Simpler works: The multiplexer uses I2C address 0x70, adjustable from 0x70 to 0x77. You write a single byte with the desired multiplexed output number to that port, and any future I2C data packets will be sent to this port. control: You can use 8 of these multiplexers at each 0x70‑0x77 address to control 64 identical I2C addressing sections. Wide matching: Compatible with 3V and 5V, so you can use it with any logic level, very practical, reliable and efficient. Practical use: Connect up to 8 I2C devices of the same address to a micro controller and route commands to a selected set of I2C pins. Use scenarios Prototyping with multiple I2C devices that share the same address on a single microcontroller. Organizing a project with several identical I2C peripherals by routing to specific sets of pins. Scalable expansion in embedded systems where you need to manage many devices with identical addresses without changing hardware.