ATMega328 – TQFP

1.8-5.5V operating range
Up to 20MHz
Part: ATMEGA328P-AU
32kB Flash program memory
1kB EEPROM
2kB Internal SRAM
2 8-bit Timer/Counters
1 16-bit Timer/Counter
RTC with separate oscillator
6 PWM Channels
8 Channel 10-bit ADC
Serial USART
Master/Slave SPI interface
2-wire (I2C) interface
Watchdog timer
Analog comparator
23 IO lines
Data retention: 20 years at 85C/ 100 years at 25C