This part is a kind of semiconductor called ATTINY15L.

Function of this product has 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 – 90 Powerful Instructions – Most Single Clock Cycle Execution – 32 x 8 General Purpose Working Registers – Fully Static Operation • Non-volatile Program and Data Memories – 1K Byte In-System Programmable Flash Program Memory Endurance: 1,000 Write/Erase Cycles – 64 Bytes EEPROM Endurance: 100,000 Write/Erase Cycles – Programming Lock for Flash Program Data Security • Peripheral Features – Interrupt and Wake-up on Pin Change – Two 8-bit Timer/Counters with Separate Prescalers – One 150 kHz, 8-bit High-speed PWM Output – 4-channel 10-bit ADC One Differential Voltage Input with Optional Gain of 20x – On-chip Analog Comparator – Programmable Watchdog Timer with On- [ ... ]

ATTINY15L PDF Datasheet Download