TXS0108E 4/8 Channel Logic Level Converter Module Bi-Directional IIC I2C SPI UART 3.3V 5V for Arduino ESP32 DIY Kit Electronic

Logic Level Converter Module 4 Channel 8 Channel IIC I2C TXS0108E Bi-Directional 3.3V 5V for ArduinoProduct OverviewWhen working with microcontrollers, you often need to connect 5V devices to 3.3V systems. Voltage mismatch can cause communication failure or even damage components. Our level converter modules solve this problem perfectly.Two models available in this listing:Key Features & BenefitsCommon Features:✅ Bidirectional conversion, no direction control needed✅ Breadboard compatible✅ Unsoldered, pin headers included✅ Anti-static bag packagingProduct Description4-Channel Logic Level Converter (Discrete MOSFET Design)Built with classic BSS138 MOSFET circuit, designed specifically for 3.3V↔5V bidirectional communication. Supports UART, IIC, SPI, 1-wire interfaces with stable communication up to 28800bps. Compact size (16×13mm) fits directly into breadboards. Ideal for Arduino to 3.3V sensor communication, 5V microcontroller to 3.3V serial module connections.8-Channel Logic Level Converter (TXS0108E Integrated Chip)Powered by the original TXS0108E chip, supports bidirectional conversion between 1.2V, 1.8V, 2.5V, 3.3V, and 5V systems. 8 channels operate simultaneously with high-speed full-duplex capability. Built-in OE pin (active high) allows output control. Perfect for multi-voltage systems, SD card communication, and complex multi-signal conversion.⚡ Quick Start Guide & Important Tips Usage Steps1. Power: Connect LV/VCCA to low voltage supply, HV/VCCB to high voltage supply, and common GND2. Signals: Connect low voltage signals to LV/A ports, corresponding high voltage signals to HV/B ports3. OE (8-channel only): Connect to VCCA for normal operation, or GND to disable outputs4. Communication: Power on and start communicating – conversion happens automatically Important Notes⚠️ Must share common ground: Connect GND from both sides together⚠️ Not a power converter: This module is for signal level conversion only (mA-level current)⚠️ Power sequence: Connect power and ground before connecting signal lines⚠️ 4-channel speed limit: Max stable baud rate 28800bps – choose 8-channel for higher speeds⚠️ OE pin (8-channel): If not used, connect to VCCA to keep enabled Common Questions❓ How to choose between 4-channel and 8-channel?4-Channel: Best for simple 3.3V↔5V communication like IIC sensors or serial downloads. Lower cost.8-Channel: Ideal for multi-signal conversion, high-speed communication, and multi-voltage systems (1.8V/2.5V/3.3V/5V). More powerful.❓ Do I need to solder?Both modules come unsoldered but include pin headers. You'll need to solder the headers before use.❓ Does it support IIC and SPI?Yes! Both modules support IIC, SPI, UART, 1-wire, and other common buses. Bidirectional communication is automatic.❓ Can multiple signals be converted simultaneously?Yes. All channels work independently and simultaneously.❓ Why is my 4-channel module not working at high baud rates?The 4-channel module has a stable max baud rate of 28800bps. For higher speeds (115200bps+), choose the 8-channel TXS0108E module.❓ How should I connect the OE pin on the 8-channel module?OE is active high. For normal operation, connect to VCCA (low voltage side). To disable outputs, connect to GND.❓ Do both sides need a common ground?Yes! The GND pins must be connected together for proper signal transmission.❓ Can this be used as a power converter?No! This module is for signal level conversion only (mA-level current). Do not use it to power devices.