TCA9548A I2C 8 Channel Multiplexer Module

Have you ever found the perfect I2C sensor, only to realize that its fixed I2C address prevents you from using multiple instances of it on the same bus? Don't worry; the CJMCU-9548 1-to-8 I2C multiplexer is here to save the day!

This multiplexer allows you to connect up to 8 I2C devices with the same address to a single microcontroller. Acting as a gatekeeper, it routes the commands to the selected I2C pins with your command, making it an invaluable tool for expanding your I2C bus.

How it Works: Using the CJMCU-9548 is straightforward. The multiplexer itself has a default I2C address of 0x70, but it can be adjusted to any address between 0x70 and 0x77. You simply write a single byte with the desired multiplexed output number to this address, and all future I2C packets will be routed to the selected port. In theory, you can use up to 8 multiplexers, each set to a different address (0x70-0x77), allowing you to control up to 64 devices with the same I2C address.

Specifications:

• Interface: I2C IIC
• Chip: TCA9548A
• Selectable I2C Address: 0x70-0x77
• Working Voltage: 1.65V - 5.5V
• Max Clock Frequency: 400KHz

Package Includes:

• 1 x TCA9548A I2C Multiplexer Breakout Board

Expand your I2C capabilities with the CJMCU-9548 multiplexer and effortlessly manage multiple I2C devices with the same address on a single microcontroller.