This part is a kind of semiconductor called 9312.

Function of this product has One of Eight Line Data Selectors/Multiplexers.

Manufacturers : National Semiconductor

Image and pinout :

Some of the text within the PDF file :

9312 DM9312 One of Eight Line Data Selectors Multiplexers June 1989 9312 DM9312 One of Eight Line Data Selectors Multiplexers General Description These data selectors multiplexers contain inverter drivers to supply full complementary on-chip binary decoded data selection The 9312 is a single 8-bit multiplexer with complementary outputs and a strobe control When the strobe is low the function is enabled When a high logic level is applied to the strobe the output is forced to the logic zero state regardless of the logic level of the data inputs Features Y Y Y Y Selects one-of-eight data sources Performs parallel to serial conversion Strobe controlled outputs Complementary outputs Connection Diagram Dual-In-Line Package TL F 6605 – 1 Order Number 9312DMQB 9312FMQB or DM9312N See NS P [ ... ]

9312 PDF Datasheet Download