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Consider the 2-bit multiplexer (MUX) shown in the figure. For OUTPUT to be the XOR of C and D, the values for 𝐴0, 𝐴1, 𝐴2, and 𝐴3 are ____________.


Consider the 2-bit multiplexer (MUX) shown in the figure. For OUTPUT to be the XOR of C and D, the values for 𝐴0, 𝐴1, 𝐴2, and 𝐴3 are ____________.


Answer: The Output will be 

CD + CD 

To select A0, C=0 & D=0 ; Output = 0 (=A0)
To select A1, C=0 & D=1 ; Output = 1 (=A1)
To select A2, C=1 & D=0 ; Output = 1 (=A2)
To select A3, C=1 & D=1 ; Output = 0 (=A3)

So, Correct Answer is Option (3)


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