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A 4 : 1 multiplexer uses A and B as its select lines (A is the more significant bit) to implement F(A, B, C) = Σm(1, 2, 6, 7). What are the…

2376Medium DSSSB TGT Computer Science 0 replies

A 4 : 1 multiplexer uses A and B as its select lines (A is the more significant bit) to implement F(A, B, C) = Σm(1, 2, 6, 7). What are the data inputs I0, I1, I2 and I3?

AC, C', 0, 1
BC', C, 1, 0
CC, C', 1, 0
D0, C, C', 1

Correct answer: A

Explanation

For AB = 00 only m1 is present, so F = C; for 01 only m2, so F = C'; for 10 neither m4 nor m5, so F = 0; for 11 both m6 and m7, so F = 1.

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