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. Decoder :
Decoder is a logic circuit which n input lines into m output lines.Decoders are called as min-term and max-term generators because for each of the input combinations, exactly one output is true.
Difference between of Multiplexer and Decoder :
|1.||MUX accepts several inputs and allow only one data output.||It takes n input binary code and convert it into a corresponding outputs.|
|2.||Select line are used to select data inputs and allow only one of them.||Enable inputs are used to control the operation of the decoder.|
|3.||It can be used in data routing and waveform generation.||Application of decoder is in Decimal to BCD encoder.|
|4.||Multiplexer converts the unary code into binary code||Decoder converts binary code into unary..|
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