EXOR, EXNOR Gates

  • EXOR gate
    The ’Exclusive-OR’ gate is a circuit which will give a high output if either, but not both, of its two inputs are high. An encircled plus sign is used to show the EOR operation.

  • EXNOR gate
    The ’Exclusive-NOR’ gate circuit does the opposite to the EOR gate. It will give a low output if either, but not both, of its two inputs are high. The symbol is an EXOR gate with a small circle on the output. The small circle represents inversion.

Solved Examples

Solved Example:

9980-01

Four statements are given below. Identify the correct statement. (SSC JE EE Sep 2019 Evening session)

Solution:

  • AND, OR, NOT = basic gates.
  • NAND, NOR, XOR, and XNOR = derived gates.
  • NAND and NOR = universal gates.

Correct Answer: C