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Question 25.SG.Q.3: The circuit shown in the following figure converts (a) BCD t......

The circuit shown in the following figure converts

(a) BCD to binary code

(b) Binary to excess —3 code

(c) Excess —3 to Gray code

(d) Gray to Binary code

1079457-25.3
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The logic circuit is redrawn as shown in the following figure:

Now,

w = a
x = a ⊕ b
y = c ⊕   (a +b )
z = d ⊕ y  (a + b + c )

These are Boolean functions for converting Gray code number to Binary code number.

Ans. (d)

1079457-25.4

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