TXU0104RUTR

Overview

The TXU0104RUTR is a four-channel fixed-direction voltage-level translator manufactured by Texas Instruments. It operates with dual power supplies ranging from 1.1 V to 5.5 V on both ports, supporting data rates up to 200 Mb/s for 3.3 V to 5.0 V interfaces. The device features Schmitt-trigger inputs and three-state outputs in a 12-pin UQFN package. It includes Ioff circuitry for partial-power-down support and integrated static pull-down resistors to prevent floating channels.

Feature Summary

• Fixed-direction translation architecture with configurable dual-rail design
• Schmitt-trigger inputs designed to eliminate slow or noisy signal transitions
• Integrated Ioff circuitry disables outputs during power-down to prevent backflow current
• Static pull-down resistors on inputs prevent channel floating when disconnected

Applications

• Eliminating slow or noisy input signals in digital interfaces
• Driving indicator LEDs or buzzers with high drive strength
• Bidirectional level shifting between low-voltage logic domains and 5V systems

Procurement Notes

Verify the specific suffix RUTR corresponds to the UQFN-12 tape-and-reel packaging configuration. Confirm that the fixed-direction requirement aligns with system design, as this part lacks auto-direction sensing found in other series members. Ensure supply voltages remain within the 1.1 V to 5.5 V range for both ports to maintain specified performance characteristics.

Selection Notes

Select this component when fixed-direction translation is sufficient and Schmitt-trigger noise immunity is required. It serves as a pinout-compatible alternative to the TXB family but lacks bidirectional capability. Consider the 200 Mb/s speed limit and 12 mA drive strength for interface requirements. Verify compatibility with existing control logic (OE) configurations before integration.

Part Context

This device belongs to the TXU0104 family of fixed-direction voltage translators. It shares pinout compatibility with the TXB family but differs in functionality by lacking auto-direction sensing. The RUTR suffix denotes the specific surface-mount UQFN-12 package variant. It is distinct from the TXB0104RUTR, which offers bidirectional translation instead of fixed direction.

Replacement Considerations

• TXB0104RUTR: Requires modification for bidirectional operation if auto-sensing is needed
• TXUN0104: Offers active-low OE control instead of active-high
• LSF0204RUTR: Provides higher speed and wider temperature range but different electrical characteristics