC - 24 -40C to +85C 

X9258UV24 quad 256 50 2.7-5 TSSOP - 24 0C to 70C 

X9258UV24-2.7 quad 256 50 5 TSSOP - 24 0C to 70C 

X9258UV24I quad 256 50 2.7-5 TSSOP - 24 -40C to +85C 

X9258UV24I-2.7 quad 256 50 5 TSSOP - 24 -40C to +85C 









X9259UB24 quad 256 50 2.7-5 CSP - 24 0C to 70C 

X9259UB24-2.7 quad 256 50 5 CSP - 24 0C to 70C 

X9259UB24I quad 256 50 2.7-5 CSP - 24 -40C to +85C 

X9259UB24I-2.7 quad 256 50 5 CSP - 24 -40C to +85C 

X9259US24 quad 256 50 2.7-5 SOIC - 24 0C to 70C 

X9259US24-2.7 quad 256 50 5 SOIC - 24 0C to 70C 

X9259US24I quad 256 50 2.7-5 SOIC - 24 -40C to +85C 

X9259US24I-2.7 quad 256 50 5 SOIC - 24 -40C to +85C 

X9259UV24 quad 256 50 2.7-5 TSSOP - 24 0C to 70C 

X9259UV24-2.7 quad 256 50 5 TSSOP - 24 0C to 70C 

X9259UV24I quad 256 50 2.7-5 TSSOP - 24 -40C to +85C 

X9259UV24I-2.7 quad 256 50 5 TSSOP - 24 -40C to +85C 

X9260US24I-2.7 dual 256 50 2.7V to 5.5V SOIC-24 -40º C to +85º C 

X9260US24I dual 256 50 5V±10% SOIC-24 -40º C to +85º C 

X9260US24-2.7 dual 256 50 2.7V to 5.5V SOIC-24 0º C to +70º C 

X9260US24 dual 256 50 5V±10% SOIC-24 0º C to +70º C 

X9260TS24I-2.7 dual 256 100 2.7V to 5.5V SOIC-24 -40º C to +85º C 

X9260TS24I dual 256 100 5V±10% SOIC-24 -40º C to +85º C 

X9260TS24-2.7 dual 256 100 2.7V to 5.5V SOIC-24 0º C to +70º C 

X9260TS24 dual 256 100 5V±10% SOIC-24 0º C to +70º C 

X9261US24I-2.7 dual 256 50 2.7V to 5.5V SOIC-24 -40º C to +85º C 

X9261US24I dual 256 50 5V±10% SOIC-24 -40º C to +85º C 

X9261US24-2.7 dual 256 50 2.7V to 5.5V SOIC-24 0º C to +70º C 

X9261US24 dual 256 50 5V±10% SOIC-24 0º C to +70º C 

X9261TS24I-2.7 dual 256 100 2.7V to 5.5V SOIC-24 -40º C to +85º C 

X9261TS24I dual 256 100 5V±10% SOIC-24 -40º C to +85º C 

X9261TS24-2.7 dual 256 100 2.7V to 5.5V SOIC-24 0º C to +70º C 

X9261TS24 dual 256 100 5V±10% SOIC-24 0º C to +70º C 

X9261UV24I-2.7 dual 256 50 2.7V to 5.5V TSSOP-24 -40º C to +85º C 


www.xicor.com 



® 




X9261UV24I dual 256 50 5V±10% TSSOP-24 -40º C to +85º C 

X9261UV24-2.7 dual 256 50 2.7V to 5.5V TSSOP-24 0º C to +70º C 

X9261UV24 dual 256 50 5V±10% TSSOP-24 0º C to +70º C 

X9261TV24I-2.7 dual 256 100 2.7V to 5.5V TSSOP-24 -40º C to +85º C 

X9261TV24I dual 256 100 5V±10% TSSOP-24 -40º C to +85º C 

X9261TV24-2.7 dual 256 100 2.7V to 5.5V TSSOP-24 0º C to +70º C 

X9261TV24 dual 256 100 5V±10% TSSOP-24 0º C to +70º C 

X9261UB16I-2.7 dual 256 50 2.7V to 5.5V FCP16 -40º C to +85º C 

X9261UB16I dual 256 50 5V±10% FCP16 -40º C to +85º C 

X9261UB16-2.7 dual 256 50 2.7V to 5.5V FCP16 0º C to +70º C 

X9261UB16 dual 256 50 5V±10% FCP16 0º C to +70º C 

X9261TB16I-2.7 dual 256 100 2.7V to 5.5V FCP16 -40º C to +85º C 

X9261TB16I dual 256 100 5V±10% FCP16 -40º C to +85º C 

X9261TB16-2.7 dual 256 100 2.7V to 5.5V FCP16 0º C to +70º C 

X9261TB16 dual 256 100 5V±10% FCP16 0º C to +70º C 

X9268US24I-2.7 dual 256 50 2.7V to 5.5V SOIC-24 -40C to +85C 

X9268US24I dual 256 50 5V±10% SOIC-24 -40C to +85C 

X9268US24-2.7 dual 256 50 2.7V to 5.5V SOIC-24 0C to +70C 

X9268US24 dual 256 50 5V±10% SOIC-24 0C to +70C 

X9268TS24I-2.7 dual 256 100 2.7V to 5.5V SOIC-24 -40C to +85C 

X9268TS24I dual 256 100 5V±10% SOIC-24 -40C to +85C 

X9268TS24-2.7 dual 256 100 2.7V to 5.5V SOIC-24 0C to +70C 

X9268TS24 dual 256 100 5V±10% SOIC-24 0C to +70C 

X9269US24I-2.7 dual 256 50 2.7V to 5.5V SOIC-24 -40C to +85C 

X9269US24I dual 256 50 5V±10% SOIC-24 -40C to +85C 

X9269US24-2.7 dual 256 50 2.7V to 5.5V SOIC-24 0C to +70C 

X9269US24 dual 256 50 5V±10% SOIC-24 0C to +70C 

X9269TS24I-2.7 dual 256 100 2.7V to 5.5V SOIC-24 -40C to +85C 

X9269TS24I dual 256 100 5V±10% SOIC-24 -40C to +85C 

X9269TS24-2.7 dual 256 100 2.7V to 5.5V SOIC-24 0C to +70C 

X9269TS24 dual 256 100 5V±10% SOIC-24 0C to +70C 

X9269UV24I-2.7 dual 256 50 2.7V to 5.5V TSSOP-24 -40C to +85C 

X9269UV24I dual 256 50 5V±10% TSSOP-24 -40C to +85C 

X9269UV24-2.7 dual 256 50 2.7V to 5.5V TSSOP-24 0C to +70C 

X9269UV24 dual 256 50 5V±10% TSSOP-24 0C to +70C 

X9269TV24I-2.7 dual 256 100 2.7V to 5.5V TSSOP-24 -40C to +85C 

X9269TV24I dual 256 100 5V±10% TSSOP-24 -40C to +85C 

X9269TV24-2.7 dual 256 100 2.7V to 5.5V TSSOP-24 0C to +70C 

X9269TV24 dual 256 100 5V±10% TSSOP-24 0C to +70C 

X9269UB16I-2.7 dual 256 50 2.7V to 5.5V FCP16 -40C to +85C 

X9269UB16I dual 256 50 5V±10% FCP16 -40C to +85C 

X9269UB16-2.7 dual 256 50 2.7V to 5.5V FCP16 0C to +70C 

