This part is a kind of semiconductor called ADAM24P20.

Function of this product has 4-BIT SINGLE-CHIP MICROCONTROLLERS.

Manufacturers : ABOV

Image and pinout :

Some of the text within the PDF file :

October 20, 2009 Ver 0.5 4-BIT SINGLE CHIP MICROCOMPUTERS ADAM24PXX USER`S MANUAL • ADAM24P08 • ADAM24P15 • ADAM24P16 • ADAM24P20 • ADAM24P20S • ADAM24P20T 1. Overview ADAM24PXX 1. OVERVIEW The ADAM24PXX is remote control transmitter which uses CMOS technology. The ADAM24PXX is suitable for remote control of TV, VCR, FANS, Air-conditioners, Audio Equipments, Toys, Games etc. The ADAM24PXX is MTP version. 1.1. Features ■ Program memory (MTP) ● 4,096 bytes (4,096 x 8bit) [ multi-programmable by 1K-Byte, 2K-byte or 4K-byte) ■ Data memory (RAM) ● 32 nibble (32 x 4bit) ■ 3 levels of subroutine nesting ■ 8-bit Table Read Instruction ■ Oscillator Type (Operating frequency) ● Internal RC Oscillator (typically 3.64MHz ±2%) ■ Instruction cycle ● fOSC/48 ■ Stop m [ ... ]

ADAM24P20 PDF Datasheet Download