Demultiplexer

Introduction

• A demultiplexer is also known as a “Demux” or “Data Distributor“. 

Definition

• A demultiplexer is a digital logic circuit that takes a single input and distributes it to one of several possible output lines based on the value of its control inputs.

Characteristic Features

• They are fundamental components in digital circuit design and are often used in combination with multiplexers for data routing and selection purposes.

Structure & Working Principle

• A demux is the reverse of a multiplexer, which takes multiple inputs and selects one of them to pass to a single output line.
• A typical demultiplexer has one input line, “n” control lines (to select one of 2ⁿ output lines), and multiple output lines.

Use/Applications

• Demultiplexers are essential building blocks in digital circuits and are commonly used in digital electronics for tasks like routing data to specific destinations, memory addressing, and data or signal distribution. 
• Demultiplexers are used in digital systems to distribute data or signals from a single source to multiple destinations based on a control signal (the binary input code).