X9269UB16 dual 256 50 5V±10% FCP16 0C to +70C 

X9269TB16I-2.7 dual 256 100 2.7V to 5.5V FCP16 -40C to +85C 

X9269TB16I dual 256 100 5V±10% FCP16 -40C to +85C 

X9269TB16-2.7 dual 256 100 2.7V to 5.5V FCP16 0C to +70C 

X9269TB16 dual 256 100 5V±10% FCP16 0C to +70C 





X9271UV14 single 256 50 5 TSSOP - 14 0C to 70C 

X9271UV14-2.7 single 256 50 2.7-5 TSSOP - 14 0C to 70C 

X9271UV14I single 256 50 5 TSSOP - 14 -40C to +85C 

X9271UV14I-2.7 single 256 50 2.7-5 TSSOP - 14 -40C to +85C 


www.xicor.com


® 








X9279UV14 single 256 50 5 TSSOP - 14 0C to 70C 

X9279UV14-2.7 single 256 50 2.7-5 TSSOP - 14 0C to 70C 

X9279UV14I single 256 50 5 TSSOP - 14 -40C to +85C 

X9279UV14I-2.7 single 256 50 2.7-5 TSSOP - 14 -40C to +85C 

X9318WP8 single 100 10 8 PDIP - 8 0C to 70C 

X9318WP8I single 100 10 8 PDIP - 8 -40C to +85C 

X9318WS8 single 100 10 8 SOIC - 8 0C to 70C 

X9318WS8I single 100 10 8 SOIC - 8 -40C to +85C 

X9319WS8 single 100 10 10 SOIC - 8 0C to 70C 

X9319WS8I single 100 10 10 SOIC - 8 -40C to +85C 

X9319WP8 single 100 10 10 PDIP - 8 0C to 70C 

X9319WP8I single 100 10 10 PDIP - 8 -40C to +85C 

X9319US8 single 100 50 10 SOIC - 8 0C to 70C 

X9319US8I single 100 50 10 SOIC - 8 -40C to +85C 

X9319UP8 single 100 50 10 PDIP - 8 0C to 70C 

X9319UP8I single 100 50 10 PDIP - 8 -40C to +85C 

X93154UX8I-3 single 32 50 2.7-3.3 FCP-8 -40C to +85C 

X93154UM8I-3 single 32 50 2.7-3.3 MSOP-8 -40C to +85C 

X9455YV24-2.7 quad 256 2.8 2.7-5 TSSOP - 24 0C to 70C 

X9455YV24I-2.7 quad 256 2.8 2.7-5 TSSOP - 24 -40C to +85C 

X9455WV24-2.7 quad 256 10 2.7-5 TSSOP - 24 0C to 70C 

X9455WV24I-2.7 quad 256 10 2.7-5 TSSOP - 24 -40C to +85C 





X9460KV14 dual 32-Log 33 5 TSSOP - 14 0C to 70C 

X9460KV14-2.7 dual 32-Log 33 2.7 - 5 TSSOP - 14 0C to 70C 

X9460KV14I dual 32-Log 33 5 TSSOP - 14 -40C to +85C 

X9460KV14I-2.7 dual 32-Log 33 2.7 - 5 TSSOP - 14 -40C to +85C 


www.xicor.com 


® 


X9470 Bias Control Product for RF Power Amplifiers (RFPA) 


• Power Amplifier Bias Control for cellular base station or RF power 

amplifiers/module vendors 

• DC Bias Control for LDMOS power amplifiers 

Key Features 

• Complete RFPA biasing solution for 900MHz, 1900MHz, and 

2100MHz power amplifiers 

• Integrated Current Sense, Comparator, Voltage Reference setting, 

Voltage DACs, Output Buffer 

• Closed Loop Mode sets gate bias of RF power amps during 

manufacturing 

• Closed Loop Mode in dynamically corrects for aging effects in 

LDMOS amplifier design 

• Gate voltage adjusted over temperature using a periodic sampling mode 

• I 2 C interface and up to eight slave addresses to cover all ampifier 

applications that require multiple LDMOS 

• Monitors enable overcurrent and undercurrent protection of RFPA 

• Internal buffer can drive 1nF for LDMOS gates or an external 

inverting buffer can be used for GaAs 

• Non-volatile registers to store bias voltage values No external 

memory needed!!! 

• Low bill of materials, small form-factor, available in 24-pin TSSOP 



TSSOP 

V sense+ 1 

24 V sense- 

RH REF 2 

23 SHDN 

RL REF 3 

22 INC/DEC 

RW REF 

AGND 

4 

5 

21 

20 

V OUT 

V+ 

VSS 6 

19 

X9470 

V CC 

CS 7 

18 V CC 

SCL 8 

17 V BIAS 

SDA 9 

16 VSS 

RH BIAS 10 

15 

A2 

RW BIAS 11 14 A1 

RL BIAS 12 13 A0 

VCC Range VDD Range Package Operating Temp. Range Part Number 

4.75-5.23V 20-28V TSSOP -40ºC to +85ºC X9470 V24I 

Description 

The Xicor X9470 RFPA Bias Controller contains all of the 

necessary analog components to sense the PA drain current 

through an external sense resistor and automatically control 

the gate bias voltage of an LDMOS PA. The external sense 

resistor voltage is amplified by an instrumentation amplifier 

and the output of the amplifier along with an external reference 

voltage is fed to the inputs of a comparator. The comparator 

output indicates which direction the LDMOS gate bias voltage 

will move in the next calibration cycle. System calibration is 

accomplished by enabling the X9470 and providing a clock to 

the SCL pin. The LDMOS drain current can be maintained constant 

over temperature and aging changes by periodic calibration. 

The V OUT pin can be used to monitor the average power 

by tracking the drain current. Up to eight X9470 or additional 

Xicor Digital Potentiometers can be controlled via a two-wire 

serial bus. 

