TXUN0104RUTR

Overview

The TXUN0104RUTR is a four-channel fixed-direction voltage-level translator from Texas Instruments, housed in a UQFN-12 package. It supports configurable dual-rail operation with supply voltages ranging from 1.1 V to 5.5 V on both ports. The device features Schmitt-trigger inputs for noise immunity and provides 3-state outputs. Key electrical parameters include a maximum data rate of 200 Mbps, propagation delay of 96 ns, and low power consumption with a maximum quiescent current of 6 µA across the operating temperature range of -40°C to +125°C.

Feature Summary

• Fixed direction translation with Schmitt-trigger inputs to handle slow or noisy signals
• Configurable dual-rail design supporting universal voltage node translation
• Integrated Ioff circuitry enables partial-power-down mode without backflow
• High drive strength capability for direct driving of indicators or buzzers

Applications

• Eliminating slow or noisy input signals in digital interfaces
• Driving indicator LEDs or buzzers directly from logic outputs
• Bidirectional level shifting between mixed-voltage domains (e.g., 1.2V to 5V)
• Partial-power-down systems requiring output isolation when powered off

Procurement Notes

Verify the specific suffix 'RUTR' corresponds to the UQFN-12 package and reel packaging configuration. Confirm the active-low OE control logic characteristic, as this distinguishes the TXUN variant from the standard TXU family. Ensure compatibility with the target PCB footprint and thermal requirements for the specified operating temperature range.

Selection Notes

Select this component when fixed-direction translation is sufficient and Schmitt-trigger input conditioning is required for signal integrity. The TXUN0104 is suitable for applications needing high drive strength and low standby current. Compare against the TXB0104 if automatic direction sensing is preferred over fixed direction, or against the TXS0104 if lower speed but higher ESD robustness is prioritized.

Part Context

This part belongs to the TXU/TXUN series of voltage-level translators designed for flexible interface solutions. Unlike bidirectional variants, the TXUN series offers fixed directionality controlled by an active-low output-enable pin. It shares pinout compatibility with the TXB family, facilitating design upgrades where automatic direction sensing is not needed.

Replacement Considerations

The TXU0104RUTR is a pin-compatible alternative with active-high OE logic. For automatic direction sensing, consider the TXB0104RUTR. If automotive qualification is required, verify availability of Q1-rated equivalents such as the TXUN0104QPWRQ1.