SN74LV4T00/SN74LV4T00-Q1 Quadruple NAND Gates Texas Instruments SN74LV4T00/SN74LV4T00-Q1 Quadruple NAND Gates contain four independent 2-input NAND Gates with Schmitt-trigger inputs. Each gate performs the Boolean function Y = A ● B in positive logic. The output level is referenced to the supply voltage (VCC) and supports 1.8V, 2.5V, 3.3V, and 5V CMOS levels.