Part Number	Description	Status	VCCA(Min)(V)	VCCA(Max)(V)	VCCB(Min)(V)	VCCB(Max)(V)	Max Data Rate(Mbps)	No. of Bits	Operating Temperature Range(℃)	Pin/Package	EV Kit Available?
UM74AVC8TX245UO	8-Bit Dual-Supply Bus Transceiver With Configurable Voltage Translation and 3-State Outputs	Preview	1.0	3.6	1.0	3.6	400	8	-40 to 125	24/TSSOP

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Product Description

 

The UM74AVC8TX245 is designed for asynchronous communication between two data buses. The device transmits data from the A bus to the B bus or from the B bus to the A bus, depending on the logic level of the direction-control inputs (DIR1 and DIR2). The output-enable (/OE) input can be used to disable the outputs so the buses are effectively isolated.

The UM74AVC8TX245 is designed so that the control pins (DIR and /OE) are referenced to VCCA voltage.

This device is fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs, thus preventing damaging current backflow through the device when it is powered down.

The VCC isolation feature is designed so that if either VCC input supply is below 100mV, all level shifter outputs are disabled and placed into a high impedance state.

To put the device into the high-impedance state during power up or power down, tie /OE to VCC through a pull-up resistor; the current-sinking capability of the driver determines the minimum value of the resistor.

The UM74AVC8TX245UO is available in TSSOP24 package.

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