Benefits 

• Closed Loop Biasing to better than 6% accuracy 

• High Integration reduces solution size and routing complexity 

• Reduces time and cost to test in manufacturing 

• Improves linearity performance by adjusting bias 

to overcome aging effects 

• Eliminates temperature drift 

• Uses only two wires to control bias, minimizing intrusion 

into RF circuitry 

• Protection for RF Power Amplifier for high-current stress 

or low current failure conditions 

• Drives LDMOS gates directly at high speed for calibration 

and shutdown 

• No microcontroller required for memory transfers 

at power-up 

• Small board space 


on page 2-12 

Block Diagram 

A2 

A1 

A0 

SDA 

SCL 

RW REF RL REF V+ 

V 

V SS 

INC/DEC 

RH REF 

AGND V OUT 

V DD 

V CC CS RH BIAS RW BIAS RL BIAS SHDN 

Class A Example 

REF 

R REF 

V SENSE+ 

C BULK 

∆V 

V SENSE– 

R SENSE 

Comparator 

Instrumentation 

VP 

Amplifier 

V REF 

choke 

I 2 C 

control 

interface 

R BIAS 

V bias 

control 

V BIAS 

+ 

FILTER 

Control & 


RF 

out 

Status Registers 

RF PA in 

EEPROM 

Matching 

RF Impedance 

V BIAS (Unbuffered) 


www.xicor.com

® 


X9530 Temperature Compensated Laser Diode Controller 


• SONET and SDH Transmission System Laser Diode Bias Control 

• 1G and 10G Ethernet, and Fibre Channel Laser Diode Driver Circuits 

Key Features 

• Compatible with Popular Fiber Optic Module Specifications such as 

Xenpak, SFF, SFP, and GBIC 

• Package 

— 14-Pin TSSOP 

— 15-Lead 2.7 x 3.5mm CSP (Chip Scale Package) 

• Two Programmable Current Generators 

— ±1.6 mA max. 

— 8-bit (256 Step) Resolution 

• Integrated 6 bit A/D Converter 

• Temperature Compensation 

— Internal or External Sensor 

— –40°C to +100°C Range 

— 2.2°C/step resolution 

— EEPROM Look-up Tables 

• Hot Pluggable 

• 2176-bit EEPROM 

— 17 Pages 

— 16 Bytes per Page 

• Write Protection Circuitry 

— Xicor BlockLock 

— Logic Controlled Protection 

VRef 

— 2-wire Bus with 3 Slave Address Bits 

• 3 V to 5.5 V, Single Supply Operation 


TSSOP 14L 

A0 1 14 

A1 2 13 

A2 

Vcc 

3 

4 

12 

11 

WP 5 10 

SCL 6 9 

SDA 7 8 

I2 

V Ref 

V Sense 

Vss 

R2 

R1 

I1 

VSense 

SDA 

SCL 

WP 

Description 

The X9530 is a highly integrated laser diode bias controller 

which incorporates two digitally controlled Programmable 

Current Generators, temperature compensation with dedicated 

look-up tables, and supplementary EEPROM array. All functions 

of the device are controlled via a 2-wire digital serial interface. 

Two temperature compensated Programmable Current Generators, 

vary the output current with temperature according to the contents 

of the associated non-volatile look-up table. The look-up 

table may be programmed with arbitrary data by the user, via the 

2-wire serial port, and either an internal or external temperature 

sensor may be used to control the output current 

response. These temperature compensated programmable 

currents may be used to control the modulation current and 

the bias current of a laser diode. 

The integrated General Purpose EEPROM is included for product 

data storage and can be used for transceiver module information 

storage in laser diode applications. 

Block Diagram 

Voltage 

Reference 

Temperature 

Sensor 

ADC 

2-Wire 

Interface 

Mux 

Mux 

Look-up 

Table 2 

Look-up 


Control 

& Status 

General 

Purpose 

Memory 

Mux 

Mux 

DAC2 

DAC1 

R2 

I2 

I1 

R1 


A2, A1, A0 

Top View - Bumps Down CSP – B15 

3 2 1 

A 

A0 I2 VRef 

GBIC / SFP / XFP Module 

Vcc A1 VSense 

V 

B 

CC 

High Speed 

SCL A2 Vss 

C 

Data Input 

LD MPD 

SDA Vss R2 

D 

WP I1 R1 Laser 

E 

X9530 

Diode 

I Driver 

I 

I MON 

MODSET LD 

I 1 

Circuit 


MOD_DEF (0) SDA 

on page 2-12 

MOD_DEF (1) 

SCK I 2 

I PINSET /I BIASSET 

www.xicor.com 



® 

X9530 Temperature Compensation Laser Diode Controller 


X9530 Dual Channel 8-bit DAC Current Sources, 6-bit ADC, Two Independent banks of Lookup Tables, 14-lead TSSOP 

General Purpose EEPROM, 2-wire serial bus, Internal voltage reference and temperature sensor 

X9520, X9521, X9522, Multi-channel Digital Potentiometer, 256-tap, 100-tap, 64-tap, Non-volatile Memory, 14-lead TSSOP 

X9523, X9525 Dual Voltage Monitors, Power-On Recall, 2-wire serial bus 

X9258, X9259, X9250, X9251 Quad 256-tap Digital Potentiometers, Non-volatile Memory, 2-wire and SPI serial interface 24-lead TSSOP, SOIC 

X9260, X9261, X9268, X9269 Dual 256-tap Digital Potentiometers, Non-volatile Memory, 2-wire and SPI serial interface 24-lead SOIC 

X9271, X9279 Single 256-tap Digital Potentiometers, Non-volatile Memory, 2-wire and SPI serial interface 14-lead TSSOP 

X9110, X9111, X9118, X9119 Single 1024-tap Digital Potentiometers, Non-volatile Memory, 2-wire and SPI serial interface 14-lead TSSOP 


www.xicor.com

® 




• Dual Voltage Supply 

• Terminal Voltage 0V to 13V 

• 128 Tap 

• Up/Down Interface with Chip Select Enable 


Key Features 

• Non-volatile Solid-state Potentiometer 

• DCP Terminal voltage, 0 to +13V 







• Endurance, 100,000 data changes per bit 


Benefits 








Description 

The Xicor X95310 is a digitally controlled potentiometer 

(XDCP). The device consists of a resistor array, wiper switches, 

a control section, and non-volatile memory. The wiper position 

is controlled by a Up /Down interface. 



