The 54LS157FMQB is a single multiplexer from the 54LS series, a logic family designed for military-temperature-range applications. It selects one of several data inputs and routes it to a single output, a common function in bus-oriented systems, address decoding, or signal routing on a board that needs to share a line among multiple sources. The LS (Low-Power Schottky) process gives it a speed-power tradeoff that sits between the older 54S and the later 54HC families — faster than standard TTL, lower power than Schottky.
54LS157FMQB Multiplexer, LS Series, Active, Bulk Package
MPN54LS157FMQB
End of Life
54LS157FMQB, LS Series, Multiplexer, Bulk package, Active lifecycle.
$1.46Ref. price · indicative, final on quote
RoHSNot applicable
Series*
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026
Specifications
| Parameter | Value |
|---|---|
| Series | * |
| Package | Bulk |
Product details
Frequently asked questions
What is the 54LS157FMQB used for?
It is a multiplexer from the 54LS series, used to select one of several digital inputs and route it to a single output. Typical applications include bus switching, address decoding, and signal routing in military-temperature-range logic systems.