New Original ATMEGA328P-AU Micro-controller SMD QFP-32 Package TQFP32

8-bit Microcontrollers - MCU 32KB In-system Flash 20MHz 1.8V-5.5V
Op.Temperature:-40 ~ 85 degree
Series: ATMega

datasheet: http://www.atmel.com/Images/Atmel-8271-8-bit-AVR-Microcontroller-ATmega48A-48PA-88A-88PA-168A-168PA-328-328P_datasheet_Complete.pdf