XOR gate symbol
Also called Exclusive OR, XOR, EOR
The output is 1 when the inputs differ.
ANSI / IEEE
IEC 60617What the XOR gate symbol means
The output is 1 when the inputs differ.
ANSI and IEC symbols
Where you see it
Digital electronics, PLC function block diagrams, interlock and safety logic, and cause and effect logic.
Related symbols
Frequently asked questions
What does the XOR gate symbol look like?
On ANSI drawings: An OR body with an extra curved line at the inputs. In IEC 60617: A rectangle marked =1.
Is the XOR gate symbol the same in IEC and ANSI?
No. A rectangle marked =1.
Where is a XOR gate used?
Digital electronics, PLC function block diagrams, interlock and safety logic, and cause and effect logic.
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