This part is a kind of semiconductor called PIC16F874A.

Function of this product has (PIC16F873A - PIC16F877A) 28/40/44-Pin Enhanced Flash Microcontrollers.

Manufacturers : Microchip Technology

Image and pinout :

Some of the text within the PDF file :

PIC16F87XA 28/40/44-Pin Enhanced Flash Microcontrollers Devices Included in this Data Sheet: • PIC16F873A • PIC16F874A • PIC16F876A • PIC16F877A High-Performance RISC CPU: • Only 35 single-word instructions to learn • All single-cycle instructions except for program branches, which are two-cycle • Operating speed: DC – 20 MHz clock input DC – 200 ns instruction cycle • Up to 8K x 14 words of Flash Program Memory, Up to 368 x 8 bytes of Data Memory (RAM), Up to 256 x 8 bytes of EEPROM Data Memory • Pinout compatible to other 28-pin or 40/44-pin PIC16CXXX and PIC16FXXX microcontrollers Peripheral Features: • Timer0: 8-bit timer/counter with 8-bit prescaler • Timer1: 16-bit timer/counter with prescaler, can be incremented during Sleep via external crystal/clock [ ... ]

PIC16F874A PDF Datasheet Download