DM74LS158 - Quad 2-Line to 1-Line Data Selectors/Multiplexers
Fairchild (now onsemi)
Download the DM74LS158 datasheet PDF.
This datasheet also covers the DM74LS157 variant, as both devices belong to the same quad 2-line to 1-line data selectors/multiplexers 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 Buffered inputs and outputs s Typical Propagation Time
DM74LS157 9 ns DM74LS158 7 ns s Typical Power Dissipation DM74LS157 49 mW DM74LS158 24 mW
Ordering Code:
Order Number Package Number
Package.
Note: The manufacturer provides a single datasheet file (DM74LS157_FairchildSemiconductor.pdf) that lists specifications for multiple related part numbers.
Full PDF Text Transcription for DM74LS158 (Reference)
Note: Below is a high-fidelity text extraction (approx. 800 characters) for
DM74LS158. For precise diagrams, and layout, please refer to the original PDF.
DM74LS157 • DM74LS158 Quad 2-Line to 1-Line Data Selectors/Multiplexers September 1986 Revised April 2000 DM74LS157 • DM74LS158 Quad 2-Line to 1-Line Data Selectors/Multi...
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2000 DM74LS157 • DM74LS158 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. The DM74LS157 presents true data whereas the DM74LS158 presents inverted data to minimize propagation delay time.
DM74LS158 Datasheet
