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TXS0104VQRUTRQ1

TITXS0104VQRUTRQ1

Texas Instruments
Translation - Voltage Levels Four-bit bidirection al level shifter fo
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Overview

The TXS0104VQRUTRQ1 is an automotive-qualified (AEC-Q100), 4-bit bidirectional voltage level translator designed for applications where different logic levels are present on the same bus. It supports translation between 1.65V to 3.6V on the A-port and 2.3V to 5.5V on the B-port without requiring a direction-control signal. This device is particularly effective for interfacing low-voltage microcontrollers with higher-voltage peripherals such as sensors or displays.

Why Choose This Part

The auto-direction sensing capability eliminates the need for a dedicated DIR pin, reducing PCB trace complexity and GPIO count on the host processor. It features a compact 12-pin UQFN package with 0.55mm pitch, making it suitable for space-constrained automotive and mobile designs. Integrated ESD protection and latch-up performance exceeding 100mA ensure high reliability in harsh electrical environments.

Applications

I2C/SMBus Level Shifting
Ideal for open-drain protocols like I2C where multiple devices operate at different supply voltages (e.g., 1.8V MCU to 5V sensor).
Automotive Telematics
Used in vehicle control units to bridge logic between infotainment processors and legacy automotive bus transceivers.
UART Logic Translation
Facilitates high-speed serial communication at up to 24Mbps between sub-systems with mismatched I/O voltages.
GPIO Voltage Bridging
Simplifies general-purpose I/O expansion in mixed-voltage systems without the overhead of direction-control pins.

Key Specifications

Data Rate 24Mbps
Output Type Open Drain, Push-Pull, Tri-State
Channel Type Bidirectional
Mounting Type Surface Mount
Package / Case 12-UFQFN
Voltage - VCCA 1.65 V ~ 3.6 V
Voltage - VCCB 2.3 V ~ 5.5 V
Translator Type Voltage Level
Number of Circuits 1
Channels per Circuit 4
Operating Temperature -40degC ~ 85degC (TA)
Supplier Device Package 12-UQFN (2x1.7)

Getting Started

When integrating this part, ensure the VCCA supply voltage is always less than or equal to VCCB to maintain proper operation. Connect the OE (Output Enable) pin to VCCA through a pull-down resistor to ensure high-impedance state during power-up or power-down. For prototyping, look for TXS0104E breakout boards, but verify that the automotive-grade V-Q1 variant is used for final production hardware.

Part of TXS Series Level Shifters family » TXS0104

TXS0104 Family

Comparing specs that differ across variants. The current part is highlighted.

Part Number Package Stock
TXS0104VQRUTRQ1 (this part) UFQFN-12 1,872
TXS0104VRUTR Tape & Reel UFQFN-12 3,462
TXS0104VRGYR VFQFN-14 2,792
TXS0104VDR SOIC-14 2,547
TXS0104VBQAR WFQFN-14 2,536
TXS0104VQBQARQ1 WFDFN-14 2,885
TXS0104VPWR TSSOP-14 1,589

Also Consider

TXB0104RUTR TITexas Instruments - Consider this for push-pull only interfaces that require higher drive strength but do not support open-drain architectures like I2C.
LSF0108RKSR TITexas Instruments - An 8-channel alternative if higher port density is required for wide data buses in a similar small footprint.