PCA9546 4-Channel I2C Multiplexer Module for and

PCA9546 4-Channel I2C Multiplexer Module for and Description

Enhanced Connectivity: This PCA9546 4-Channel I2C Multiplexer is the perfect solution for projects requiring multiple I2C devices. It allows up to four I2C devices to communicate with your main controller, such as ESP32, for , or for , without address conflicts.
Qwiic Compatible: Features a Qwiic connection system enabling quick and reliable hook-up with other Qwiic devices. This plug-and-play functionality simplifies prototyping and development, saving you time and effort.
Wide Compatibility: Designed to be universally compatible with a variety of microcontrollers including ESP32, ensuring seamless integration into your existing projects.
Easy to Use: No complex configuration needed. It's ready to use out of with minimal setup, making it ideal for both beginners and experienced enthusiasts.

Technical parameters
Chip model: PCA9546APW
Number of I2C channels: 4 channels
Main I2C address: 0x70 (default)
Voltage range: 2.3V - 5.5V
Maximum I2C rate: 400 kHz (Fast Mode)
Interface type: for STEMMA QT / Qwiic + pin header
Core functions
4-channel switching
1 I2C master device control 4 groups of I2C slave devices.
Solve I2C address problems (such as connecting multiple identical sensors).
Hot plug support
Standby current is only 1μA, energy saving.
Working voltage: 2.3V-5.5V, support 3.3V/5V system (such as for /for ).
For STEMMA QT / Qwiic 4-pin interface: no soldering, quick connection to the development board
Standard 2.54mm pin header: compatible with breadboards and PCBs.
Application scenarios:
Connect multiple identical I2C devices at the same time (such as OLED screens, temperature and humidity sensors).
Expand the number of I2C interfaces of for /for .
Build modular sensor networks (environmental monitoring, robot perception systems)
Color:As Shown
Material:PCB

Package Contents:
1 * PCA9546 Module
1 * pin header (need to be soldered)

Only the above package content, other products are not included.
Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.