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If you take a look at the truth table of XNOR (for example, check the Wikipedia article on XNOR), you'll see that the output is true (or 1) exactly when both inputs are the same.

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Related Questions

Which gate is called coincidence gate?

XNOR gate is called coincidence gate


What gate is called coincidence checker?

XNOR gate is a two input gate.And if two inputs are the same they are Known as the Coincidence gate.Electronics can be very interesting if you understand the fundamentals of it.


What is an XNOR gate?

An XNOR gate is a logic gate performing a Boolean logic XNOR operation, also known as an equivalence gate.


Why XOR gate and XNOR gate are not universial gate?

xor and xnor gates are derived from not gate


What is the ic number of xnor gate?

7404


Which logic gate is a basic comparator?

Either XOR or XNOR can be used, but the output will be inverted on the XNOR.


What is the boolean expression for xnor gate?

(a'b+b'a)'


A logic circuit which determines if one input is equal to another is called?

A XNOR gate for comparing 2 inputs


Why XOR and XNOR gate is not known as universal gates?

All other logic gates can be made using XOR and XNOR, but to get NOT, you need to do (input) XOR 1 or (input) XNOR 0, but with NAND, you don't need 1: (input) NAND (input).


What gate is known as coincidence detector?

AND


Truth table for 3 input xnor gate?

A, B and C are inputs, Q is output.A B C Q0 0 0 10 0 1 00 1 0 00 1 1 11 0 0 01 0 1 11 1 0 11 1 1 0*update*Although the Logism software shows the 3 input XNOR gate output 1 when all 3 are 1, perhaps there is a mistake, and 3 input of 1,1,1 in an XNOR gateoutputs 0. There is a good reason why. In an XOR gate, an even amount of 1 or 0 input will output a 0, and an odd input of 1 (ie: 1, 1, 1) will output a 1. The truth tablefor an XOR gate with 1, 1, 1 input is an output of 1. An XNOR gate will output the opposite of an XOR gate, thus XNOR input of1, 1, 1 should output 0.


What are applications of XNOR gate?

XNOR gate is used to detect even or odd 1s parity bit in circuits. It can also be used in Heat exchanger tank. When water level is in range it shows 0 output. when its level goes up or down,output shows 1 and alarm sounds.