This part is a kind of semiconductor called CD4514BC.

Function of this product has 4-Bit Latched/4-to-16 Line Decoders.

Manufacturers : National Semiconductor

Image and pinout :

Some of the text within the PDF file :

CD4514BM CD4514BC CD4515BM CD4515BC 4-Bit Latched 4-to-16 Line Decoders February 1988 CD4514BM CD4514BC CD4515BM CD4515BC 4-Bit Latched 4-to-16 Line Decoders General Description The CD4514B and CD4515B are 4-to-16 line decoders with latched inputs implemented with complementary MOS (CMOS) circuits constructed with N- and P-channel enhancement mode transistors These circuits are primarily used in decoding applications where low power dissipation and or high noise immunity is required The CD4514B (output active high option) presents a logical ‘‘1’’ at the selected output whereas the CD4515B presents a logical ‘‘0’’ at the selected output The input latches are R – S type flip-flops which hold the last input data presented prior to the strobe transition from ‘‘1’’ t [ ... ]

CD4514BC PDF Datasheet Download