Demultiplexer

What is a Demultiplexer?

A demultiplexer (DEMUX) is a digital circuit that takes a single input signal and directs it to one of several output lines.

How Demultiplexers Work

• A demultiplexer has one input line and multiple output lines.
• The input signal is directed to one of the output lines based on the select lines.

Types of Demultiplexers

• 1-to-2 line demultiplexer
• 1-to-4 line demultiplexer
• 1-to-8 line demultiplexer
• 1-to-16 line demultiplexer

Applications

• Telecommunication systems
• Computer networks
• Data transmission and reception
• Digital signal processing

Demultiplexer Truth Table

S1	S0	Input	Output
0	0	1	O0=1, O1=O2=O3=0
0	1	1	O1=1, O0=O2=O3=0
1	0	1	O2=1, O0=O1=O3=0
1	1	1	O3=1, O0=O1=O2=0