Exclusive OR [XOR] Gate Truth Table, Internal Circuit Design, symbol
Exclusive OR [XOR] Gate
Exclusive OR (XOR) Gate is a Logical Gate which gives High Output signal when the no. of High input signal is odd. Basically, the XOR Gate has two input terminals and one output terminal. The more than two input terminals XOR Gate also available. Today we are going to discuss Truth Table, Internal circuit and Symbol of XOR Gate.
Symbol of Exclusive OR (XOR) Gate:
The Concept and Operation of Exclusive OR (XOR) Gate:
As I told before that the XOR gate gives a high output signal when the no. of the high input signal is odd. Let's understand. In a twoinput XOR Gate when only one input is high then the output will be high otherwise the output will be low.
If you see the truth table then you will understand easily the operation of the XOR Gate.
According to the truth table of the two input XOR gate,
1. When both inputs A and B are low then the output of the XOR Gate will be low.
2. When Input A is low and B is high then the output will be high.
3. When the input A is high and B is low then the output will be high.
4. When both inputs A and B is High then the output will be low.
Truth Table of Exclusive OR (XOR) Gate:
The inputs of the XOR Gate are represented by A, B, C. The output of the XOR Gate is represented by Q
Truth Table of TwoInput Exclusive OR (XOR) Gate:
A

B

Q

0

0

0

0

1

1

1

0

1

1

1

0

Boolean Expression of TwoInput Exclusive OR (XOR) Gate,
Truth Table ThreeInput Exclusive OR (XOR) Gate:
A

B

C

Q

0

0

0

0

0

0

1

1

0

1

0

1

0

1

1

0

1

0

0

1

1

0

1

0

1

1

0

0

1

1

1

1

Boolean Expression of ThreeInput Exclusive OR (XOR) Gate,
Circuit design of Exclusive OR (XOR) Gate:
The Exclusive OR (XOR) Gate can be designed using OR Gate, NAND Gate, and AND Gate. The circuit diagram is given below,
Exclusive OR (XOR) Gate using NAND Gates:
The circuit design of the XOR gate using NAND gates is given below,
Exclusive OR (XOR) Gate using NOR Gates:
The circuit design of the XOR gate using NOR gates is given below,
Example of XOR gate ICs:
TwoInput XOR Gate: IC 7486
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Exclusive OR [XOR] Gate Truth Table, Internal Circuit Design, symbol
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