This part is a kind of semiconductor called ATINY13.

Function of this product has 8-Bit Microcontroller.

Manufacturers : Atmel

Image and pinout :

Some of the text within the PDF file :

Features • High Performance, Low Power AVR® 8-Bit Microcontroller • Advanced RISC Architecture – 120 Powerful Instructions – Most Single Clock Cycle Execution – 32 x 8 General Purpose Working Registers – Fully Static Operation – Up to 20 MIPS Througput at 20 MHz High Endurance Non-volatile Memory segments – 1K Bytes of In-System Self-programmable Flash program memory – 64 Bytes EEPROM – 64K Bytes Internal SRAM – Write/Erase cyles: 10,000 Flash/100,000 EEPROM – Data retention: 20 years at 85°C/100 years at 25°C(1) – Optional Boot Code Section with Independent Lock Bits In-System Programming by On-chip Boot Program True Read-While-Write Operation – Programming Lock for Software Security Peripheral Features – One 8-bit Timer/Counter with P [ ... ]

ATINY13 PDF Datasheet Download