Demux Circuit Diagram. The common selection lines s1 s0 are applied to both 1x4 de multiplexers. An simple example of an non electronic circuit of a multiplexer is a single pole multiposition switch.
Details circuits diagrams schematic designs truth tables and application of different kind of muxes are as follow. The other selection line s2 is applied to 1x2 de multiplexer. It also has an enable input.
When the control signal is 0 the first output channel is selected.
The below figure shows the block diagram of a 1 to 8 demultiplexer that consists of single input d three select inputs s2 s1 and s0 and eight outputs from y0 to y7. However circuits that operate at. The multiplexer and demultiplexer are also combinational circuits similar to encoder and decoder. The outputs of upper 1x4 de multiplexer are y 7 to y 4 and the outputs of lower 1x4 de multiplexer are y 3 to y 0.
