ATMEGA328P-AU TQFP

ATMEGA328P-AU TQFP " SMD " with Arduino 

AVR 8-bit Microcontroller with 32K Bytes In-System Programmable Flash

Features:
High Performance, Low Power AVR® 8-Bit Microcontroller
Microcontroller that is pre-loaded with the Arduino UNO 16MHz bootloader.
Advanced RISC Architecture
Digtal 14 Pin I\O
Analog 6 Pin input
131 Powerful Instructions – Most Single Clock Cycle Execution
32 x 8 General Purpose Working Registers
Fully Static Operation
Up to 20 MIPS Throughput at 20 MHz
On-chip 2-cycle Multiplier

Datasheet