only when the number of true inputs is even. Essentially, they are the complement of XOR gates. The XNOR gate combines the functionality of an XOR gate followed by a NOT gate, making it a fundamental ...

Texas Instruments’ 5400 and 7400 TTL quad 2-input NAND gate has been in continuous production since 1964 and is the progenitor of what is probably the most numerous breed of integrated circuits, ...