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TXS0104EPWR

TITXS0104EPWR

Texas Instruments
4-bit version from the same family for designs that only need a smaller number of bidirectional channels and slightly different tradeoffs.
NRND32,121 in stock
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Overview

The TXS0104EPWR is a 4-bit bidirectional voltage level translator designed for interfacing between different logic voltage domains without a direction-control signal. It supports translation between 1.65V to 3.6V on the A-port and 2.3V to 5.5V on the B-port, making it ideal for connecting low-voltage microcontrollers to higher-voltage peripherals. The device features auto-direction sensing and is compatible with both open-drain and push-pull CMOS logic outputs.

Why Choose This Part

The TXS0104EPWR eliminates the need for a DIR control pin, which simplifies PCB routing and reduces the number of GPIOs required from the host controller. It features integrated pull-up resistors optimized for open-drain applications while still supporting push-pull CMOS logic. Additionally, the device requires no specific power-supply sequencing, reducing the risk of latch-up during system startup.

Applications

I2C/SMBus Level Shifting
Translating SDA and SCL lines between 1.8V processors and 3.3V or 5V sensors in open-drain configurations.
SPI Interface Translation
Bridging 1.8V MCU GPIOs to 3.3V flash memory or display controllers at data rates up to 24Mbps.
UART Communication
Bidirectional logic level conversion for RX/TX lines between different system rails without requiring software direction management.
Mixed-Voltage SD Card Interfacing
Providing the necessary level shifting for SDIO signals between a low-voltage application processor and a 3.3V SD card.

Key Specifications

Features Auto-Direction Sensing
Data Rate 24Mbps
Output Type Open Drain, Push-Pull
Channel Type Bidirectional
Mounting Type Surface Mount
Package / Case 14-TSSOP (0.173", 4.40mm Width)
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 14-TSSOP

Getting Started

To use this device, connect the lower voltage rail to VCCA and the higher voltage rail to VCCB, ensuring VCCA remains less than or equal to VCCB. Place 0.1uF bypass capacitors close to the VCCA and VCCB pins to minimize noise. For prototyping, engineers often use the TXS0104EVM evaluation module to verify signal integrity at the target data rates.

Categories

Interface ICs > Level Shifters