TXU0102QDCURQ1

Overview

The TXU0102QDCURQ1 is an automotive-grade, dual-supply, non-inverting fixed-direction voltage-level translator featuring Schmitt-trigger inputs and three-state outputs. It supports data transmission between ports operating within a 1.1 V to 5.5 V range. The device provides high drive strength up to 12 mA at 5 V and low power consumption with maximum supply currents of 2.5 µA at 25°C and 6 µA across the extended temperature range. It includes VCC isolation and Ioff-float features for partial-power-down support.

Feature Summary

• Schmitt-trigger inputs enable reliable translation of slow or noisy signals
• Integrated static pull-down resistors prevent channel floating when undefined
• VCC isolation and disconnect feature disables outputs if either supply drops below 100 mV
• OE control logic allows output enable/disable referencing either VCCA or VCCB

Applications

• Eliminating slow or noisy input signals in digital interfaces
• Driving indicator LEDs or buzzers from low-voltage logic
• Debouncing mechanical switches before microcontroller processing
• General-purpose I/O level shifting between disparate voltage domains
• Push-pull level shifting for UART, SPI, and JTAG protocols

Procurement Notes

Verify that the ordering suffix DCUR corresponds to the VSSOP-8 package as specified in the datasheet. Confirm AEC-Q100 qualification status for automotive deployment requirements. Ensure design accounts for the specific thermal resistance values associated with the DCU package variant during layout planning.

Selection Notes

Select this component when fixed-direction translation between two independent voltage rails is required. The integrated Schmitt triggers are suitable for environments with signal integrity challenges. Verify that the OE pin configuration aligns with system power sequencing needs to ensure proper high-impedance states during startup.

Part Context

This part belongs to the TXU0102-Q1 family of automotive voltage translators. It shares functional similarities with the TXB series but offers distinct Schmitt-trigger capabilities. The Q1 suffix indicates compliance with automotive reliability standards, differentiating it from commercial variants like the standard TXU0102.

Replacement Considerations

The TXB0102 is noted as pinout compatible. Verify electrical characteristics such as drive strength and input threshold hysteresis differ significantly between these families before substitution.