Parameters：
Working voltage: 1.65V~5.5V
IIC clock frequency: 0~400KHz
Working environment temperature: -40℃~85℃
Small board size: 31.5x21.4mm/1.24x0.84in, with two M3 mounting holes

Features:
1 to 8 bidireccional translating switches
Active-low reset input
Three address pins—up to 8 TCA9548A devices on the same I2C bus
Channel selection through an I2C bus
Operating power supply voltage range: 1.65V to 5.5V
5V tolerant pins

Introducing：
The I2C communication protocol allows you to communicate with multiple I2C devices on the same I2C bus as long as all devices have a unique I2C address. However, it will not work if you want to connect multiple I2C devices with the same address.
I2C multiplexer allows you to communicate with up to 8 I2C devices with the same I2C bus. The multiplexer communicates with a microcontroller using the I2C communication protocol. Then, you can select which I2C bus on the multiplexer you want to address.
To address a specific port, you just need to send a single byte to the multiplexer with the desired output port number.

Package includes：
5 x TCA9548A I2C IIC Multiplexer Breakout Board