I2C Logic Level Converter
- Bi-directional 4-channel logic level converter for 5V and 3.3V systems
- Ideal for I2C, UART, SPI and other low-voltage digital interfaces
- Provides safe level translation between 5V and 3.3V logic
- Supports bi-directional communication without requiring a direction-control signal
- Compact module with convenient pin headers for easy prototyping
SKU: i2c-logic-level-converter
I2C Bi-Directional Logic Level Converter 5V to 3.3V
The I2C Logic Level Converter is a compact bi-directional level-shifting module designed to allow digital devices operating at different logic voltages to communicate safely. It is commonly used to interface 5V microcontrollers such as Arduino boards with 3.3V devices, sensors, displays and other peripheral modules.
The module provides separate high-voltage and low-voltage sides, typically connected to a 5V supply and a 3.3V supply. The built-in MOSFET-based level-shifting circuitry translates digital signals in both directions, making the module particularly suitable for I2C communication where the signal direction changes during operation.
In addition to I2C, the converter can be used for other compatible low-speed digital interfaces such as UART and SPI, provided the signal speed and electrical characteristics are suitable for the particular module and application.
With its simple four-channel design and easy-to-use header connections, this module is well suited for breadboard prototyping, Arduino projects, Raspberry Pi interfaces, sensors, displays and mixed-voltage embedded systems.
Technical Specifications
| Product Type | Bi-Directional Logic Level Converter Module |
|---|---|
| Channels | 4 Bi-Directional Channels |
| High Logic Voltage | 5V |
| Low Logic Voltage | 3.3V |
| Voltage Translation | 5V ↔ 3.3V |
| Direction | Bi-Directional |
| Primary Application | I2C Level Translation |
| Compatible Interfaces | I2C, UART, SPI and other suitable digital signals |
| Logic High Side | HV |
| Logic Low Side | LV |
| Control Signal Required | No dedicated direction-control signal required |
| Typical Applications | Arduino, Raspberry Pi, sensors, displays and mixed-voltage embedded systems |
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