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LSF0102DCUR

TILSF0102DCUR

Texas Instruments
Voltage Level Translator Bidirectional 1 Circuit 2 Channel 8-VSSOP
Active57,428 in stock
Datasheet Digi-Key Compare Prices

Overview

The LSF0102DCUR is a two-channel, bidirectional multi-voltage level translator that facilitates signal communication between devices operating at different voltage rails from 1.0V up to 5.0V. It features auto-direction sensing, eliminating the need for a dedicated direction control pin and making it ideal for standard interfaces like I2C, SMBus, and MDIO. The device uses a passive switch architecture with low ON-resistance to minimize signal distortion across a wide range of translation levels.

Why Choose This Part

The LSF0102DCUR offers a high degree of flexibility with its wide translation range (up to 5V) and auto-direction sensing that simplifies PCB routing. It features a low standby current of 5uA and high-impedance I/O pins when disabled to conserve system power. The flow-through pinout design and VSSOP package make it suitable for space-constrained layouts while maintaining signal integrity.

Applications

I2C Level Shifting
Bridging 1.8V microcontrollers with 3.3V or 5V sensors and peripherals while supporting open-drain requirements.
SDIO Interface
Translating high-speed Secure Digital Input Output signals between processors and memory cards.
GPIO Voltage Matching
Connecting legacy 5V logic subsystems to modern low-power SOCs operating at 1.2V or 1.8V.
UART Communication
Bidirectional serial data translation for debug headers or inter-module communication in mixed-voltage systems.

Key Specifications

Features Auto-Direction Sensing
Output Type Open Drain, Push-Pull
Channel Type Bidirectional
Mounting Type Surface Mount
Package / Case 8-VFSOP (0.091", 2.30mm Width)
Voltage - VCCA 0 V ~ 5 V
Voltage - VCCB 0 V ~ 5 V
Translator Type Voltage Level
Number of Circuits 1
Channels per Circuit 2
Operating Temperature -40degC ~ 125degC (TA)
Supplier Device Package 8-VSSOP

Getting Started

To use this device, ensure VCCA is always less than or equal to VCCB. Place pull-up resistors on the I/O lines for open-drain applications like I2C, as the device is a passive switch that requires external sourcing to pull signals to the VCC rail. For rapid prototyping, seek out 8-pin VSSOP breakout boards or evaluate the LSF0102EVM evaluation module.

LSF0102 Family

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

Part Number Package Stock
LSF0102DCUR (this part) VFSOP-8 57,428
LSF0102DCTR Tape & Reel LSSOP-8 11,218