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TXB0104RUTR

TITXB0104RUTR

Texas Instruments
Voltage Level Translator Bidirectional 1 Circuit 4 Channel 100Mbps 12-UQFN (1.7x2)
Active75,851 in stock

Overview

The TXB0104RUTR is a 4-bit bidirectional voltage-level translator featuring automatic direction sensing and a 100Mbps data rate. It allows for seamless communication between ICs operating at different logic levels, supporting a wide range from 1.2V to 3.6V on the A-port and 1.65V to 5.5V on the B-port. The device utilizes a push-pull architecture that eliminates the need for a direction-control signal, simplifying PCB layout.

Why Choose This Part

This translator features automatic direction sensing, which removes the requirement for a GPIO-driven DIR pin, saving processor overhead and board space. It includes Vcc isolation, ensuring that if either Vcc input is at 0V, all outputs enter a high-impedance state to prevent back-current. With a low 5uA maximum standby current and integrated ESD protection, it is optimized for power-sensitive and robust consumer electronics.

Applications

I2C/SPI Level Shifting
Bridging low-voltage microcontrollers (1.8V) to high-voltage peripherals (3.3V or 5V) without manual direction control.
Mobile Device Interfacing
Connecting low-power application processors in smartphones or tablets to legacy sensors and modules.
GPIO Voltage Translation
Providing safe signal translation for general-purpose IO pins between different power domains in complex embedded systems.

Key Specifications

Features Auto-Direction Sensing
Data Rate 100Mbps
Output Type Tri-State, Non-Inverted
Channel Type Bidirectional
Mounting Type Surface Mount
Package / Case 12-UFQFN
Voltage - VCCA 1.2 V ~ 3.6 V
Voltage - VCCB 1.65 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 (1.7x2)

Getting Started

To use this part, ensure the VCCA supply is always less than or equal to VCCB and that the OE pin is referenced to VCCA. For evaluation, use a breakout board or a breadboard-friendly module to test signal integrity at high data rates up to 100Mbps. Designers should avoid using this part with open-drain buses like standard I2C unless external pull-up resistors are carefully sized to avoid interfering with the internal one-shot architecture.

TXB0104 Family

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

Part Number Package Temp Range Stock
TXB0104RUTR (this part) Tape & Reel UFQFN-12 -40degC ~ 85degC (.. 75,851
TXB0104 SOIC-14 -40degC ~ 85degC (.. 11,696
TXB0104RGYR VFQFN-14 -40degC ~ 85degC (.. 13,239
TXB0104QPWRQ1 TSSOP-14 -40degC ~ 125degC ..
TXB0104PWR TSSOP-14 -40degC ~ 85degC (.. 10

Also Consider

TXS0104E TITexas Instruments - An alternative with internal pull-up resistors specifically optimized for open-drain applications like I2C.