TXU0204 is a four-channel unidirectional level shifter

The TXU0204 is a 4-bit, AD7890BR-4 dual-supply, non-inverting, fixed-direction voltage level translation device. The Ax pin is referenced to the V CCA logic level, the OE pin can be referenced to the V CCA or V CCB logic level, and the Bx pin is referenced to the V CCB logic level. Port A can accept an input voltage of 1.1V~5.5V, and port B can also accept an input voltage of 1.1V~5.5V. When OE is in fixed direction, data transfers can be from A to B or B to A with reference to either supply set high. When OE is set low, all output pins are in a high-impedance state. For a summary of the operation of the control logic, see Device Functional Mode.


Fully configurable dual rail design allows each port to operate from 1.1 V to 5.5 V

●Up to 200 Mbps supports 3.3 V to 5.0 V

● Schmitt trigger input allows slow and noisy input

Inputs with integrated static pull-down resistors prevent channels from floating

High drive strength (up to 12 mA at 5 V)

●Low power consumption

—2.5μA max (25°C)

—6 μA max (–40°C to 125°C)

●V CC isolation and V CC disconnection (I off-float) function

—If V CC input <100 mV or disconnected, all outputs are disabled and become high impedance

●I off supports partial power-down mode operation

Control logic (OE) with V CC(MIN) circuit allows control from A or B port

●Pinout compatible with TXB series level shifters

● Additional variants available to support common applications: TXU0204 , TXU0304

●Operating temperature from –40°C to +125°C

Latch-up performance exceeds 100 mA per JESD 78, Class II

ESD protection exceeds JESD 22

—2500-V mannequin

—1500V charging device model


Technology Family: TXU

Applications: GPIO, UART, JTAG

Bits (#): 4

Vout (Min) (V): 1.1

Output Voltage (Max) (V): 5.5

IOH (max) (mA: -12

IOL (max) (mA): 12