1Bit Adder, Sum

Sum = (a ? b ? Cin) + (a ? b ? Cin)

+ (a ? b ? Cin) + (a ? b ? Cin)

a b cin cout sum

0 0 0 0 0

0 0 1 0 1

0 1 0 0 1

0 1 1 1 0

1 0 0 0 1

1 0 1 1 0

1 1 0 1 0

1 1 1 1 1

Addition

a

b

Sum

Cout

Cin

Sum: OR(AND(a, NOT(b), NOT(Cin)), AND(NOT(a),

b, NOT(Cin)), AND(NOT(a), NOT(b), Cin),

AND(a,b,Cin))

Previous slide

Next slide

Back to first slide

View graphic version