The 74LVC2G66DC,125 is a single-pole single-throw (SPST) bilateral Analog Switch has two input/output terminals (nY and nZ) and an active HIGH enable input (nE). When nE is LOW, the analog switch is turned off. Schmitt trigger action at the enable inputs makes the circuit tolerant of slower input rise and fall times across the entire VCC range from 1.65 to 5.5V.