This part is a kind of semiconductor called HS2240B.

Function of this product has OTP Encoder.

Manufacturers : SilvanChip

Image and pinout :

Some of the text within the PDF file :

HS2240B OTP Encoder HS2240B Description: (Compatible:EV1527,RT1527,FP1527) HS2240B is OTP Encoder utilizing CMOS technology process. HS2240B hai a maximum of 20 bits providing up to 1 million codes.It can reduce any code collision and unauthorized code scanning possibilities. HS2240B Features: (Compatible:EV1527,RT1527,FP1527) CMOS Technology Low stand by Current:1.0uA Wide range of Operating Voltage:Vcc 3.0～ 12V Up to 4 data pins Total 1048576 address codes Single Resistor Oscillator Available in DIP and SOP Package HS2240B Pin out: (Compatible:EV1527,RT1527,FP1527) HS2240B Pin Description: (Compatible:EV1527,RT1527,FP1527) Pin No. 1 2 3 4 5 6 7 8 Name OCSI Vcc GND Dout K0 K1 K2 K3 Description Oscillator input pull-up R to Vcc Positive power supply Ground Data output pin Data input w [ ... ]

HS2240B PDF Datasheet Download