ATmega32A Datasheet - Sunrom Technologies

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<strong>ATmega32A</strong>T A = -40°C to 85°C, V CC = 2.7 V to 5.5 V (Unless Otherwise Noted)Symbol Parameter Condition Min Typ Max UnitsI CCV ACIOI ACLKt ACPDPower Supply CurrentActive 1MHz, V CC = 3V 0.6 mAActive 4MHz, V CC = 3V 2.1 5 mAActive 8MHz, V CC = 5V 7.5 15 mAIdle 1MHz, V CC = 3V 0.2 mAIdle 4MHz, V CC = 3V 0.6 2.5 mAIdle 8MHz, V CC = 5V 2.8 8 mAPower-down Mode (5) WDT enabled, V CC = 3V < 10 20 µAWDT disabled, V CC = 3V < 1 10 µAAnalog ComparatorInput Offset VoltageAnalog ComparatorInput Leakage CurrentAnalog ComparatorPropagation DelayV CC = 5VV in = V CC /2V CC = 5VV in = V CC /2V CC = 2.7VV CC = 4.0V40 mV-50 50 nANotes: 1. “Max” means the highest value where the pin is guaranteed to be read as low2. “Min” means the lowest value where the pin is guaranteed to be read as high3. Although each I/O port can sink more than the test conditions (20 mA at Vcc = 5V, 10 mA at Vcc = 3V) under steady stateconditions (non-transient), the following must be observed:PDIP Package:1] The sum of all IOL, for all ports, should not exceed 200 mA.2] The sum of all IOL, for port A0 - A7, should not exceed 100 mA.3] The sum of all IOL, for ports B0 - B7,C0 - C7, D0 - D7 and XTAL2, should not exceed 100 mA.TQFP and QFN/MLF Package:1] The sum of all IOL, for all ports, should not exceed 400 mA.2] The sum of all IOL, for ports A0 - A7, should not exceed 100 mA.3] The sum of all IOL, for ports B0 - B4, should not exceed 100 mA.4] The sum of all IOL, for ports B3 - B7, XTAL2, D0 - D2, should not exceed 100 mA.5] The sum of all IOL, for ports D3 - D7, should not exceed 100 mA.6] The sum of all IOL, for ports C0 - C7, should not exceed 100 mA.If IOL exceeds the test condition, VOL may exceed the related specification. Pins are not guaranteed to sink current greaterthan the listed test condition.4. Although each I/O port can source more than the test conditions (20 mA at Vcc = 5V, 10 mA at Vcc = 3V) under steady stateconditions (non-transient), the following must be observed:PDIP Package:1] The sum of all IOH, for all ports, should not exceed 200 mA.2] The sum of all IOH, for port A0 - A7, should not exceed 100 mA.3] The sum of all IOH, for ports B0 - B7,C0 - C7, D0 - D7 and XTAL2, should not exceed 100 mA.TQFP and QFN/MLF Package:1] The sum of all IOH, for all ports, should not exceed 400 mA.2] The sum of all IOH, for ports A0 - A7, should not exceed 100 mA.3] The sum of all IOH, for ports B0 - B4, should not exceed 100 mA.4] The sum of all IOH, for ports B3 - B7, XTAL2, D0 - D2, should not exceed 100 mA.5] The sum of all IOH, for ports D3 - D7, should not exceed 100 mA.6] The sum of all IOH, for ports C0 - C7, should not exceed 100 mA.If IOH exceeds the test condition, VOH may exceed therelated specification. Pins are not guaranteed to source current greater than the listed test condition.5. Minimum V CC for Power-down is 2.5V.750500ns8155C–AVR–02/11298
<strong>ATmega32A</strong>27.3 Speed GradesFigure 27-1. Maximum Frequency vs. V CC .16 MHz8 MHzSafe Operating Area2.7V 4.5V 5.5V27.4 Clock Characteristics27.4.1 External Clock Drive WaveformsFigure 27-2.External Clock Drive WaveformsV IL1V IH127.4.2 External Clock DriveFigure 27-3. External Clock DriveV CC = 2.7V to 5.5V V CC = 4.5V to 5.5VSymbol ParameterMin Max Min Max Units1/t CLCL Oscillator Frequency 0 8 0 16 MHzt CLCL Clock Period 125 62.5 nst CHCX High Time 50 25 nst CLCX Low Time 50 25 ns8155C–AVR–02/11299
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ATmega32A2. OverviewThe Atmel ® AV
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ATmega32Ametrical drive characteris
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ATmega32A6.3.1 SREG - AVR Status Re
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ATmega32A6.4.1 The X-register, Y-re
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ATmega32AFigure 6-5.Single Cycle AL
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ATmega32AA return from an interrupt
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ATmega32AFigure 7-2.Data Memory Map
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ATmega32AEEPROM data corruption can
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ATmega32ASupport - Read-While-Write
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ATmega32AThe next code examples sho
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ATmega32A8.1.3 Flash Clock - clk FL
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ATmega32AThe CKSEL0 Fuse together w
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ATmega32A8.7 Calibrated Internal RC
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ATmega32A8.10 Register Description8
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ATmega32Aface, Timer/Counters, Watc
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ATmega32A9.8.4 Internal Voltage Ref
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ATmega32A10. System Control and Res
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ATmega32AFigure 10-3.MCU Start-up,
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ATmega32AADC is used. To reduce pow
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ATmega32AThe WDP2, WDP1, and WDP0 b
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ATmega32Athe case if the Reset Vect
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ATmega32A$382D out SPL,r16$382E sei
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ATmega32A12. I/O Ports12.1 Overview
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ATmega32AIf PORTxn is written logic
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ATmega32AThe following code example
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ATmega32AFigure 12-5. Alternate Por
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ATmega32ATable 12-3.Table 12-4 and
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ATmega32A• MOSI - Port B, Bit 5MO
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ATmega32A12.3.3 Alternate Functions
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ATmega32ATable 12-11. Overriding Si
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ATmega32A12.4.13 PIND - Port D Inpu
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ATmega32Alow level interrupt is sel
