AiP74CBTLV3257 is a 4-Bit 1-of-2 FET Multiplexer/Demultiplexer. The circuit has a common selection port (S) and an enable control port (OE(—)).
To ensure the high-impedanceOFF-state during power upor power down, OE(—) should be tied to Vcc through apull-up resistor.
This device is fully specified for partial power-down applications using IOFF. The IOFF circuitry disables the output, preventing the damaging backflow current through the device when it is powered down.