The CJMCU TCA9548A I2C 8 Channel Multiple extensions development board is interesting in that it has an I2C address (0x70 by default) – and you basically send it a command to tell it which I2C multiplexed output you want to talk to, then you can address the board you want to address.

Features:

• 1-to-8 Bidirectional Translating Switches
• Supports Hot Insertion
• Low Standby Current
• Active-Low Reset Input
• Power Up With All Switch Channels Deselected
• I2C Bus and SMBus Compatible
• 5-V Tolerant Inputs
• Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II

 

Package Includes:

• 1 x CJMCU TCA9548A I2C 8 Channel Multiple extensions development board