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ATmega32A14. 8-bit Timer/Counter0 w
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ATmega32ASignal description (intern
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ATmega32Athe OCR0 value, the compar
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ATmega32AFigure 14-5.CTC Mode, Timi
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ATmega32AThe PWM resolution for the
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ATmega32AFigure 14-9. Timer/Counter
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ATmega32ATable 14-2. Waveform Gener
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ATmega32AThe Output Compare Registe
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ATmega32AFigure 15-1.T1/T0 Pin Samp
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ATmega32A16. 16-bit Timer/Counter11
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ATmega32Aput Compare Units” on pa
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ATmega32Athe main code and the inte
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ATmega32A16.5 Counter UnitThe main
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ATmega32AThe ICR1 Register can only
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ATmega32ARegister to either TOP or
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ATmega32AA change of the COM1x1:0 b
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ATmega32AThe PWM resolution for the
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ATmega32AUsing the ICR1 Register fo
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ATmega32ATable 16-3 shows the COM1x
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ATmega32A• Bit 7 - ICNC1: Input C
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ATmega32AThe Input Capture is updat
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ATmega32A17. 8-bit Timer/Counter2 w
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ATmega32AFigure 17-2.DATA BUSCounte
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ATmega32AThe setup of the OC2 shoul
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ATmega32AFigure 17-5.CTC Mode, Timi
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ATmega32A17.7.4 Phase Correct PWM M
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ATmega32AFigure 17-9. Timer/Counter
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ATmega32A• If Timer/Counter2 is u
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ATmega32AA FOC2 strobe will not gen
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ATmega32A17.11.2 TCNT2 - Timer/Coun
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ATmega32A17.11.7 SFIOR - Special Fu
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ATmega32Acommunication cycle when p
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ATmega32AAssembly Code Example (1)S
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ATmega32A18.3 SS Pin Functionality1
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ATmega32A18.3.4 SPSR - SPI Status R
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ATmega32A19. USART19.1 Features19.2
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ATmega32A19.2.1 AVR USART vs. AVR U
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ATmega32ATable 19-1.Operating ModeA
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ATmega32AThe frame format used by t
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ATmega32AThe Transmit Complete (TXC
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ATmega32AAssembly Code Example (1)U
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ATmega32AThe PE bit is set if the n
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ATmega32AFigure 19-7.Stop Bit Sampl
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ATmega32AIf the receiver is set up
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ATmega32A• Bit 0 - MPCM: Multi-pr
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ATmega32ATable 19-6.USBS Bit Settin
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ATmega32ATable 19-9.BaudRate(bps)Ex
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ATmega32ATable 19-11.BaudRate(bps)E
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ATmega32A20. Two-wire Serial Interf
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ATmega32Acondition is issued betwee
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ATmega32AFigure 20-6.Typical Data T
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ATmega32AFigure 20-9.Overview of th
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ATmega32A20.6 Using the TWIThe AVR
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ATmega32AAssembly code example C ex
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ATmega32ATable 20-2.Status Code(TWS
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ATmega32AFigure 20-12. Formats and
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ATmega32AThe upper seven bits are t
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ATmega32AFigure 20-16. Formats and
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ATmega32A4. The transfer must be fi
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ATmega32A20.9.2 TWCR - TWI Control
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ATmega32A20.9.5 TWAR - TWI (Slave)
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ATmega32A22. Analog to Digital Conv
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ATmega32AIf differential channels a
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ATmega32Ain ADCSRA. The prescaler k
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ATmega32ATable 22-1.ConditionADC Co
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ATmega32AIf the user has a fixed vo
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ATmega32AFigure 22-9.ADC Power Conn
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INLATmega32AFigure 22-12. Integral
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ATmega32ATable 22-2.Correlation bet
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ATmega32ATable 22-4.MUX4:011010 ADC
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ATmega32A22.9.4 SFIOR - Special Fun
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ATmega32A• TMS: Test Mode Select.
