TXU0202QDTTRQ1

Overview

The TXU0202QDTTRQ1 is an automotive-grade, dual-supply, fixed-direction voltage-level translator featuring Schmitt-trigger inputs and three-state outputs. It supports data rates up to 200 Mbps when operating between 3.3 V and 5.0 V supplies. The device accommodates independent A and B port supply voltages ranging from 1.1 V to 5.5 V. It includes integrated static pull-down resistors on inputs to prevent floating states and offers high drive strength of up to 12 mA at 5 V. The component operates within a temperature range of -40°C to +125°C and is housed in an 8-pin SON (DTT) package.

Feature Summary

• Dual-rail design allows each port to operate independently from 1.1 V to 5.5 V
• Schmitt-trigger inputs enable reliable translation of slow or noisy signals
• VCC isolation and Ioff-float features support partial-power-down mode operation
• OE control logic with VCC(MIN) circuitry allows configuration from either supply rail

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 specific ordering suffix 'Q1' confirms automotive qualification status and ensure the 'DTTR' suffix matches the required SON-8 tape-and-reel packaging format. Confirm that the manufacturer part number aligns exactly with the requested specifications before finalizing procurement orders.

Selection Notes

Select this component when fixed-direction translation is required between two distinct voltage domains. It is suitable for applications needing Schmitt-trigger noise immunity and low quiescent current. Ensure the OE pin is properly managed to control output states during power transitions.

Part Context

This device belongs to the Texas Instruments TXU0202-Q1 family of translating transceivers. It is designed for asynchronous communication between data buses, providing non-inverting fixed-direction translation. The Q1 designation indicates compliance with automotive reliability standards.

Replacement Considerations

The TXB family level shifters are noted as pinout compatible alternatives. Verify functional requirements against the TXB series specifications if considering a substitute.

FAQ

How does the OE pin function regarding supply references?

The OE pin can be referenced to either VCCA or VCCB logic levels. Pulling it to GND places all outputs in a high-impedance state.

What protection is provided against floating inputs?

Inputs feature integrated static pull-down resistors to prevent channels from floating when undefined externally.