TXU0102DTMR

Overview

The TXU0102DTMR is a dual-supply, noninverting fixed-direction voltage-level translator with Schmitt-trigger inputs and three-state outputs. It supports bidirectional data transmission between ports A and B when the OE pin is high. The device accommodates input voltages from 1.1 V to 5.5 V on both ports. It features integrated static pull-down resistors to prevent channel floating and offers high drive strength up to 12 mA at 5 V. The component operates within a temperature range of -40°C to +125°C.

Feature Summary

• Schmitt-trigger inputs handle slow or noisy signals effectively
• Integrated static pull-down resistors prevent channels from floating
• High drive strength supports driving indicators or buzzers
• VCC isolation and disconnect feature enables partial-power-down mode

Applications

• Eliminating slow or noisy input signals
• Driving indicator LEDs or buzzers
• Debouncing mechanical switches
• General purpose I/O level shifting
• Push-pull level shifting for UART, SPI, and JTAG interfaces

Procurement Notes

Verify the package designation DTMR corresponds to the X2SON (8-pin) form factor as specified in the official datasheet. Confirm that the ordering suffix matches the required reel or cut tape configuration. Ensure the procurement source provides valid traceability documentation consistent with Texas Instruments production standards.

Selection Notes

Select this component for applications requiring fixed-direction translation between dissimilar logic families. The dual-supply design allows independent voltage domains on each port. Verify that the required drive current does not exceed the 12 mA limit at 5 V. Consider the X2SON package dimensions if board space is constrained compared to standard SON or VSSOP options.

Part Context

This device belongs to the TXU0x02 family of unidirectional voltage-level translators. It shares pinout compatibility with the TXB0102, allowing for drop-in replacement in designs where higher drive strength is needed. The TXU0102 specifically supports fixed-direction data flow controlled by the OE pin, distinguishing it from bidirectional shifters like the TXS series.

Replacement Considerations

The TXB0102 is a pin-compatible alternative but lacks the high drive strength of the TXU0102. Designers should verify that the lower drive capability of the TXB0102 meets the load requirements before substituting.