4-Channel I2C Logic Level Converter – Bi-Directional Voltage Module

The I2C Logic Level Converter is a compact and reliable 4-channel bi-directional module designed to safely step voltages between devices operating at different logic levels. It is ideal for interfacing 3.3V sensors with 5V microcontrollers or connecting mixed-voltage I2C, SPI, and UART components. With automatic direction sensing and simple wiring, this converter makes voltage shifting easy and efficient in embedded systems, robotics, and IoT applications.

Key Features

• 4-channel bi-directional voltage level shifting

• Supports I2C, SPI, UART, and general-purpose digital signals

• Works with 1.8V, 3.3V, and 5V systems

• Automatic direction sensing for safe communication

• Portable and lightweight design

• Comes with 2 rows of 6-pin contact headers

Technical Details

• Product Name: I2C Logic Level Converter

• Channels: 4 bi-directional lines

• Input Voltage (High Side): 3.3V to 5V

• Input Voltage (Low Side): 1.8V to 3.3V

• Supported Protocols: I2C, SPI, UART, GPIO

• Logic Direction: Automatic bi-directional

• Conversion Type: Passive MOSFET-based translation

• Operating Frequency: Up to 400kHz for I2C communication

• Material: ABS + metal

• Board Material: FR4 with tinned pads

• Contact Pins: 2 rows × 6-pin header

• Length: 16mm

• Width: 13mm

• Height: 3mm

• Weight: 2g

• Operating Temperature Range: -40°C to +85°C

• RoHS Compliant: Yes

Applications

• I2C communication between 5V and 3.3V devices

• Interfacing sensors, displays, and modules with different logic levels

• Arduino, ESP32, Raspberry Pi, and STM32 projects

• Robotics, automation systems, and embedded controllers

• Mixed-voltage circuits in IoT and development boards

Why Choose the I2C Logic Level Converter?

The I2C Logic Level Converter is a must-have module for modern electronics development. It allows smooth communication between devices operating at different voltages, preventing potential damage from mismatched signals. With its portable size, 2×6 pin contact headers, and reliable performance, it’s perfect for prototyping, learning, or production environments.

Package Includes

• 1 x 4-Channel I2C Logic Level Converter Module