Datasheet4U Logo Datasheet4U.com

DM74AS158 - Quad 1 of 2 Line Data Selector/Multiplexer

Download the DM74AS158 datasheet PDF. This datasheet also covers the DM74AS157 variant, as both devices belong to the same quad 1 of 2 line data selector/multiplexer family and are provided as variant models within a single manufacturer datasheet.

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.

Key Features

  • s Switching specifications at 50 pF s Switching specifications guaranteed over full temperature and VCC range s Advanced oxide-isolated, ion-implanted Schottky TTL process s Functionally and pin for pin compatible with Schottky, low power Schottky, and advanced low power Schottky TTL counterpart s Improved AC performance over Schottky, low power Schottky, and advanced low power Schottky counterparts s Expand any data input point s Multiplex dua.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (DM74AS157_FairchildSemiconductor.pdf) that lists specifications for multiple related part numbers.

📁 Similar Datasheet

Part Number Description Manufacturer
DM74AS1036A Quad 2 Input NOR Driver National
DM74AS240 (DM74AS240 - DM74AS244) Bus Driver / Receiver National Semiconductor
DM74AS241 (DM74AS240 - DM74AS244) Bus Driver / Receiver National Semiconductor
DM74AS242 (DM74AS240 - DM74AS244) Bus Driver / Receiver National Semiconductor
DM74AS243 (DM74AS240 - DM74AS244) Bus Driver / Receiver National Semiconductor

Other Datasheets by Fairchild (now onsemi)

Part Number Description
DM74AS157 Quad 1 of 2 Line Data Selector/Multiplexer
DM74AS10 Triple 3-Input NAND Gate
DM74AS1000A Quadruple 2-Input NAND Driver
DM74AS1004A Hex Inverting Driver
DM74AS1032A Quadruple 2-Input OR Driver

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
DM74AS157 • DM74AS158 Quad 1 of 2 Line Data Selector/Multiplexer April 1984 Revised March 2000 DM74AS157 • DM74AS158 Quad 1 of 2 Line Data Selector/Multiplexer 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. The AS157 presents true data whereas the AS158 presents inverted data to minimize propagation delay time.