AdvancedA-002-010-005
What is an EXCLUSIVE OR gate?
B
Answer
Circuit design and power supplies
Type
A
A circuit that produces a logic "0" at its output when only one of the inputs is logic "1"
B
A circuit that produces a logic "1" at its output when only one of the inputs is logic "1"
C
A circuit that produces a logic "1" at its output when all of the inputs are logic "1"
D
A circuit that produces a logic "1" at its output when all of the inputs are logic "0"
Answer Notes
An EXCLUSIVE OR (XOR) gate behaves slightly differently from a standard OR gate. It outputs a logic "1" (TRUE) only when its inputs are different from each other. For a two-input gate, this means only one input can be logic "1" for the output to be "1".
If both inputs are the same (both "0" or both "1"), the XOR gate outputs a logic "0". The word "exclusive" means it excludes the condition where both inputs are high.
This is a very useful gate in digital arithmetic and parity checking circuits. Distractors typically describe standard OR gates (which allow all inputs to be "1") or AND gates.
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What is an EXCLUSIVE NOR gate?