Design a circuit to detect when 3 and only 3 bits are set
out of 8 bits.(eg. o0101100)

Answer Posted / aiyush

The first guy's got it write, every other answer is more
complicated than needed. Also, we cannot use a 3-input AND
like the second guy said b/c we are given 8 bits, not 3. A
3-bit adder and a comparator is all you need.

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