ATmega32 Atmel Corporation, ATmega32 Datasheet - Page 341

• Manufacturer Part Number: ATmega32
• Manufacturer: Atmel Corporation

Specifications of ATmega32

• Flash (kbytes): 32 Kbytes
• Pin Count: 44
• Max. Operating Frequency: 16 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 16
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 32
• Ext Interrupts: 3
• Usb Speed: No
• Usb Interface: No
• Spi: 1
• Twi (i2c): 1
• Uart: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• Adc Resolution (bits): 10
• Adc Speed (ksps): 15
• Analog Comparators: 1
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 2
• Eeprom (bytes): 1024
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 2.7 to 5.5
• Operating Voltage (vcc): 2.7 to 5.5
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 3
• Output Compare Channels: 4
• Input Capture Channels: 1
• Pwm Channels: 4
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

Table of
Contents
2503Q–AVR–02/11
Features 1
Pin Configurations 2
Overview 3
Resources 6
Data Retention 6
About Code Examples 7
AVR CPU Core 8
ATmega32 Memories 16
System Clock and Clock Options 24
Power Management and Sleep Modes 32
Block Diagram 3
Pin Descriptions 4
Introduction 8
Architectural Overview 8
ALU – Arithmetic Logic Unit 9
Status Register 10
General Purpose Register File 11
Stack Pointer 12
Instruction Execution Timing 13
Reset and Interrupt Handling 13
In-System Reprogrammable Flash Program Memory 16
SRAM Data Memory 17
EEPROM Data Memory 18
I/O Memory 23
Clock Systems and their Distribution 24
Clock Sources 25
Default Clock Source 25
Crystal Oscillator 26
Low-frequency Crystal Oscillator 28
External RC Oscillator 28
Calibrated Internal RC Oscillator 29
External Clock 31
Timer/Counter Oscillator 31
Idle Mode 33
ADC Noise Reduction Mode 33
Power-down Mode 33
Power-save Mode 33
ATmega32(L)
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