This part is a kind of semiconductor called ATMEGA8535.

Function of this product has (ATMEGA8535 / ATMEGA8535L) 8-bit AVR 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 – 130 Powerful Instructions – Most Single Clock Cycle Execution – 32 x 8 General Purpose Working Registers – Fully Static Operation – Up to 16 MIPS Throughput at 16 MHz – On-chip 2-cycle Multiplier Nonvolatile Program and Data Memories – 8K 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 – 512 Bytes EEPROM Endurance: 100,000 Write/Erase Cycles – 512 Bytes Internal SRAM – Programming Lock for Software Security Peripheral Features – Two 8-bit Timer/Counters with Separate Prescalers and [ ... ]

ATMEGA8535 PDF Datasheet Download