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ATmega32AThe TMS input must be held
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ATmega32A23.8 Using the JTAG Progra
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ATmega32A24.3.1 Bypass RegisterThe
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ATmega32AThe active states are:•
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ATmega32AFigure 24-4. General Port
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ATmega32AFigure 24-7.Boundary-scan
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ATmega32ATable 24-4.SignalNameBound
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ATmega32ATable 24-5.SignalNameBound
Page 247 and 248: ATmega32ATable 24-6.Algorithm for U
Page 249 and 250: ATmega32ATable 24-7. ATmega32A Boun
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Page 253 and 254: ATmega32A25. Boot Loader Support -
Page 255 and 256: ATmega32AFigure 25-1.Read-While-Wri
Page 257 and 258: ATmega32Amemory by SPM instruction.
Page 259 and 260: ATmega32ANotes: 1. The different va
Page 261 and 262: ATmega32A25.8.8 EEPROM Write Preven
Page 263 and 264: ATmega32Asbiw loophi:looplo, 2brne
Page 265 and 266: ATmega32A25.9 Register Description2
Page 267 and 268: ATmega32A26. Memory Programming26.1
Page 269 and 270: ATmega32ATable 26-4.Fuse Low ByteFu
Page 271 and 272: ATmega32ATable 26-7.Signal Name inP
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Page 287 and 288: ATmega32A• Update-DR: The program
Page 289 and 290: ATmega32AFigure 26-14. Programming
Page 291 and 292: ATmega32AFigure 26-15. JTAG Program
Page 293 and 294: ATmega32AFigure 26-17. Virtual Flas
Page 295 and 296: ATmega32A26.10.18 Reading the Flash
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Page 301 and 302: ATmega32Aantees that a Brown-out Re
Page 303 and 304: ATmega32ATable 27-3. SPI Timing Par
Page 305 and 306: ATmega32ATable 27-5. ADC Characteri
Page 307 and 308: ATmega32A28. Typical Characteristic
Page 309 and 310: ATmega32AFigure 28-4.Active Supply
Page 311 and 312: ATmega32AFigure 28-8.Idle Supply Cu
Page 313 and 314: ATmega32AFigure 28-12. Idle Supply
Page 315 and 316: ATmega32A28.5 Standby Supply Curren
Page 317 and 318: ATmega32AFigure 28-20. Reset Pull-u
Page 319 and 320: ATmega32AFigure 28-24. I/O Pin Sink
Page 321 and 322: ATmega32AFigure 28-28. Reset Input
Page 323 and 324: ATmega32AFigure 28-32. BOD Threshol
Page 325 and 326: ATmega32AFigure 28-36. Calibrated 8
Page 331 and 332: ATmega32AFigure 28-48. ADC Current
Page 333 and 334: ATmega32A28.12 Current Consumption
Page 335 and 336: ATmega32A29. Register SummaryAddres
Page 337 and 338: ATmega32A30. Instruction Set Summar
Page 339 and 340: ATmega32AMnemonics Operands Descrip
Page 341 and 342: ATmega32A32. Packaging Information3
Page 343 and 344: ATmega32A32.3 44M1DMarked Pin# 1 ID
Page 345 and 346: ATmega32A34. Datasheet Revision His
Page 347 and 348: ATmega32A8.9 Timer/Counter Oscillat
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ATmega32A18.2 Overview ............
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ATmega32A26 Memory Programming ....
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Atmel Corporation2325 Orchard Parkw
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ATmega32A Datasheet - Sunrom Technologies

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