Tuesday, August 26, 2014

Multiplexer with Interview questions

Multiplexer:

Multiplexer is also known as Data Selector  or Mux or mux.
Mux represents minterms of input to output  ratio 2^n:1. Here  2^n is inputs  and n is select lines.

Ex:  1. 2:1 Mux =>  Ratio= 2^1:1 , Select lines =1 , Inputs=2, output=1
       2. 4:1 Mux =>  Ratio= 2^2:1 , Select lines =2, Inputs=4,output=1
       3. 8:1 Mux =>  Ratio= 2^3:1 , Select lines =3, Inputs=8,output=1
       4. 16:1 Mux =>  Ratio= 2^4:1 , Select lines=4, Inputs=16,output=1

Mux symbol: for 2:1 Mux :

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