54157 Datasheet | National Semiconductor

54157 DM54157 DM74157 Quad 2-Line to 1-Line Data Selectors Multiplexers June 1989 54157 DM54157 DM74157 Quad 2-Line to 1-Line Data Selectors Multiplexers General Description These data selectors multiplexers contain inverters and drivers to supply full on-chip data selection to the four output gates A separate strobe input is provided A 4-bit word is selected from one of two sources and is routed to the four outputs Features Applications Buffered inputs and outputs Typical propagation time 9 ns Typical power dissipation 150 m W Alternate Military Aerospace device (54157) is available Contact a National Semiconductor Sales Office Distributor for specifications Expand any data input point Multiplex dual data buses Generate four functions of two variables (one variable is mon) Source programmable counters Connection Diagram Dual-In-Line Package TL F 6550 - 1 Order Number 54157DMQB 54157FMQB DM54157J DM54157W or DM74157N See NS Package Number J16A N16E or W16A Function Table Inputs Strobe H L L L L Select X L L H H A X L H X X B X X X L H L L H L H Output Y H e High Level L e Low Level X e Don’t Care C1995 National Semiconductor Corporation TL F 6550 RRD-B30M105 Printed in U S...