Between each element and at either end are tap points accessible 

to the wiper terminal. The position of the wiper element is controlled 

by the CS, U/D, and INC inputs. The position of the wiper 

can be stored in non-volatile memory and then be recalled 

upon a subsequent power-up operation. 



including: 

• LCD Contrast Control 

• Parameter and Bias Adjustmentsl 

• Industrial and Automative Control 


U/D 

GND 

V CC 

CS 

NC 

10-lead MSOP 

1 

2 

3 

4 

5 

10 

9 

X95310 8 

7 

6 

INC 

V+ 

R L 

R W 

R H 



Block Diagram 

V CC V+ (Supply Voltage) 

U/D 

INC 

CS 

7-Bit 

Up/Down 

Counter 

127 

126 

R H 

Up/Down 

(U/D) 

Increment 

(INC) 

Device Select 

(CS) 

Control 


Memory 

R H 

R W 

R L 

7-Bit 

Nonvolatile 

Memory 

125 

124 


128 

Decoder 

2 

Transfer 

Gates 

Resistor 

Array 

V SS 

(Ground) 

V+ 

GND 



Circuitry 

1 

0 

General 

R L 

R W 

Detailed 

www.xicor.com 


® 




• Dual Supply 

• Terminal Voltage 0V to +13V 

• 128 Tap 

• 2-wire serial Interface 


Key Features 

• Solid-state Potentiometer 

• DCP Terminal voltage, 0 to +13V 







• Endurance, 100,000 data changes per bit 


Benefits 







Description 

The Xicor X95311 is a digitally controlled potentiometer 

(XDCP). The device consists of a resistor array, wiper switches, 

a control section, and non-volatile memory. The wiper position 

is controlled by a 2-wire interface. 



Between each element and at either end are tap points accessible 

to the wiper terminal. The wiper of each potentiometer has 

an associated volatile Wiper Counter Register (WCR) and a 

non-volatile Data Register that can be directly written to and 


of the wiper on the resistor array though the switches. At 

power-up, the device recalls the contents of the default data 

registers to the corresponding WCR 



including: 

• LCD Contrast Control 

• Parameter and Bias Adjustmentsl 

• Industrial and Automative Control 


SDA 

GND 

V CC 

A1 

A0 

10-lead MSOP 

1 

2 

3 

4 

5 

10 

9 

X95311 8 

7 

6 

SCL 

V+ 

R L 

R W 

R H 

Block Diagram 


V CC V+ (Supply Voltage) 

SDA 

SCL 

7-Bit Wiper 

Register 

(volatile) 

127 

126 

R H 

SDA 

SCL 

A1 

A0 

Control 


Memory 

R H 

R W 

R L 

7-Bit 

Nonvolatile 

Memory 

125 

124 


128 

Decoder 

2 

Transfer 

Gates 

Resistor 

Array 

GND (Ground) 

V+ 

GND 



Circuitry 

1 

0 

General 

A1 

A0 

Slave 

Address 

Decode 

Detailed 

R L 

R W 



® 

X95840 Quad Digital Controlled Potentiometers (XDCP ) 



• Low Power 

• 255 Tap 

• 2-wire serial Interface 

• Write Protect 


Key Features 


• 256 resistor taps 

• Hardware slave address allows up to 8 devices 

on single 2-wire bus 

• Voltage supply Range: 2.7V to 5.5V 

• 2-wire serial interface 

• Endurance: 100,000 data changes per bit per register 

• 20-lead TSSOP, 20-pin FCP (Flip-Chip Package) 

Benefits 







Description 

The X95840 integrates four digitally controlled potentiometers 


The digitally controlled potentiometers are implemented with a 

combination of resistor elements and CMOS switches. The position 

of the wipers are controlled by the user through the 2-wire 

bus interface. Each potentiometer has an associated volatile 

Wiper Register (WR) and a non-volatile Initial Value Register 

(IVR), that can be directly written to and read by the user. The 

contents of the WR controls the position of the wiper. At power 

up the device recalls the contents of the four DCP’s IVR to the 

corresponding WRs. 

The DCPs can be used as three-terminal potentiometers or as 

two-terminal variable resistors in a wide variety of applications 



R H3 

R L3 

R W3 

A2 

SCL 

SDA 

GND 

R W2 

R L2 

R H2 

TSSOP 

1 

20 

2 

19 

3 

18 

4 

17 

5 

16 

X95840 

6 

15 

7 

14 

8 

13 

9 

12 

10 

11 

R W0 

R L0 

R H0 

WP 

V CC 

A1 

A0 

R H1 

R L1 

R W1 


Block Diagram 

V CC 


SDA 

SCL 

2-wire 

Interface 

Power-up, 

Interface, 


Status Logic 

R H3 

WR3 DCP3 R W3 

R L3 

R H2 

WR2 DCP2 R W2 

R L2 

A2 

A1 

A0 

Non-Volatile 

Registers 

R H1 

WR1 DCP1 R W1 

R L1 

R H0 

WR0 DCP0 R W0 

R L0 

WP 

GND 

www.xicor.com 



® 

X90100 Non-volatile 32-Tap Digitally Programmable Capacitor 


• 32-Tap 

• Digital Capacitor 

• DC to 400MHz applications 

• -40˚C to 85˚C operation 

Key Features 

• 32-tap Digital Capacitor 

• 7.5pF to 14.5pF (Single-ended mode) for a 0.22pF/step 

• 3-wire Digital Interface for Up/Down 

• Power On Recall of Capacitor value from EEPROM 

• 8-pin MSOP 

• Non-volatile version of MAX1474 


Description 

The Xicor X90100 is a non-volatile electronically programmable 

capacitor. The device is programmed through a simple digital 

interface. After programming, the chosen setting for the device 

is retained by internal EEPROM storage whether or not DC 

power is maintained. There are 32 programmable capacitance 

values selectable, ranging from 7.5 pF to 14.5 pF in 0.23 pF 

increments, in single-ended mode. The dielectric is highly stable, 

and the capacitance exhibits a very low voltage coefficient. 

The X90100 is programmed through three digital interface pins, 

which have Schmitt triggers and pullup resistors to secure code 

retention. The three pins, INC, U/D, and CS, are identical in operation 

to other Xicor chips with up/down interface, such as the 

X9315 5-bit Digitally Controlled Potentiometer (XDCP). 

