ISRO | ISRO CS 2020 | Question 9
Following Multiplexer circuit is equivalent to
(A) Sum equation of full adder
(B) Carry equation of full adder
(C) Borrow equation for full subtractor
(D) Difference equation of a full subtractor
Answer: (A) (D)
Explanation: According to given Multiplexer,
Y = A′B′C+A′BC′+AB′C′+ABC Y = A⊕B⊕C Y = Σm(1, 2, 4, 7)
Which is equivalent to sum equation of full adder and also difference equation of a full subtractor.
Both option (A) and (D) are correct.
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