This part is a kind of semiconductor called ATTINY26.

Function of this product has 8-bit Microcontroller with 2K Bytes Flash.

Manufacturers : ATMEL Corporation

Image and pinout :

Some of the text within the PDF file :

Features • High-performance, Low-power AVR® 8-bit Microcontroller • RISC Architecture – 118 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 • Data and Non-volatile Program Memory – 2K Bytes of In-System Programmable Program Memory Flash Endurance: 10,000 Write/Erase Cycles – 128 Bytes of In-System Programmable EEPROM Endurance: 100,000 Write/Erase Cycles – 128 Bytes Internal SRAM – Programming Lock for Flash Program and EEPROM Data Security • Peripheral Features – 8-bit Timer/Counter with Separate Prescaler – 8-bit High-speed Timer with Separate Prescaler 2 High Frequency PWM Outputs with Separate Output Compare Registers Non-overlapping Inverted [ ... ]

ATTINY26 PDF Datasheet Download