 DESCRIPTION
The U74CBTLV3251 device is a 1-of-8 high-speed FET
multiplexer/demultiplexer. The low on-state resistance of the switch
allows connections to be made with minimal propagation delay.
The select inputs (S0, S1, S2) control the data flow. The FET
multiplexers/demultiplexers are disabled when the output-enable ( OE )
input is high.
This device is fully specified for partial-power-down applications
using IOFF. The IOFF feature ensures that damaging current will not
backflow through the device when it is powered down. The device has
isolation during power off.
To ensure the high-impedance state during power up or power
down, OE should be tied to VCC through a pull-up resistor; the
minimum value of the resistor is determined by the current-sinking
capability of the driver.

 FEATURES
* 5Ω Switch Connection Between Two Ports
* Rail-to-Rail Switching on Data I/O Ports
* IOFF Supports Partial-Power-Down Mode Operation