# multiplexer and demultiplexer definition

## multiplexer and demultiplexer definition

multiplexer and demultiplexer definition. The definition of multiplexer and demultiplexer is simply an apparatus used to choose a particular input and then channeled to a particular output through a single channel

The multiplexer and demultiplexer circuit of how it works is similar to the rotary switch

To better multiplexer and demultiplexer definition definition is the picture below

the workings of multiplexers and demultiplexers are similar to rotary switches

## How multiplexer and demultiplexer work

In the picture above, there are 5 pieces of input to be conveyed on a single channel

The multiplexer circuit (MUX) Is analogous to the left-hand rotary switch where we can pick out the inputs A, B, C, D, E and the demultiplexed circuit is analogous to the right rotary switch and enabled to choose which output channel to use ( A, B, C, D, E)

With multiplexer and demultiplexer we can send data bit 1 or 0 of an input and forward to the output we desire

By using multiplexer and demultiplexer then an input can be transmitted only by using a single channel. This is a substantial savings compared to using a manual that requires 5 channels

## Create multiplexer and demultiplexer using logic gates

We can create a multiplexer and demultiplexer circuit using a combination of logic gates

By using the gate and, or gate, and, gate notes we can construct a simple multiplexer and demultiplexer

The accompanying example shows a multiplexer circuit and a demultiplexer circuit with 4 input, output channels built using logic gates

In the photo above a selector is actually a decoder 2 to 4. this role is to choose which input and output to be channeled through a single path. the picture above input and output that can be selected are A, B, C, and D

To add a channel can be exercised by adding decoder to decoder 3 to 8 and will have 8 channels