TXU0202DTMR

Overview

The TXU0202DTMR is a dual-bit, noninverting fixed-direction voltage-level translator manufactured by Texas Instruments. It operates with independent VCCA and VCCB supplies ranging from 1.08 V to 5.5 V. The device supports data rates up to 200 Mbps at 3.3 V to 5.0 V levels. It features Schmitt-trigger inputs for noise immunity and integrated static pull-down resistors. The package is an 8-pin X2SON measuring 1.35 mm by 0.80 mm. Operating temperature ranges from -40°C to +125°C.

Feature Summary

• Schmitt-trigger inputs filter slow or noisy signals
• Integrated static pull-downs prevent floating channels
• VCC isolation disables outputs if supply drops below 100 mV
• OE control logic references either VCCA or VCCB

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

Procurement Notes

Verify the DTMR suffix corresponds to the 8-pin X2SON package (1.35 mm x 0.80 mm) in the official datasheet orderable addendum. Confirm that the specific revision matches production data status. Ensure ESD handling protocols are followed due to the sensitivity of the CMOS structure.

Selection Notes

Select this component when fixed-direction translation between two distinct voltage domains is required. The dual-supply design allows flexible configuration of A and B ports. Verify that the target application does not require bidirectional signal flow, as this device is unidirectional only.

Part Context

This part belongs to the TXU0x02 family of 2-bit unidirectional voltage-level translators. It shares pinout compatibility with the TXB family, allowing for drop-in replacement in existing designs. The device provides higher drive strength compared to standard shifters, supporting loads up to 12 mA at 5 V.

Replacement Considerations

TXB0102 is a pin-compatible alternative within the same family.