Summary
This is Atmel's high performance, low power 8-bit AVR ATMega328P microcontroller in a pint-sized TQFP package.
Specification
operating Volatage:1.8-5.5V
Maximum Operating Frequency: 20MHz
Flash:32kB
EEPROM:1kB
Internal SRAM:2kB
8-bit Timer/Counters:2
16-bit Timer/Counter:1
RTC with separate oscillator
6 PWM Channels
8 Channel 10-bit ADC
