EX NOR Gate || Lesson 39 || Digital Electronics || Learning Monkey ||

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Electronics

The use of EX NOR Gate is very important to understand.
The EX NOR gate is also called NOT an EX-OR Gate.

The link for EX-OR Gate: https://youtu.be/svt7jUb_Q88

The understanding of EX-OR will help a lot in understanding EX NOR Gate.

EX NOR Gate is a 2 input and 1 output gate which produces an output of 1 when both the inputs are either 1 or 0.

The symbol for EX NOR gate dot encircled.
The EX NOR Gate is also called an equality detector.
The output of EX NOR Gate is 1 if both the inputs are equal.

A 2- input EX NOR gate is going to produce an output of 1 only when the inputs are 1-1 or 0-0.
In the remaining cases, it produces zero.

There will not be 3-input and 4-input ex nor gates.
To produce 3-input and 4-input ex nor gates a number of ex nor gates are to be combined.

The very important point that we need to understand is EX NOR gate produces an output of 1 when the number 0’s in the input are even in number.
If we take a 3 input ex nor gate it will produce an output of 1 only when the number of zeros is even in number.

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