Tca9548A - Overview
TCA9548A I2C Multiplexer
The TCA9548A I2C multiplexer breakout allows you to connect up to eight I2C devices with identical addresses to the same microcontroller. With three adjustable pins for the I2C address, this breakout supports up to eight multiplexers, enabling a total of 64 devices with identical addresses on the same bus. It is simple to use since it communicates via I2C communication with a hardware-defined default address of 0x70 (which can be changed via jumpers on the board) and is designed for seamless Qwiic (formerly easyC) connectivity.

TCA9548A I2C multiplexer breakout
Which products is this documentation for?

I2C multiplexer TCA9548A breakout
333042
Key Features
- Default I2C address: 0x70 (adjustable via jumpers A0, A1, A2)
- Logic voltage level: 1.65V - 5.5V
- Operating voltage level: 1.65V - 5.5V
- Communication: I2C (multiplexing up to 8 devices per multiplexer)
- Connectors: Qwiic x10
- Based on: TCA9548A
- Mounting holes: 4
- Dimensions: 54 x 38 mm (2.1 x 1.5 inch)
You may also need

Qwiic cable
Qwiic (formerly easyC) compatible cables with connectors on both ends, available in various lengths.