This part is a kind of semiconductor called CD4081BC.
Function of this product has Quad 2-Input AND Buffered B Series Gate.
Manufacturers : Fairchild Semiconductor
Image and pinout :

Some of the text within the PDF file :
CD4071BC • CD4081BC Quad 2-Input OR Buffered B Series Gate • Quad 2-Input AND Buffered B Series Gate October 1987 Revised January 1999 CD4071BC • CD4081BC Quad 2-Input OR Buffered B Series Gate • Quad 2-Input AND Buffered B Series Gate General Description The CD4071BC and CD4081BC quad gates are monolithic complementary MOS (CMOS) integrated circuits constructed with N- and P-channel enhancement mode transistors. They have equal source and sink current capabilities and conform to standard B series output drive. The devices also have buffered outputs which improve transfer characteristics by providing very high gain. All inputs protected against static discharge with diodes to VDD and VSS. Features s Low power TTL compatibility: Fan out of 2 driving 74L or 1 driving 74LS s 5V�� [ ... ]
CD4081BC PDF Datasheet Download
