Holtek HT658/S Data Sheet - Simple Solutions
Holtek HT658/S Data Sheet - Simple Solutions Holtek HT658/S Data Sheet - Simple Solutions
Holtek HT658/S Data Sheet Page 2 PIN OUT D1 D2 D3 D4 D5 D6 D7 VT DIN OSC2 OSC1 VSS 1 2 3 4 5 6 7 8 9 10 11 12 24 23 22 21 20 19 18 17 16 15 14 13 VDD D0 A9 A8 A7 A6 A5 A4 A3 A2 A1 A0 PIN DESCRIPTIONS Pin Name A0-A17 I/O I Internal Connection TRANSMISSION GATE Description Input pins for address A0-A17 setting They can be externally set to VDD, VSS or left open. D10-D17 O CMOS OUT Output data pins DIN I CMOS IN Serial data input pin VT O CMOS OUT Valid transmission, active high OSC1 I OSCILLATOR Oscillator input pin OSC2 O OSCILLATOR Oscillator output pin VSS I — Negative power supply (GND) VDD I — Positive power supply APPROXIMATE INTERNAL CIRCUITS TRANSMISSION GATE CMOS OUT CMOS IN OSCILLATOR EN OSC1 OSC2
Holtek HT658/S Data Sheet Page 3 ABSOLUTE MAXIMUM RATINGS* Supply Voltage .............. –0.3V to 13V Storage Temperature................. –50°C to 125°C Input Voltage..................VSS–0.3V to VDD+0.3V Operating Temperature............... –20°C to 75°C *Note: Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only. Functional operation of this device at these or any other conditions above those indicated in the operational sections of this specification is not implied and exposure to absolute maximum rating conditions for extened periods may affect device reliability. ELECTRICAL CHARACTERISTICS Symbol V DD V DD Operating Voltage — — 3 — 12 V I STB Standby Current I DD Operating Current 5V I O I VT Parameter Data Output Source Current (D10-D17) Data Output Sink Current (D10-D17) 5V Oscillator Stops — 0.1 1 µA 12V — 2 4 µA 5V Test Conditions Conditions No Load F OSC = 100kHz — 0.2 1 mA V OH= 4.5V –0.5 –1 — mA V OL= 0.5V 0.5 1 — mA VT Output Source Current V OH = 4.5V –2 –4 — mA 5V VT Output Sink Current V OL = 0.5V 1 2 — mA V IH "H" Input Voltage 5V — 3.5 — 5 V V IL "L" Input Voltage 5V — 0 — 1 V F OSC Oscillator Frequency 10V R OSC = 330kΩ DECODER OSCILLATOR FREQUENCY VS SUPPLY VOLTAGE Min. Typ. Max. Unit — 100 — kHz 300 275 250 120k 225 200 150k Fosc (kHz) 175 150 125 180k 220k 270k Rosc (ohms) 100 75 50 25 330k 390k 470k 560k 680k 820k 1M 1.5M 2M 2 3 4 5 6 7 8 9 10 11 12 12.5 VDD (VDC)
- Page 1: Holtek HT658/S Data Sheet FEATURES
- Page 5 and 6: Holtek HT658/S Data Sheet Page 5 EN
<strong>Holtek</strong> <strong>HT658</strong>/S <strong>Data</strong> <strong>Sheet</strong> Page 3<br />
ABSOLUTE MAXIMUM RATINGS*<br />
Supply Voltage .............. –0.3V to 13V Storage Temperature................. –50°C to 125°C<br />
Input Voltage..................VSS–0.3V to VDD+0.3V Operating Temperature............... –20°C to 75°C<br />
*Note: Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to the<br />
device. These are stress ratings only. Functional operation of this device at these or any other conditions<br />
above those indicated in the operational sections of this specification is not implied and exposure to absolute<br />
maximum rating conditions for extened periods may affect device reliability.<br />
ELECTRICAL CHARACTERISTICS<br />
Symbol<br />
V DD<br />
V DD Operating Voltage — — 3 — 12 V<br />
I STB<br />
Standby Current<br />
I DD Operating Current 5V<br />
I O<br />
I VT<br />
Parameter<br />
<strong>Data</strong> Output Source Current<br />
(D10-D17)<br />
<strong>Data</strong> Output Sink Current<br />
(D10-D17)<br />
5V<br />
Oscillator Stops<br />
— 0.1 1 µA<br />
12V — 2 4 µA<br />
5V<br />
Test Conditions<br />
Conditions<br />
No Load<br />
F OSC = 100kHz<br />
— 0.2 1 mA<br />
V OH= 4.5V –0.5 –1 — mA<br />
V OL= 0.5V 0.5 1 — mA<br />
VT Output Source Current<br />
V OH = 4.5V –2 –4 — mA<br />
5V<br />
VT Output Sink Current V OL = 0.5V 1 2 — mA<br />
V IH "H" Input Voltage 5V — 3.5 — 5 V<br />
V IL "L" Input Voltage 5V — 0 — 1 V<br />
F OSC Oscillator Frequency 10V R OSC = 330kΩ<br />
DECODER OSCILLATOR FREQUENCY VS SUPPLY VOLTAGE<br />
Min. Typ. Max. Unit<br />
— 100 — kHz<br />
300<br />
275<br />
250<br />
120k<br />
225<br />
200<br />
150k<br />
Fosc (kHz)<br />
175<br />
150<br />
125<br />
180k<br />
220k<br />
270k<br />
Rosc (ohms)<br />
100<br />
75<br />
50<br />
25<br />
330k<br />
390k<br />
470k<br />
560k<br />
680k<br />
820k<br />
1M<br />
1.5M<br />
2M<br />
2 3 4 5 6 7 8 9 10 11 12 12.5<br />
VDD (VDC)
Change language