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Multiplexers and Decoders





carlospro7
here is a simple question:
can anyone explain to me in detail and in a "dumbed" down way what a multiplexer is, what its purpose is, how it works, and then give some examples of when is used? Then if you have the time, maybe also explain the same for a decoder? Thank you in advanced. Very Happy
carlospro7
Does anyone know, electrical engineers? anyone?
Jermore
"mux" is a device that selects between a number of input signals. In its simplest form, a multiplexer will have two signal inputs, one control input, and one output.

An everyday example of an analog multiplexer is the source selection control on a home stereo unit.

Basically you have several inputs and several outputs on a chip and you have a few select lines which determine which inputs go to which outputs. You can use them for any number of things I have used them for simple controls.

A mux will have more output lines than input. A decoder is sort of just the opposite of that.

That's probably confusing...so you might want to look at this http://en.wikipedia.org/wiki/Multiplexers
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