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Question 4.5.2: A 'code converter' is to be designed to convert from the BCD...

A ‘code converter’ is to be designed to convert from the BCD (5421) to the normal BCD (8421). The input BCD combinations for each digit are given below. A block diagram of the converter is shown in figure.

Decimal BCD (5421)
A B C D
0 0 0 0 0
1 0 0 0 1
2 0 0 1 0
3 0 0 1 1
4 0 1 0 0
5 1 0 0 0
6 1 0 0 1
7 1 0 1 0
8 1 0 1 1
9 1 1 0 0

(a) Draw K-maps for outputs W, X, Y and Z.

(b) Obtain minimized expression for the output W, X, Y and Z.

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