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National Semiconductor 54F/74F158A Quad 2-Input Multiplexer Datasheet
This document is a datasheet for the National Semiconductor 54F/74F158A, a high-speed quad 2-input multiplexer. The device selects four bits of data from two sources using common Select and Enable inputs and presents the selected data in an inverted form at the outputs. It is available in various commercial and military-grade packages, including DIP, SOIC, and ceramic options.
Read onlineNational Semiconductor 74F158A specifications
| Supply Voltage (Military) | +4.5V to +5.5V |
|---|---|
| Supply Voltage (Commercial) | +4.5V to +5.5V |
| ESD Protection | 4000V minimum |
| Output Leakage Current | 50/33.3 µA |
| Output Short-Circuit Current | -60 to -150 mA |
Source: National Semiconductor 54F/74F158A Quad 2-Input Multiplexer Datasheet
All National Semiconductor 74F158A documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the function of the Enable input?
The Enable input is active LOW; when HIGH, all outputs are forced HIGH regardless of other inputs.
From: National Semiconductor 54F/74F158A Quad 2-Input Multiplexer Datasheet
What is the minimum ESD protection rating?
The device has a guaranteed minimum ESD protection of 4000V.
From: National Semiconductor 54F/74F158A Quad 2-Input Multiplexer Datasheet
What is the function of the Enable input?
The Enable input is active LOW; when HIGH, all outputs are forced HIGH regardless of other inputs.
How many data sources does the 74F158A select from?
It selects four bits of data from two sources.