XNOR Gate
It is termed as “Exclusively NOR gate”. XNOR gate is basically a XOR gate added with a NOT gate. It is just the opposite or inverse of the XOR gate. In this gate the output is true (HIGH/1) if both the input values are same (i.e. both 0 or both 1). Other cases the output will be false (LOW/0).
Why is it called Exclusively NOR Gate?
It is called so because it is similar to the XOR gate but just the inverse of it. The NOT gate is added next to the XOR gate to make it “exclusively NOR or XNOR” gate.
Logic Gate Of XNOR
Logic Gate Of XNOR
Truth table of XNOR Gate
Truth table of XNOR Gate
Circuit of XNOR Gate
The Boolean expression for XNOR gate is: AB + A’B’ or A ⊙ B
The XNOR gate can be represented by a Combination of two Not gates, two And gates and one Or gate as shown below:
Circuit of XNOR Gate
Applications Of XNOR
- Used to check the parity of binary numbers and hence prevents any kind of error.
- Used for performing arithmetic operations.
- Also checks equality between two binary numbers.
What is the Difference Between XOR and XNOR Gate?
In electronics, Logic Gates are termed as “building blocks of digital circuits”. These gates are used to perform logical operations on single or multiple binary values. In the term “Logic Gate”, a Gate represents a circuit that controls the incoming electric signals. Hence, Logic Gates are those digital circuits through which electric signals can pass only when a given logical condition is true.
Although the logic gates take single or multiple binary input, it returns only a single value as output. There are several logic gates like: AND, OR, NOT, NAND, NOR, XOR, and XNOR. In this article, we will be focusing on the difference between XOR and XNOR Gate.
NOTE: Before studying logic gates one should know that in digital theory 1 indicates True (On state) and 0 indicates False (Off state).
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