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TXS0108ERKSR

TITXS0108ERKSR

Texas Instruments
Translation - Voltage Levels Eight-bit bidirectio nal voltage-level s
Active3,096 in stock
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Overview

The TXS0108ERKSR is an 8-bit bidirectional voltage-level translator designed for interfacing between different logic voltage domains without a direction-control signal. It supports a wide operating range, with Port A handling 1.4V to 3.6V and Port B handling 1.65V to 5.5V, making it ideal for mixed-voltage systems using open-drain or push-pull architectures.

Why Choose This Part

The device features an auto-sensing architecture that eliminates the need for a DIR control pin, simplifying PCB routing and reducing firmware overhead. It provides robust protection with IEC 61000-4-2 ESD protection on the B-port and handles high-speed data rates up to 110Mbps in push-pull mode.

Applications

I2C and SMBus Level Shifting
Connecting 1.8V microcontrollers to 5V sensors or peripherals over bidirectional serial buses.
SD Card Interfacing
Translating logic levels between low-voltage application processors and standard 3.3V SD memory cards.
Mixed-Voltage GPIO Expansion
Interfacing modern 1.8V SoCs with legacy 3.3V or 5V peripheral ICs in industrial or consumer electronics.

Key Specifications

Data Rate 110Mbps
Output Type Open Drain, Push-Pull, Tri-State
Channel Type Bidirectional
Mounting Type Surface Mount
Package / Case 20-VFQFN Exposed Pad
Voltage - VCCA 1.4 V ~ 3.6 V
Voltage - VCCB 1.65 V ~ 5.5 V
Translator Type Voltage Level
Number of Circuits 1
Channels per Circuit 8
Operating Temperature -40degC ~ 125degC (TA)
Supplier Device Package 20-VQFN (2.5x4.5)

Getting Started

Ensure that VCCA is always less than or equal to VCCB during operation, and connect a bypass capacitor of 0.1uF to each supply pin. For prototyping, utilize the 20-VQFN footprint with a 0.5mm pitch, and pull the Output Enable (OE) pin low to place all I/Os in a high-impedance state during power-up.

Part of TXS Series Level Shifters family » TXS0108

TXS0108 Family

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

Part Number Output Type Package Temp Range Stock
TXS0108ERKSR (this part) Open Drain, Push-P.. VFQFN-20 -40degC ~ 125degC .. 3,096
TXS0108EQWRKSRQ1 Open Drain, Push-P.. VFQFN-20 -40degC ~ 125degC .. 4,995
TXS0108ENMER Open Drain, Push-P.. WFBGA-20 -40degC ~ 85degC (.. 3,270

Also Consider

TXB0108RGYR TITexas Instruments - Select this for push-pull applications only as it lacks the internal pull-up resistors required for I2C and open-drain buses.
FXMA108 ONonsemi - An alternative 8-bit dual-supply translator with similar auto-direction sensing capabilities and a wide voltage range.

Categories

Interface ICs > Level Shifters