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TXB0104 4-Bit Bidirectional Voltage-Level Shifter

TITXB0104 4-Bit Bidirectional Voltage-Level Shifter

MPN: TXB0104NMNR
Texas Instruments
Translation - Voltage Levels 4-Bit Bidirectional Voltage-Level Shifte
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Overview

TXB0104NMNR is a 4-bit bidirectional voltage-level translator from Texas Instruments. It is used to connect logic devices that run at different supply voltages without requiring a separate direction-control signal. The part is commonly used for low-speed digital interfaces such as GPIO and simple control lines.

Why Choose This Part

TXB0104 is attractive when you need a compact, low-parts-count way to translate multiple digital signals in both directions. The device removes the need for a separate direction pin, which simplifies wiring and firmware integration. It is a practical fit for general-purpose, low-speed logic translation on mixed-voltage boards.

Applications

Mixed-voltage GPIO interfacing
Connect microcontrollers, sensors, and peripherals that use different logic levels.
Prototyping and breadboarding
Quickly bridge 1.8 V, 2.5 V, 3.3 V, and 5 V logic domains in lab setups.
Module and breakout board integration
Level-shift signals between development boards and add-on modules.
Simple control and status lines
Translate chip-enable, reset, interrupt, and general-purpose digital signals.
Embedded system bring-up
Help validate interfaces between parts that do not share the same I/O voltage.

Getting Started

Place decoupling close to the device and follow the TI datasheet guidance for pin usage and loading. The part is commonly used on mixed-voltage breakout boards and in MCU-to-peripheral interfaces, so it is easy to prototype on standard breadboards or custom PCBs. For design work, start from the Texas Instruments datasheet and reference application guidance rather than assuming it behaves like a simple passive translator.

Also Consider

TXB0108 TITexas Instruments - An 8-bit bidirectional translator if you need the same style of level shifting on more signals.
TXS0104E TITexas Instruments - Another 4-bit voltage translator option when you want a similar mixed-voltage interface approach.
SN74LVC1T45 TITexas Instruments - A single-bit translator that is useful when you need a direction-controlled level shifter for one signal.