Draw truth table of full sub tractor and realize it using 3:8 decoder.

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written 5.5 years ago by

teamques10 ★ 69k

modified 2.9 years ago by

sagarkolekar ★ 11k

digital logic design

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1 Answer

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written 2.9 years ago by

sagarkolekar ★ 11k

Solution:

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Deci	A	B	Cin	Diffr	Borrw
0	0	0	0	0	0
1	0	0	1	1	1
2	0	1	0	1	1
3	0	1	1	0	1
4	1	0	0	1	0
5	1	0	1	0	0
6	1	1	0	0	0
7	1	1	1	1	1

Diff = f(A, B, Cin) = $\sum$ m (1,2,4,7)

Borrow = f (A, B, Cin) = $\sum$m (1,2,3,7)

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