An I2C splitter/mux based on the PCA9548A chip. This chip has one I2C input, and 8 outputs whcih can be connected to or disconnected from the main I2C bus.

Possible uses:
- Connecting multiple devices with the same address to one bus
- Disconnecting part(s) of the I2C bus

The board can be used with all microcontrollers, such as the Atmel AVR, Arduino/Freeduino boards, Microchip PIC, etcetera. Other computers/boards with an I2C interface (such as the Raspberry Pi) should also be able to control this module.

The module comes with all connectors pre-soldered


The PCA9548A chip is sold by NXP and TI and can be used interchanably. 

Documentation for the complete board

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I2C Splitter/Switch with PCA9548A/TCA9548A

  • Brand: BitWizard
  • Product Code: I2C-splitter
  • Availability: In Stock
  • €9.95

  • 30 or more €9.45
  • 100 or more €8.98

Tags: i2c, splitter, i2c splitter, i2c switch, switch, pca9548A, tca9548A, tca9548, pca9548, 9548