A digital multiplexer (MUX) is a combinational circuit that accepts several data inputs and allows only one of them at a time get through to the output.
The selection of a particular input line to the output is controlled by a set of selection lines.
The multiplexer (MUX) is also called as “data selector or many-to-one circuit”.
Multiplexers can be used to convert parallel data into serial data, for logic circuit implementation and waveform generation.
There are 2n input lines, n selection lines whose bit combinations determine which input is selected and a single output line.
DEMULTIPLEXERS
Demultiplexer is a combinational circuit, which performs the reverse operation to the multiplexer.
It takes a single input and assigns it to a particular output among several outputs depending on the bits combination present at the select lines.
It is also called as “data distributor or one-to-many circuit”.
It can be used to convert serial data into parallel data.
It has one input line, n selection line and 2n output lines.
The select inputs determine to which output the data input will be connected.
