This part is a kind of semiconductor called ATMEGA324.

Function of this product has (ATMEGAxx4) 8-bit Microcontroller.

Manufacturers : ATMEL Corporation

Image and pinout :

Some of the text within the PDF file :

Features • High-performance, Low-power AVR® 8-bit Microcontroller • Advanced RISC Architecture – 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 Nonvolatile Program and Data Memories – 16/32/64K Bytes of In-System Self-Programmable Flash Endurance: 10,000 Write/Erase Cycles – Optional Boot Code Section with Independent Lock Bits In-System Programming by On-chip Boot Program True Read-While-Write Operation – 512B/1K/2K Bytes EEPROM Endurance: 100,000 Write/Erase Cycles – 1/2/4K Bytes Internal SRAM – Programming Lock for Software Security JTAG (IEEE std. 1149.1 Compliant) Interface – Boundary-scan [ ... ]

ATMEGA324 PDF Datasheet Download