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Code Converters and Multiplexers

Q1: How many select lines would be required for an 8-line-to-1-line multiplexer?

A 2

B 3

C 4

D 8

ANS:B - 3

2^n input lines, n control lines and 1 output line available for mux.

Here 8 input line means 2^3 inputs.

So 3 control lines possible.



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