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CPU 8-bit AVR
Number of Pins 40
Operating Voltage (V) +4.5 to +5.5 V (+5.5V being absolute maximum)
Number of I/O pins 32
Communication Interface JTAG Interface(24,25,26,27 PINS)[Can be used for programming this controller]

Master/Slave SPI Serial Interface(5,6,7,8 PINS) [Can be used for programming this controller]

Programmable Serial USART(14,15 PINS) [Can be used for programming this controller]

Two-wire Serial Interface(22,23 PINS)[Can be used to connect peripheral devices like sensors and LCDs]

ADC Module 8 channels , 10-bit resolution ADC
Timer Module Two 8-bit counters, One 16-bit counter [Total three]
Analog Comparators 1
DAC Module Nil
PWM channels 4
External Oscillator 0-8MHz for ATMEGA32L

0-16MHz for ATMEGA32

Internal Oscillator 0-8MHz? Calibrated Internal Oscillator
Program Memory Type Flash
Program Memory (KB) 32Kbytes[10000 write/erase cycles]
CPU Speed (MIPS) 16 MIPS
RAM Bytes 2KBytes
Data EEPROM 1024 Bytes
Watchdog Timer ?Programmable Watchdog Timer with Separate On-chip? Oscillator
Power Save Modes Six Modes[Idle, ADC Noise Reduction, Power-save, Power-down, Standby and Extended Standby]
Operating Temperature -55?C to +125?C(+125 being absolute maximum, -55 being absolute minimum)