The 74LVC1G123DP,125 is a single retriggerable Monostable Multivibrator with Schmitt trigger inputs and can be driven from either 3.3 or 5V devices. This feature allows the use of this device as translators in a mixed 3.3 and 5V environment. Schmitt-trigger inputs makes the circuit highly tolerant to slower input rise and fall times.
High noise immunity
CMOS low power consumption
DC triggered from active high or active low inputs
Retriggerable for very long pulses up to 100% duty factor