SL74HCT157 Description
SL74HCT157 Quad 2-Input Data Selectors/Multiplexer High-Performance Silicon-Gate CMOS The SL74HCT157 is identical in pinout to the LS/ALS157. This device may be used as a level converter for interfacing TTL or NMOS outputs to High Speed CMOS inputs. This device routes 2 nibbles (A or B) to a single port (Y) as determined by the Select input.