Draw a block diagram, truth table and logic circuit of 1*16 Demultiplexer and explain its working principle.

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Suresh Chand · Accepted Answer

1 to 16 demultiplexer has one output data, four select lines A, B, C and D and 16 output lines Y0 to Y15. This is implemented using AND and NOT gate. 1 to 16 demultiplexer can be implemented using 1 to 8 demultiplexer, 1 to 4 demultiplexer and 1 to 2 demultiplexer. Truth Table The below truth table shows the operation of 1 to 16 demultiplexer: Inputs Outputs A S0 S1 S2 S3 Y0 Y1 Y2 Y3 Y4 Y5 Y6 Y7 Y8 Y9 Y10 Y11 Y12 Y13 Y14 Y15 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 1 1 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1 0 0 1 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 1 1 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 1 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 x x x x 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 x x x x 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 x x x x 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 The logical expression of the term Y is as follows: Y0=A.S0'.S1'.S2'.S3' Y1=A.S0'.S1'.S2'.S3 Y2=A.S0'.S1'.S2.S3' Y3=A.S0'.S1'.S2.S3 Y4=A.S0'.S1.S2'.S3' Y5=A.S0'.S1.S2'.S3 Y6=A.S0'.S1.S2.S3' Y7=A.S0'.S1.S2.S3 Y8=A.S0.S1'.S2'.S3' Y9=A.S0.S1'.S2'.S3 Y10=A.S0.S1'.S2.S3' Y11=A.S0.S1'.S2.S3 Y12=A.S0.S1.S2'.S3' Y13=A.S0.S1.S2'.S3 Y14=A.S0.S1.S2.S3' Y15=A.S0.S1.S2'.S3 Logical circuit of the above expressions is given below:

Draw a block diagram, truth table and logic circuit of 1*16 Demultiplexer and explain its working principle.

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Draw a block diagram, truth table and logic circuit of 1*16 Demultiplexer and explain its working principle.

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