Atmel

ATMega32 - 8 bit AVR Microcontroller with 32k Bytes In-System Programmable Flash

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Features High-performance, Low-power AVR 8-bit Microcontroller Advanced RISC Architecture - 131 Powerful Instructions - Most Single Clock Cycle Execution - 32 x 8 General Purpose Working Registers - Up to 16 MIPS Throughput at 16MHz - Fully Static Operation - On-chip 2-cycle Multiplier Non-volatile Program and Data Memories - 32k Bytes of In-System Self-Programmable Flash - Optional Boot Code Section with Independent Lock Bits - 1024K Bytes EEPROM - 2K Bytes Internal SRAM - Programming Lock for Software Security JTAG (IEEE std. 1149.1 Compliant) Interface - Boundary-scan Capabilities According to the JTAG Standard - Extensive On-chip Debug Support - Programming of Flash, EEPROM, Fuses, and Lock Bits through the JTAGS Interface Peripheral Features - On-chip Analog Comparator - Programmable Watchdog Timer with Seperate On-chip Oscillator - Master/Slave SPI Serial Interface - Two 8-bit Timer/Counters with Separate Prescalar, Compare - One 16-bit TImer/Counter with Seperate Prescaler, Compare and Capture mode - Real Time Counter with Seperate Oscillator - Four PWM Channels - Programmable Serial USART - 8-channel, 10-bit ADC - Byte-oriented Two-wire Serial Interface - Four PWM Channels - Dual Programmable Serial USARTs Special Mircocontroller Features - Power-on Reset and Programmable Brown-out Detection - Internal Calibrated RC Oscillator - External and Internal Interrupt Sources - Six Sleep Modes: Idle, ADC Noise Reduction, Power-save, Power-down, Standby, and Extended Standby I/O and Packages - 32 Programmable I/O Lines - 40-pin PDIP, 44-lead TQFP, and 44-pad MLF Operating Voltages - 4.5-5.5V for ATmega32 Speed Grades - 0-16 MHz for ATmega32

Pin Description Pin Number Description 1 (XCK/T0) PB0 2 (T1) PB1 3 (INT2/AIN0) PB2 4 (OC0/AIN1) PB3 5 (SS) PB4 6 (MOSI) PB5 7 (MISO) PB6 8 (SCK) PB7 9 RESET 10 VCC 11 GND 12 XTAL2 13 XTAL1 14 (RXD) PD0 15 (TXD) PD1 16 (INT0) PD2 17 (INT1) PD3 18 (OC1B) PD4 19 (OC1A) PD5 20 (ICP1) PD6 21 (OC2) PD7 22 (SCL) PC0 23 (SDA) PC1 24 (TCK) PC2 25 (TMS) PC3 26 (TDO) PC4 27 PC5 (TDI) 28 PC6 (TOSC1) 29 PC7 (TOSC2) 30 AVCC 31 GND 32 AREF 33 PA7 (ADC7) 34 PA6 (ADC6) 35 PA5 (ADC5) 36 PA4 (ADC4) 37 PA3 (ADC3) 38 PA2 (ADC2) 39 PA1 (ADC1) 40 PA0 (ADC0)

Pin Layout Dimensional Drawing

Technical Data Data Sheet Atmel - Data Sheet for ATMega32/32L Application Notes Atmel - AVR Application Notes