How many AND gates are required for a 1-to-8 multiplexer?

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BPSC AE Paper 6 (Electrical) 25 Mar 2022 Official Paper
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  1. 2
  2. 6
  3. 5
  4. 8

Answer (Detailed Solution Below)

Option 4 : 8
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Multiplexer:

  • It is a combinational circuit that converts multiple inputs into a single output, depending upon the status of the selection lines.
  • For n selection lines, 2n inputs are available in a multiplexer.
  • Depending upon the status of the selection lines, one input is the selected output of 2n inputs and converted into the output.

Explanation:

  • For n selection lines, 2n AND gates are required in a multiplexer.
  • For the implementation of 1-to-8 multiplexer, 8 AND gates are required.

F5 Madhuri Engineering 26.05.2022 D14

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