Generally, multiplexers are circuits behaving like a controlled rotary switch, i.e. any one of a number of inputs may be selected as output. In digital electronics, a multiplexer is a combination of logic gates resulting into circuits with two or more inputs (data inputs) and one output. The selection of the channel to be read into the output is controlled by supplying a specific digital word to a different set of inputs (select inputs). [1]


  1. Prof. C. E. Efstathiou. "Digital Electronics: Gates, Decoders, Multiplexers." Accessdate 1/2/2016.


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