Logic gates required to built up a half adder circuit are :
2025
Logic gates required to built up a half adder circuit are :
- A.
EX-OR gate and NOR gate
- B.
EX-OR gate and AND gate
- C.
EX-OR gate and OR gate
- D.
EX-NOR gate and NAND gate
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Correct answer: B
A half adder circuit adds two single-bit binary numbers. I
A Half Adder circuit is built using one XOR gate and one AND gate.
The XOR gate gives the Sum output.
The AND gate gives the Carry output.
The Boolean expressions are:
S = A ⊕ B
C = A · B
Truth Table:
A | B | Sum (S) | Carry (C) |
|---|---|---|---|
0 | 0 | 0 | 0 |
0 | 1 | 1 | 0 |
1 | 0 | 1 | 0 |
1 | 1 | 0 | 1 |
Therefore, the logic gates required to build a Half Adder are XOR gate and AND gate.