Benefits 

• In circuit programmable capacitor to tune oscillators, resonators 

or filters 

• Non-volatile storage of capacitor position and power on recall 

makes the digital capacitor suitable for embedded applications without 

the need for on-board controllers 

• Reduces cost of manufacturing 

• Higher reliability over mechanical equivalents 

Block Diagram 

Cp 

C PAD 

1*C U 

2*C U 

4*C U 

C PAD 

Cm 


MSOP 

8*C U 

V SS 

INC 

U/D 

V ss 

Cp 

1 

2 

3 

4 

X90100 

8 

7 

6 

5 

V CC 

CS 

N/C 

Cm 

U/D 

INC 

16*C U 

Logic and E 2 

CS 

V CC 

Power On Reset 


Ordering Number 

Ctotal 

Package 


X90100M8I 7.5pF to 14.5pF, Single Ended 8-lead MSOP -40C to +85C 

*Note: For other capacitance values or higher frequency of operation, contact your local sales office. 


on page 2-1 


® 


X96010 Highly Integrated Bias Controller 


Sensor Conditioner with Dual Look Up Table Memory and DACs 

Key Features 


— ±3.2 mA max. 


— External resistor pins to set full scale current output 

• External Sensor Input (Single ended) 

• Integrated 8-bit A/D Converter 

• Internal Voltage Reference with Output/Input 

• EEPROM Look-up Tables 

• Package 

— 14-lead TSSOP 


Benefits 










Description 

The X96010 is a highly integrated bias controller which incorporates 

two digitally controlled Programmable Current 

Generators and sensor compensation with dedicated look-up 

tables. All functions of the device are controlled via a 2-wire 

digital serial interface. 

Two Programmable Current Generators vary the output current 

with an external sensor input according to the contents of the 

associated non-volatile look-up table. The look-up table may be 

programmed with arbitrary data by the user via the 2-wire serial 

port, and typically an external temperature sensor is used to 

control the output current response. 


TSSOP 14L 

A0 1 14 

A1 2 13 

A2 

Vcc 

3 

4 

12 

11 

WP 5 10 

SCL 6 9 

SDA 7 8 

I2 

V Ref 

V Sense 

Vss 

R2 

R1 

I1 


Block Diagram 

V Ref 

Voltage 

Reference 

Mux 

Look-up 


Mux 

DAC 2 

R2 

I2 

V Sense 

ADC 

Mux 

Look-up 


Mux 

DAC 1 

I1 

Control 

& Status 

R1 

SDA 

SCL 

WP 

A2, A1, A0 

2-Wire 

Interface 



on page 2-12 

Part Number Temperature Range Package 

X96010V14I 

I = -40 to 100°C 

14-Lead TSSOP 

www.xicor.com 


® 




Temperature Sensor with Look Up Table Memory and DAC 

Key Features 

• Programmable Current Generator 

— 3.2 mA max. 


• Internal Temperature Sensor 


• Internal Voltage Reference 


• EEPROM Look-up Tables 


Benefits 










Description 

The X96011 is a highly integrated bias controller which incorporates 

a digitally controlled Programmable Current Generator, 

and temperature compensation using one look-up table. All 

functions of the device are controlled via a 2-wire digital serial 

interface. 

The temperature compensated Programmable Current Generator 

varies the output current with temperature according to the contents 

of the associated non-volatile look-up table. The look-up 

table may be programmed with arbitrary data by the user, via the 

2-wire serial port, and an internal temperature sensor is used to 

control the output current response. 


TSSOP 14L 

A0 1 14 NC 

A1 2 13 NC 

A2 3 12 NC 

Vcc 

WP 

4 

5 

11 

10 

Vss 

NC 

SCL 6 9 NC 

SDA 7 8 

V OUT 

Block Diagram 

Voltage 

Reference 

ADC 

Mux 

Look-up 

Table 

Mux 

DAC 

I OUT 

Temperature 

Sensor 

SDA 

Control 

& Status 

SCL 

WP 

A2, A1, A0 

2-Wire 

Interface 



on page 2-12 


X96011V14I I = -40 to 100°C 14-Lead TSSOP 


® 




Universal Sensor Conditioner with Dual Look Up Table Memory and DAC 

Key Features 


— ±3.2 mA max. 


— Internally Programmable full scale Current Outputs 

• External Resistor Pin to set full scale Current Outputs 


• Internal Voltage Reference with Output/Input 


— Internal or External Sensor 

— –40°C to +100°C Range 

— 2.2°C/step resolution 

— EEPROM Look-up Tables 

• Hot Pluggable 

• 2176-bit EEPROM 

— 17 Pages 

— 16 Bytes per Page 


Benefits 











TSSOP 14L 

A0 1 14 

A1 2 13 

A2 

Vcc 

3 

4 

12 

11 

WP 5 10 

SCL 6 9 

SDA 7 8 

I2 

V Ref 

V Sense 

Vss 

R2 

R1 

I1 

VRef 

VSense 

SDA 

SCL 

WP 

A2, A1, A0 

Voltage 

Reference 

Temperature 

Sensor 

Description 

The X96012 is a highly integrated bias controller which 

incorporates two digitally controlled programmable current 

generators, temperature compensation with dedicated look-up 

tables, and supplementary EEPROM array. All functions of the 

device are controlled via a 2-wire digital serial interface. 

Two temperature compensated Programmable Current 

Generators vary the output current with temperature according 

to the contents of the associated non-volatile look-up table. The 

look-up table may be programmed with arbitrary data by the 

user, via the 2-wire serial port, and either an internal or external 

temperature sensor may be used to control the output current 

response. 

The integrated General Purpose EEPROM is included for product 

data storage. 

Block Diagram 

ADC 

2-Wire 

Interface 

Mux 

Mux 

Look-up 


Look-up 


Control 

& Status 

General 

Purpose 

Memory 

Mux 

Mux 

DAC2 

DAC1 

R2 

I2 

I1 

R1 




on page 2-12 


X96012V14I I = -40 to 100°C 14-Lead TSSOP 

www.xicor.com 



® 

X60002-12 & X60002-25 Precision 1.25V & 2.5V Low Supply Voltage FGA References 


• Low Supply Voltage Operation: 2.5V to 5.5V 

• Low Supply Current: 500nA Typical 

• Industry Standard Pinouts 

• Standard SOT23-3 Packaging 

Key Features 

• Reference Voltage Options: 1.25 & 2.5V 

• Absolute Initial Accuracy Options: ±1.0mV, ±2.5mV, & ±5.0mV 

• Supply Voltage Range: 2.5V to 5.5V 

• Ultra-Low Supply Current: 500nA 

• Low Temperature Coefficient Options: 10ppm/°C, & 20ppm/°C 

• 8mA Source & Sink current 

• ESD Protection: 5kV 

• Standard SOT23-3 Packaging 

• Temperature Range: -40°C to +85°C 


Description 

The X60002 family 1.25V and 2.5V of FGA voltage references 

are precision analog voltage references fabricated in Xicor’s 

proprietary Floating Gate Analog technology and feature low 

(2.5V to 5.5V) supply voltage operation at ultra-low 500nA operating 

current that compliments the small size of the SOT23 package. 

