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Difference between Multiplexer and Demultiplexer

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  • Difficulty Level : Basic
  • Last Updated : 10 May, 2020
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1. Multiplexer :
Multiplexer is a data selector which takes several inputs and gives a single output.In multiplexer we have 2n input lines and 1 output lines where n is the number of selection lines.

2. Demultiplexer :
Demultiplexer is a data distributor which takes a single input and gives several outputs.In demultiplexer we have 1 input and 2n output lines where n is the selection line.



Difference between of Multiplexer and Demultiplexer :

MultiplexerDemultiplexer
Multiplexer processes the digital information from various sources into a single source.Demultiplexer receives digital information from a single source and converts it into several sources
It is known as Data SelectorIt is known as Data Distributor
Multiplexer is a digital switchDemultiplexer is a digital circuit
It follows combinational logic typeIt also follows combinational logic type
It has n data inputIt has single data input
It has a single data outputIt has n data outputs
It works on many to one operational principleIt works on one to many operational principle
In time division Multiplexing, multiplexer is used at the transmitter endIn time division Multiplexing, demultiplexer is used at the receiver end

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