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GATE | GATE 2017 MOCK II | Question 45

  • Last Updated : 28 Jun, 2021

Identify the circuit shown below:

digital
(A) Bidirectional Buffer
(B) De-multiplexer
(C) Multiplexer
(D) Encoder


Answer: (C)

Explanation: In the circuit shown there are two tristate buffers. One with active low enable and second one with active high enable. As per the operation of these buffers truth table is given below.

It is equivalent to 2 x 1 MUX
B is selection line, A & C are the input lines, ā€˜Dā€™ is the output.

table

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