Additional features include guaranteed absolute initial accuracy 

as low as ±1.0mV, temperature coefficient as low as 10ppm/°C 

and long-term stability of 10 ppm/ °C. The initial accuracy and 

thermal stability performance of the X60002 family plus the low 

supply voltage and 500nA power consumption eliminates the 

need to compromise thermal stability for reduced power 

consumption making it an ideal companion to high resolution, 

low power data conversion systems. 

Block Diagram 

V IN 

SOT23-3 

V IN 

V OUT 

1 

2 

3 

GND 

SOIC-8 

GND 

V IN 

DNC 

GND 

1 

2 

3 

4 

8 

7 

6 

5 

DNC 

DNC 

V OUT 

DNC 

0.1µF 

V IN 

X60002-12 

X60002-25 

GND 

V OUT 

.001µF* 

* Optional 


Part Number Grade Temperature Range Package Reference Output 

X60002BIG3-12 B = ±1.0mV, 10ppm/°C -40°C to +85°C 3-lead SOT-23 1.250V 

X60002BIS8-12 B = ±1.0mV, 10ppm/°C -40°C to +85°C 8-lead SOIC 1.250V 

X60002CIG3-12 C = ±2.5mV, 20ppm/°C -40°C to +85°C 3-lead SOT-23 1.250V 

X60002CIS8-12 C = ±2.5mV, 20ppm/°C -40°C to +85°C 8-lead SOIC 1.250V 

X60002DIG3-12 D = ±5.0mV, 20ppm/°C -40°C to +85°C 3-lead SOT-23 1.250V 

X60002DIS8-12 D = ±5.0mV, 20ppm/°C -40°C to +85°C 8-lead SOIC 1.250V 

X60002BIG3-25 B = ±1.0mV, 10ppm/°C -40°C to +85°C 3-lead SOT-23 2.500V 


X60002CIG3-25 C = ±2.5mV, 20ppm/°C -40°C to +85°C 3-lead SOT-23 2.500V 


X60002DIG3-25 D = ±5.0mV, 20ppm/°C -40°C to +85°C 3-lead SOT-23 2.500V 




® 

X60007-12, X60007-25 Precision 1.25V & 2.5V Low Supply Voltage FGA References 


• Low Supply Voltage Operation: 2.5V to 5.5V 

• Low Supply Current: 500nA Typical 


• Standard SOIC-8 Packaging 

Key Features 

• Reference Voltage Options: 1.25 & 2.5V 

• Absolute Initial Accuracy Options: ±0.5mV, ±1.0mV, ±5.0mV 



• Low Temperature Coefficient Options: 3ppm/°C, 5ppm/°C, 

& 10ppm/°C 

• 8mA Source & Sink Current 


• Standard SOT23-3 & SOIC-8 Packaging 


Description 

The X60007 family of 1.25V and 2.5V voltage references 

optimized specifically for low (2.5V to 5.5V) supply voltage 

operation are very high precision references fabricated in 

Xicor’s proprietary Floating Gate Analog technology. 

In addition to operation at low supply voltages, the X60007 family 

features guaranteed initial accuracy as low as ±0.5mV, temperature 

coefficients as tight as 3 ppm/°C and 10 ppm/1,000Hrs long-term 

stability while consuming 500nA of supply current. 

The initial accuracy and thermal stability performance of the 

X60007 family plus the low supply voltage capability and 500nA 

power consumption eliminates the need to compromise 

thermal stability for reduced power consumption making it 

an ideal companion to high resolution, low power data 

conversion systems. 

Block Diagram 



SOIC-8 

GND 

8 

V IN 

1 

2 7 

DNC 

DNC 

V IN 

0.1µF 

V IN 

X60007-12 

X60007-25 

V OUT 

DNC 

GND 

3 

4 

6 

5 

V OUT 

DNC 

GND 

.001µF* 

* Optional 








www.xicor.com 



® 

X60008A-50 1ppm/°C, 5.0V, Ultra-stable Precision Low Power FGA Voltage References 


• High Initial Accuracy: ±500µv 

• Ultra Stable Temperature Coefficient: 1ppm/°C 

• Low Thermal Hysteresis: 

10ppm @ _T = 25°C & 50ppm @ _T = 125°C 

• Ultra-Low 500nA Supply Current 

• Excellent Long Term Stability 10ppm/1,000Hrs 

Key Features 

• Ultra-Low Temperature Coefficient: 1ppm/°C 

• Absolute Initial Accuracy: ±0.5mV 

• 10ppm Thermal Hysteresis 

• Ultra-Low Supply Current: 800nA maximum 

• Long Term Stability: 10ppm/1,000Hrs 


• 80 mA Short Circuit Current Continuous 


• Standard SOIC-8 Package 



SOIC-8 

Description 

The X60008-50 is an extremely stable low power, high accuracy 

5.0V voltage reference fabricated in Xicor’s proprietary Floating 

Gate Analog technology. The X60008A-50 features guaranteed 1 

ppm/°C maximum temperature coefficient, absolute initial 

accuracy of ±500µV and extremely low, 10ppm thermal 

hysteresis. Operating power consumption is typically 500nA and 

load regulation is guaranteed up to 10mA (source and sink). 

Short circuit current is guaranteed at 80mA continuous. 

Initial accuracy is typically the first consideration when 

selecting a precision voltage reference, however, temperature 

coefficient must also be considered due to the impact of 

temperature variation on the reference output voltage. Devices 

with very tight initial accuracy specifications can be adversely 

impacted by temperature changes, thus minimizing the 

potential value of tight initial accuracy. Xicor’s X60008A-50 is 

tested and guaranteed to be 1 ppm/°C max over the full 125°C 

span of the industrial operating temperature range. The accuracy 

and thermal stability performance of the X60008A-50 in addition 

to the low 500 nA power consumption make it an ideal companion 

to high resolution, low power data conversion systems. 

Block Diagram 

GND 1 

V IN 2 

DNC 3 

8 

7 

6 

DNC 

DNC 

V OUT 

V IN 

0.1µF 

V IN 

GND 

4 

5 

DNC 

X60008A-50 

V OUT 

GND 

.001µF* 

* Optional 



X60008AIS8-50 A = ±0.5mV, 1ppm/°C -40°C to +85°C 8-lead SOIC 5.000V 


www.xicor.com


® 

X60008B/C/D/E-25 Precision 2.5V FGA References 


• High Initial Accuracy 

• Ultra Stable Temperature Coefficient 

• Low Thermal Hysteresis 


• Excellent Long Term Stability 



Key Features 

• Reference Voltage Output: 2.5V 




• Low Temperature Coefficient Options: 

— 3ppm/°C, 5ppm/°C, 10ppm/°C & 20ppm/°C 




Description 


2.5V voltage reference fabricated in Xicor’s proprietary 

Floating Gate Analog technology. The X60008-25 family features 

guaranteed initial accuracy as low as ±0.5mV, temperature 

coefficients as tight as 1 ppm/°C, extremely low, 10ppm 

thermal hysteresis and 10 ppm/1,000Hrs long-term stability 

while consuming only 500nA of supply current. Operating 

power consumption is typically 500nA and load regulation is 

guaranteed up to 10mA (source and sink). Short circuit current 

is guaranteed at 80mA continuous. 

