ATXMEGA256A3U-AU

Microcontroller Operating temperature: -40...85 °C Power supply: 1.6...3.6 V No. of I/Os: 50 No. of timers: 7 Bus width: 8/16 Bit Extras: USB Package: TQFP-64 ADC resolution: 12 bit EEPROM: 4 KB Flash memory: 256 KB SRAM: 16 KB