EmbeddedRelated.com
TXS0104VRUTR

TITXS0104VRUTR

Texas Instruments
Translation - Voltage Levels Four-bit bidirection al level shifter fo
Active3,462 in stock

Overview

The TXS0104VRUTR is a four-bit bidirectional voltage-level translator designed for interfacing between different logic voltage domains. It supports 1.65V to 3.6V on the A-port and 2.3V to 5.5V on the B-port, making it suitable for bridging low-voltage processors with higher-voltage peripherals. This device uses an auto-direction sensing architecture, eliminating the need for a dedicated direction-control signal.

Why Choose This Part

The TXS0104VRUTR simplifies PCB layout by eliminating the need for direction-control software or hardware signals. It features integrated pull-up resistors to support both open-drain and push-pull output types, and its UQFN package provides a compact 1.7mm x 2.0mm footprint for space-constrained designs. It also requires no specific power-supply sequencing, reducing the risk of latch-up during power-on cycles.

Applications

I2C Level Shifting
Translating SDA and SCL signals between a 1.8V microcontroller and 3.3V or 5V sensors in open-drain configurations.
Mixed-Voltage SPI
Interfacing low-voltage FPGAs or MCUs with legacy 5V SPI peripherals at data rates up to 24Mbps.
UART Logic Translation
Bridging TX/RX lines between system-on-modules (SoM) operating at 1.8V and standard 3.3V UART debug headers.
General GPIO Interfacing
Connecting status LEDs, buttons, or interrupt lines across different power domains in multi-rail embedded systems.

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

To use this part, connect the lower voltage rail to VCCA and the higher voltage rail to VCCB. Ensure the OE (Output Enable) pin is tied to VCCA through a pull-down resistor to keep the I/Os in a high-impedance state during power-up. For prototyping, utilize a UQFN-12 to DIP breakout board or search for TXS0104E evaluation modules from Texas Instruments.

TXS0104 Family

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

Part Number Package Stock
TXS0104VRUTR (this part) 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
TXS0104VQRUTRQ1 UFQFN-12 1,872

Also Consider

TXB0104RUTR TITexas Instruments - Designed specifically for push-pull applications where higher drive strength is required without the integrated pull-up resistors found in the TXS series.
74AVC4T245GU Nexperia - A high-speed alternative that uses a direction control pin for more robust signal integrity in high-speed data bus applications.