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UM74AVC8TX245QA
具有可配置電壓轉換和三態輸出的8位雙電源總線收發器

Datasheet

Reliability Report

Package Information

	Outline-QFN24 2.0×4.0.pdf
	Land Pattern-QFN24 2.0×4.0.pdf

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Key Specifications

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?
UM74AVC8TX245QA	具有可配置電壓轉換和三態輸出的8位雙電源總線收發器	Preview	1.0	3.6	1.0	3.6	400	8	-40 to 125	24/QFN 2.0×4.0

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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 V_CCA 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 V_CC isolation feature is designed so that if either V_CC 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 V_CC through a pull-up resistor; the current-sinking capability of the driver determines the minimum value of the resistor.

The UM74AVC8TX245QA is available in QFN24 2.0×4.0 package.

Features

- Control inputs V_IH/V_IL levels are referenced to V_CCA voltage
- Multiple direction-control pins to allow simultaneous up and down translation
- Fully configurable dual-rail design allows each port to operate over the full 1V to 3.6V power supply range
- I_off supports partial power-down mode operation
- Backward compatibility with UM74AVC8T245 device
- Latch-up performance exceeds 800 mA per JESD 78, Class II
- ESD protection exceeds JESD22
±8kV Human body model (A114-A)
±2kV Charged-device model
- Up to 400Mbps support when translating from 1.8V to 3.3V

Applications

- Enterprise and communications
- Industrial
- Personal Electronic
- Wireless infrastructure

- Building automation
- Point of sale

Pin Configurations

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Ordering Information