A digital switch that takes a single data input and distributes it to multiple outputs based on the value of a set of select lines. If a demultiplexer has three select lines, it can route the input to one of eight distinct outputs. They are heavily used in address decoding and routing serial data to parallel destinations.
Heard on the job
Tie the enable pin on the demultiplexer high so we can route the clock to the active memory bank.
Also heard as
- demux
Related terms
Demultiplex
To separate a single combined data stream back into its original multiple signals.
Multiplexer
A digital switch that routes one of several input signals to a single output line based on control signals.
Logic level
A specific voltage range that represents a distinct binary state in a digital circuit.