XNOR gate
The XNOR gate is a logic gate that outputs 1 (true) when both of its inputs are equal. If only one output is high(1) the output is low (0). It is opposite of XOR GATE.
| INPUT | OUTPUT | |
| A | B | A XNOR B |
| 0 | 0 | 1 |
| 0 | 1 | 0 |
| 1 | 0 | 0 |
| 1 | 1 | 1 |
Symbols
There are three symbols for the XNOR gate:
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| MIL/ANSI Symbol | IEC Symbol | DIN Symbol |
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