TXS0108E 8-Channel High-Speed Full Duplex Logic Level Converter Module

Safely bridge high-speed communication signals between low-voltage microcontrollers and higher-voltage peripherals with the Electroboat TXS0108E 8-Channel High-Speed Logic Level Converter Board. Designed for full-duplex, auto-direction sensing, this module converts voltages across 8 channels between 1.2V–3.6V (Port A) and 1.65V–5.5V (Port B) without requiring direction-control signals—making it ideal for SPI, I2C, UART, and SD card interfaces on Arduino, ESP32, STM32, and Raspberry Pi platforms.

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Tags txs0108e level converter 8 channel logic shifter txs0108e breakout 3.3v 5v level shifter electroboat logic converter bidirectional logic shifter spi i2c level converter

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Product Details :

The Electroboat TXS0108E 8-Channel High-Speed Logic Level Converter is an essential interface module for heterogenous digital electronics operating at different voltage levels. Built around Texas Instruments' TXS0108E IC, this board safely translates signal levels between 3.3V logic devices (ESP32, Raspberry Pi, STM32) and 5V logic sensors, displays, or microcontrollers (Arduino Uno/Mega).

Featuring automatic direction sensing, the TXS0108E automatically determines the direction of data flow per channel without requiring a dedicated direction (DIR) control pin from your processor. With data speeds supporting up to 110 Mbps (push-pull) and 1.2 Mbps (open-drain), this module handles high-speed SPI buses, SD card communication, UART serial ports, and multi-node I2C networks.

Key Features and Benefits

8 Independent Channels: Translates up to 8 separate I/O signal lines simultaneously in a compact module.
Auto-Direction Sensing: Eliminates the need for external direction control pins, simplifying software and circuit design.
Wide Dual-Rail Supply Range: Port A operates from 1.2V to 3.6V; Port B operates from 1.65V to 5.5V (VCCA must be $le$ VCCB).
High-Speed Data Performance: Supports up to 110 Mbps in push-pull driver mode and up to 1.2 Mbps in open-drain configurations.
Output Enable (OE) Control: Features an active-HIGH enable pin to place all 8 channels in a high-impedance state for low-power sleep modes.

Technical Specifications

Parameter	Specification
Level Shifter IC	Texas Instruments TXS0108E
Number of Channels	8 Channels (Full Duplex)
Port A Voltage ( $V_{CCA}$ )	1.2V to 3.6V DC (Lower Reference Voltage)
Port B Voltage ( $V_{CCB}$ )	1.65V to 5.5V DC (Higher Reference Voltage; $V_{CCA} le V_{CCB}$ )
Max Data Rate	110 Mbps (Push-Pull) / 1.2 Mbps (Open-Drain)
Direction Sensing	Automatic (No DIR control pin required)
Enable Pin (`OE`)	Active HIGH (Tie to $V_{CCA}$ for normal operation)
Operating Temperature	-40°C to +85°C

How to Use

Power Connections:
- Connect lower voltage source (e.g., 3.3V from ESP32/Raspberry Pi) to VCCA.
- Connect higher voltage source (e.g., 5V from Arduino) to VCCB.
- Connect common system ground to GND.
Enable Pin: Tie the OE (Output Enable) pin to VCCA (3.3V) to enable all 8 channels.
Signal Lines:
- Connect low-voltage signal lines (3.3V) to pins A1 through A8.
- Connect high-voltage signal lines (5.0V) to corresponding pins B1 through B8.

Applications

Interfacing 3.3V ESP32, STM32, or Raspberry Pi boards with 5V Sensors, Displays, and Relays
High-Speed SPI Flash Memory, SD Card Readers, and TFT Display Level Shifting
I2C & UART Bus Level Translation in Mixed-Voltage Systems
Automotive & Industrial Microcontroller Interface Conversion
STEM, Robotics, and Embedded Electronics Prototyping

Package Includes

1 x TXS0108E High-Speed Full Duplex 8-Channel Logic Level Converter Module
2 x Straight Male Header Pins (Unsoldered)

Shipping & Delivery

Free shipping on orders above ₹999 across India.
Dispatched within 1-3 business days.
Expected delivery: 3-7 business days depending on location.
Secure ESD and cushioned packaging to ensure safe transit of electronic components.