Q- Implement the Full adder using 3 to 8 decoder. Ans: equation for sum S = ab’c’ + a’b’c + a’bc’ + abc = Σ(1,2,4,7) C = ab + ac + bc = ab(c + c’) + ac (b + b’) + bc (a + a’) = abc + abc’ + abc + ab’c + […]
Tag: full adder
Implement Full Adder using Half adders
Q- Can be implement the full adder from 2 half adders? Ans: Yes we can implement the Full Adder using 2 half adders and one OR gate as follow: And the circuit diagram is as:
FULL ADDER(FA)
The full adder has 3 inputs and 2 ouputs. The first 2 inputs are the 2 bits a & b to add while the 3rd input c is the carry from the previous significant bit while the outputs are the same: sum S and the carry C. The following table shows the result of different […]