2 channel Logic Level Converter (I2C, UART, 5V-3.3V)

2 Channel Logic Level Converter (I2C, UART, 5V–3.3V) is a compact and efficient solution for safe communication between electronic devices operating at different logic voltage levels. Designed to support bidirectional digital signal conversion, this module enables seamless interfacing between 5V and 3.3V systems, making it an essential component for modern embedded and IoT projects.

As many microcontrollers and sensors today operate at 3.3V while legacy boards and peripherals still rely on 5V logic, direct connections can cause unreliable communication or permanent damage. This logic level converter eliminates that risk by ensuring accurate voltage translation without signal distortion. It is ideal for I2C, UART, SPI (low-speed), and general-purpose digital communication.

With a simple plug-and-play design and clearly labeled pins, the 2-channel logic level converter is suitable for students, hobbyists, engineers, and professionals working on prototyping or production-level designs.

Key Features of 2 Channel Logic Level Converter (5V–3.3V)

• Bidirectional Logic Level Conversion
  Supports two independent channels for safe and automatic voltage translation between 5V and 3.3V logic levels.

• Optimized for I2C & UART Communication
  Ideal for I2C clock/data lines and UART RX/TX signals, ensuring stable and error-free data transfer.

• Automatic Direction Control
  No direction control pin required—automatically detects signal direction, simplifying circuit design.

• Wide Compatibility
  Works seamlessly with popular microcontrollers and development boards such as Arduino, ESP32, ESP8266, Raspberry Pi, STM32, and PIC.

• Compact & Breadboard Friendly
  Small PCB footprint allows easy integration into breadboards, PCBs, and compact enclosures.

• Low Power Consumption
  Efficient design ensures minimal current draw, suitable for battery-powered and low-power applications.

• High Signal Integrity
  Maintains clean logic transitions with minimal delay, ensuring reliable communication across connected devices.

Technical Specifications – 2 Channel Logic Level Converter

• Number of Channels: 2

• Logic Conversion: Bidirectional

• High Voltage (HV): 5V

• Low Voltage (LV): 3.3V

• Supported Protocols: I2C, UART, GPIO (low-speed SPI supported)

• Operating Voltage Range:

  • LV Side: 1.8V – 3.3V

  • HV Side: 3.3V – 5V

• Current Rating: Suitable for logic-level signals

• Input/Output Pins: HV1, HV2, LV1, LV2, HV, LV, GND

• PCB Type: FR4

• Operating Temperature: –20°C to +70°C

• Mounting: Breadboard / PCB compatible

Note: Not recommended for high-speed SPI or high-frequency signals.

Applications of 2 Channel Logic Level Converter

The 2 channel logic level converter (5V–3.3V) is widely used in various embedded and digital electronics applications, including:

Microcontroller Interfacing

Safely connect 3.3V microcontrollers such as ESP32, ESP8266, STM32, and Raspberry Pi with 5V devices like Arduino boards, sensors, and displays.

I2C Communication

Perfect for interfacing 3.3V I2C sensors (temperature, pressure, motion sensors) with 5V controllers, ensuring reliable clock and data line translation.

UART Serial Communication

Enables safe voltage shifting for TX and RX lines between devices operating at different logic levels.

IoT & Embedded Systems

Ideal for IoT projects where multiple voltage domains coexist, protecting sensitive low-voltage components.

Prototyping & Education

Widely used in academic labs, training kits, and DIY electronics projects for teaching digital communication concepts.

Robotics & Automation

Supports sensor-to-controller communication in robotic systems and automation equipment with mixed-voltage logic.

Why Choose This 2 Channel Logic Level Converter?

The 2 Channel Logic Level Converter (I2C, UART, 5V–3.3V) offers a simple, reliable, and cost-effective way to manage mixed-voltage digital communication. Its bidirectional operation, compact size, and compatibility with commonly used development boards make it a must-have module for embedded system designers.

Whether you are building a prototype, developing an IoT product, or integrating sensors into an existing system, this logic level converter ensures safe voltage translation, stable data transfer, and long-term reliability.

Upgrade your electronics design with this 2 Channel Logic Level Converter and protect your components while achieving seamless communication across voltage domains.

Package Includes:

1 x 2 channel Logic Level Converter (I2C, UART)

FAQ

1. Where can we buy this 2 channel Logic Level Converter?

This product is available online https://aiiottech.in/product/2-channel-logic-level-converter/ and also available at our store in Pudupakkam/Kelambakkam, Chennai-603103

2. When can I get this 2 channel Logic Level Converter after placing the order?

RGRJ AIIoT TECHNOLOGIES will immediately ship and deliver the product within 1-3 working days.

Video Link: Logic Level Converters