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, ...

XOR/OR/NAND operations of the reconfigurable nanotrack by turning the switch (a) to idle, (b) to 1 and (c) to 2, respectively. XNOR/NOR/AND functions can be converted from the above logic gates by ...