This part is a kind of semiconductor called 74LS150.

Function of this product has Data Selectors/Multiplexers.

Manufacturers : Fairchild Semiconductor

Image and pinout :

Some of the text within the PDF file :

DM74150 Data Selectors/Multiplexers September 1986 Revised June 2001 DM74150 Data Selectors/Multiplexers General Description These data selectors/multiplexers contain full on-chip decoding to select the desired data source. The DM74150 selects one-of-sixteen data sources. The DM74150 has a strobe input which must be at a LOW logic level to enable these devices. A HIGH level at the strobe forces the W output HIGH and the Y output (as applicable) LOW. The DM74150 features an inverted (W) output only. Features s 150 selects one-of-sixteen data lines s Performs parallel-to-serial conversion s Permits multiplexing from N lines to one line s Also for use as Boolean function generator s Typical average propagation delay time, data input to W output: 11 ns s Typical power dissipation: 200 mW O [ ... ]

74LS150 PDF Datasheet Download