This part is a kind of semiconductor called AD009-041.

Function of this product has Remote controller.

Manufacturers : ETC

Image and pinout :

Some of the text within the PDF file :

AD009-041 AD009-041 Remote controller 1. General Descriptions The AD009-041 a high-performance 4-bit RISC micro-controller embedded up to 2KX12 bits OTP, 32X4 bits SRAM, 10 Input/Output pins, one input pin and built-in one IR LED drive pin. it’s flexible and costeffective solution for remote control of TV, Fans, Air conditioners ... etc. 2. Features MCU Operating voltage: 1.8V to 3.6V Operation frequency: MCU run 2 MIPS Memory Size  Program ROM size: 2K X12 bits (OTP type) SRAM size: 32x4 bits  Wake up function for power-down mode  HALT mode wake up source: RTC timer overflow or PA0~3, PB0~3 and PD0~3 edge trigger.  Provided 10 input /output pins: each I/O has bit programmable as input or output port, these 10 I/Os also provided edge trigger wake up function and pull up resi [ ... ]

AD009-041 PDF Datasheet Download