The excellent accuracy and stability performance of the 

X60008-25 coupled with its low power consumption makes 

it an ideal choice for battery powered high resolution data 

acquisition systems. 

Block Diagram 

V IN 


0.1µF 

V IN 


X60008-25 

SOIC-8 

V OUT 

GND 1 

V IN 2 

8 

7 

DNC 

DNC 

GND 

.001µF* 

DNC 

GND 

3 

4 

6 

5 

V OUT 

DNC 

* Optional 






X60008EIS8-25 E = ±5.0mV, 20ppm/°C -40°C to +85°C 8-lead SOIC 2.5V 

www.xicor.com 



® 










Key Features 










Description 


4.096V voltage reference fabricated in Xicor’s proprietary 

Floating Gate Analog technology. The X60008-41 family features 

guaranteed initial accuracy as low as ±0.5mV, temperature 

coefficients as tight as 1 ppm/°C, extremely low, 10ppm 

thermal hysteresis and 10 ppm/1,000Hrs long-term stability 

while consuming only 500nA of supply current. Operating 

power consumption is typically 500nA and load regulation is 

guaranteed up to 10mA (source and sink). Short circuit current 

is guaranteed at 80mA continuous. 


X60008-41 coupled with its low power consumption makes it 

an ideal choice for battery powered high resolution data acquisition 

systems. 

Block Diagram 

V IN 


0.1µF 

V IN 

X60008-41 

SOIC-8 

V OUT 

GND 1 

V IN 2 

8 

7 

DNC 

DNC 

GND 

.001µF* 

DNC 

3 

6 

V OUT 

GND 

4 

5 

DNC 

* Optional 








www.xicor.com


® 

X60003B/C/D-50 Precision 5.0V SOT23 FGA Voltage References 









Key Features 


• Absolute Initial Accuracy Options: ±1.0mV, ±2.5mV, & ±5..0mV 




— 10ppm/°C & 20ppm/°C 




Description 


5.0V, SOT-23 voltage reference manufactured using the company’s 

proprietary Floating Gate Analog (FGA TM ) technology. 

The X60003 family features an incredibly low 500nA operating 

current that compliments the small size of the SOT-23 package. 

Additional features include guaranteed absolute initial accuracy 

as low as ±1.0mV, temperature coefficient as low as 10ppm/°C 

and long-term stability of 10 ppm/ °C. By reducing the 

reference supply current requirements from 5µA or more for 

competing devices to a mere 500nA, the X60003 family provides 

designers with precision voltage reference choices that 

meet the most demanding power budgets in today’s hi-density 

systems. In addition to the benefits of extremely low power 

consumption and SOT-23 packaging, the X60003 features the 

added benefits of increased temperature stability (10 & 

20 ppm/°C) and guaranteed initial accuracy (±1.0, ±2.5 & 5.0mV). 

Block Diagram 



V IN 

SOT23-3 

0.1µF 

V IN 

V IN 1 

2 

X60003-50 

3 

GND 

V OUT 

V OUT 

GND 

.001µF* 

* Optional 



X60003BIG3-50 B = ±1.0mV, 10ppm/°C -40°C to +85°C 3-lead SOT23 5.000V 

X60003CIG3-50 C = ±2.5mV, 20ppm/°C -40°C to +85°C 3-lead SOT23 5.000V 

X60003DIG3-50 D = ±5.0mV, 20ppm/°C -40°C to +85°C 3-lead SOT23 5.000V 

www.xicor.com 



® 










Key Features 










Description 


5.0V voltage reference fabricated in Xicor’s proprietary Floating 

Gate Analog technology. The X60008-50 family features 

guaranteed initial accuracy as low as ±0.5mV, temperature coefficients 

as tight as 1 ppm/°C, extremely low, 10ppm thermal hysteresis 

and 10 ppm/1,000Hrs long-term stability while consuming 

only 500 nA of supply current. Operating power consumption 

is typically 500nA and load regulation is guaranteed up to 10mA 

(source and sink). Short circuit current is guaranteed at 

80mA continuous. 


X60008-50 coupled with its low power consumption makes it 

an ideal choice for battery powered high resolution data acquisition 

systems. 

Block Diagram 

V IN 


0.1µF 

V IN 

SOIC-8 

X60008-50 

GND 1 

V IN 2 

DNC 3 

8 

7 

6 

DNC 

DNC 

V OUT 

GND 

V OUT 

.001µF* 

GND 

4 

5 

DNC 

* Optional 








www.xicor.com

® 


X60250 Programmable Voltage References 


• Non-volatile Digitally Adjustable 0V to 1.25V Reference 

Key Features 

• Reference voltage adjustable: 

— ±0.25% over 0V to 1.25V Range 

— ±0.10% over 0.625V to 1.25V Range 

• 20 ppm/°C temperature coefficient 

• On-Chip 8-bit 100kΩ Digitally Controlled Potentiometer 

• On-Chip Matched 100kΩ resistor for increased resolution 

over a smaller range 

• Programmable Resolution (255 steps): 

— 4.90mV over 0V to 1.25V Range 

— 2.45mV over 0.625V to 1.25V Range 

• 2.7V to 5.5V Supply Range 

• 2-Wire Interface for Programming Reference Setting 

• Low 20µA Supply current in normal mode 

• 8-pin TSSOP package 

Description 

The Xicor X60250 combines a temperature compensated 

voltage reference with a Xicor Digitally Controlled 

Potentiometer (XDCP) to provide a precision adjustable 

reference with a range of 0.0V to 1.25V. The device includes 

a serial bus interface to enable in-circuit programming of the 

reference voltage. 

The XDCP contains a resistor chain with 255 taps to provide 

8 bits of digital adjustment to the reference voltage. 

Non-volatile storage retains the digital wiper setting, for 

permanent reference programming. An additional matched 

100kΩ resistor is available to increase resolution of the 

output voltage while retaining accuracy. 

