SN54ALS157A, SN54ALS158 SN74ALS157A, SN74ALS158, SN74AS157, SN74AS158 QUADRUPLE 1ĆOFĆ2 DATA SELECTORS/MULTIPLEXERS SDAS081C − APRIL 1982 − REVISED DECEMBER 1994 • Buffered Inputs and Outputs • Package Options Include Plastic Small-Outline (D) Packages, Ceramic Chip Carriers (FK), and Standard Plastic (N) and Ceramic (J) 300-mil DIPs description These data selectors/multiplexers contain inverters and drivers to supply full data selection to the four output gates.
A separate strobe (G) input is provided.
A 4-bit word is selected from one of two sources and is routed to the four outputs.
The ′ALS157A and SN74AS157 present true data.
The ′ALS158 and SN74AS158 present inverted data to minimize p...

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