4 Channel Logic Level Converter Bi-Directional Module 5V to 3.3V

This bi-directional logic level converter module safely interfaces devices operating at different voltage levels, particularly between 5V and 3.3V. It is especially useful for connecting microcontrollers like Arduino (5V) to sensors or modules such as ESP8266/ESP32 (3.3V).

The module features 4 independent channels. To operate, it must be powered by both system voltages: connect HV to the higher voltage (e.g., 5V), LV to the lower voltage (e.g., 3.3V), and GND to the common ground. Note: some channels may operate in "open-drain" mode, which might require pull-up resistors for I2C/SMBus buses.

Specifications

• 4 independent bi-directional channels
• Voltage range: 1.2V to 5.5V (LV) and 1.2V to 5.5V (HV)
• Maximum speed: approx. 100 kHz (standard I2C), up to several MHz for SPI/UART
• Connectors: terminal blocks or standard male pins