Block Diagram 


on page 2-3 


Benefits 










VREFL 

VCC 

VREFOUT 

VOUT 

1 

2 

3 

4 

TSSOP 

8 

7 

6 

5 

SCL 

SDA 

GND 

R1 

SCL 

SDA 

V CC 

V REFOUT 

1.25V 

Reference 

Pwr On Recall 

256 Tap DCP 

100K 

V OUT 

EE 

PROM 

R 1 

Serial 

Interface 

100 kW 

Digital Wiper 

Control 

GND V REFL 


Ordering Number Output Voltage Resolution Package Operating Temperature Range 

X60250V8I 1.250V 8 bits 8-pin TSSOP -40°C to 85°C 

www.xicor.com 


® 


X64000 Voltage Reference with Programmable Temperature Compensation and Output Voltage 


Figure1: X64000 Transfer Curve Programmable VREF with 

Temperature Bias Correction 

Vout (V) 

Key Features 

• Programmable output generator consisting of both a bandgap 

reference and a voltage proportional to temperature 

• Non-volatile EEPROM storage of programming trim codes 

• Programmable absolute term (25°C) 

• Programmable temperature term (+/- linear ppm/C) 

• 2-wire interface 

• 2% total accuracy over temperature and Vcc range 

• 200 uA active current 

• -40°C to 85°C 

• 8-lead MSOP, 8-lead FCP (Bumped Chip Scale) Package 

Benefits 

• Programmable - Active Temperature Bias Voltage 


X64000 xfer Curves 

3 

2.5 

2 

1.5 

1 

0.5 

0 

-50 0 50 100 

Temp (C) 

Ptat[0] 

Ptat[255] 

2*Ptat[0] 

2*Ptat[255] 

Description 

The Xicor X64000 is a programmable voltage reference that provides 

an output voltage that is the combination of a programmable 

Proportional to Absolute Temperature (PTAT) analog 

voltage generator and a bandgap voltage reference. The 8 lead 

surface mount device requires less than 50 uA of DC current 

and no external components. 

The chip permits the user to program via 2-wire bus an analog 

voltage that is the sum of two terms: a temperature independent 

term as a function of Vref and a temperature dependent term as 

a function of the PTAT. See Equation 1. The PTAT term may be 

positive or negative (see transfer curve, Figure 1). 

Equation 1 

where Vtemp = VPTAT = K*(T - T 0 ) 

AV is the selectable gain. 

Applications 

• Sensor Bias and Linearization 

• Data Acquisition Systems 

• Variable DAC reference 

• Linear Voltage Regulators 

• Amplifier biasing 

Block Diagram 

V CC 

MSOP 

A2 1 8 

A1 2 

7 


A0 3 

6 

V SS 4 

5 

Also available in Flip-Chip 

V CC 

V OUT 

SDA 

SCL 

V TEMP 

V ref 

V SS 

V out 

Bias 

Code[2] 

Code[1] 

DAC 

DAC 

∑ 

A 

Gain 

Select 

1, 2, 3 

TEST 

EEPROM 

8 x 8 

Communications 


Registers 

SCL 

SDA 

A0 

A1 

A2 


www.xicor.com


® 

X79000 Flex DAC Family 12 Bit DAC and Memory with Selectable Voltage Reference 


• 12-bit resolution DAC 

• Selectable full scale and zero scale voltages 

• 56 Bytes of general purpose EEPROM 

Key Features 

• Monotonic Design 

• 5V operation 

• Integrated voltage reference option 

• Voltage reference input (1.21V) option 

• Optional external full scale and zero scale references 

• SPI interface, 5MHz 

• Programmable, non-volatile DAC initial value register 

• Optional Up/Down interface 

• Up to 6 slave address pins 

• Asynchronous clear pin and control bit 

Benefits 

• Programmable V H and V L scale values allows the flexibility 

to determine the LSB step size. 

• Multiple ordering options allow multi-environment applications 

• Optional Up/Down interface allows three different LSB 

magnitude step adjustments. 

• Optional on chip voltage reference eliminates the need 

for external referencing. 

• Non-volatile memory allows power up recall and ready output. 

Description 

The 79000 is a family of Single Channel Digital-to-Analog 

Converters with integrated voltage reference, configurable output 

buffer, general purpose EEPROM and a programmable full 

scale and zero offset amplifier. 

The X79000 series implements a SPI serial bus interface with 

slave address identification allowing up to 32 devices on 

some options. The full scale and zero scale references and the 

DAC initial value register can be set via the SPI Bus interface. 

Optional pins are provided for push-pot style interface 

allowing for increment and decrement of the DAC register in 

modulo-2 n-th steps. 

A Power On Recall circuit is implemented to keep the DAC 

output at high impedance on power up and to load an initial 

user defined value from non-volatile memory. A power up 

ready signal is provided to inform system for operations. 

Additional non-volatile memory (56 Bytes) for general purpose 

is provided for curve-fit profile setting, signal conditioning 

parameters, or device and system identification. 


See Datasheet 


on page 2-16 


Block Diagram 

VH 

VL 

V OUT 

V Ref 

Voltage 

Reference 

Variable Gain 

& Level Shift 

Variable Gain 

& Level Shift 

DAC 

Core 

CE 

VBUF 

RDY 

Power Up 

Logic 

VFB 

DAC Register 

CLR 

A[5:0] 

SCK 

SO 

SI 

CS 

Serial 

Interface 


Control 

Logic 

General 

Purpose 

EEPROM 

DAC Shift 

Register 

DAC Initial 

Value Register 

UP 

DOWN 

V CC 

V SS 

www.xicor.com 


® 


X79000 Flex DAC Family 12 Bit DAC and Memory with Selectable Voltage Reference 


Features 

System 

Voltage Reference Voltage Outputs DAC Control Management 

Full Scale 

Buffered Out 

Internal Voltage Voltage Zero Scale (VBUF) and Buffer Unbuffered SPI Bus Increment/ DAC Register Power 

Voltage Ref Output Input/Output Voltage Input/ Feedback (VFB) Output (CS, SCK, Slave Address Decrement Asynchronous Ready 

Device Resolution Reference (Vref) (VH) Output (VL) with Enable (OE) (Vout) SI, SO) (A5:A0) (UP/DOWN) Clear (CLR) (RDY) 

X79000 12-bit Yes Yes Yes Yes Yes Yes Yes A0, A1, A2 Yes Yes Yes 

X79001 12-bit Yes No Yes Yes Yes Yes Yes A0, A1, A2, A3, A4, A5 No Yes Yes 

X79002 12-bit Yes Yes Yes Yes No Yes Yes A0, A1, A2, A3, A4 Yes Yes Yes 

Ordering Code Resolution Package Temp Range 

X79000V20I 12-Bit 20-lead TSSOP Industrial 



* Contact your local sales office for updates. 


www.xicor.com

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