The 54F�74F158A is a high speed quad 2-input multiplexer produced by National Semiconductor Corporation. It uses the common Select and Enable inputs to select four bits of data from two data sources. The four outputs will present the selected data in the inverted form. The device can also generate any four of the 16 different functions of two variables.
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.
| 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 |
The Enable input is active LOW; when HIGH, all outputs are forced HIGH regardless of other inputs.
The device has a guaranteed minimum ESD protection of 4000V.