TCA9548A 1-to-8 8 way I2C 8-channel multi-channel expansion board IIC module development board 9548
Using it is fairly straight-forward: the multiplexer itself is on I2C address 0x70 (but can be adjusted from 0x70 to 0x77) and you simply write a single byte with the desired multiplexed output number to that port, and bam - any future I2C packets will get sent to that port. In theory, you could have 8 of these multiplexers on each of 0x70-0x77 addresses in order to control 64 of the same-I2C-addressed-part.
Technical parameters:
1. Supply voltage : 1.65V to 5.5V
2. I2C Address : 0x70 - 0x77
3. Frequency : 0 to 400kHz
4. 1 to 8 Channels
5. Power On Reset
Packing List:
TCA9548A Module * 1PCS
4000847280306 - greatit