Qwiic Mux 8-Channel (TCA9548A)
Connect up to 8 I2C devices that share the same address. Essential when using multiple identical sensors.
About it
The TCA9548A I2C multiplexer lets you use up to 8 sensors with the same I2C address on a single bus. Simply plug sensors into different channels and the system routes communication automatically. No configuration needed — Palpable detects and manages mux channels transparently.
Where to buy
Facts
Tested
It is in our catalog, but nobody has checked it on a real board. It may not work yet. Its driver is written, but it has not been tested on hardware yet.
I2C address
0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77
The Qwiic Mux 8-Channel (TCA9548A) answers at I2C address 0x70. A jumper or pin moves it to 0x71 or 0x72 or 0x73 or 0x74 or 0x75 or 0x76 or 0x77.
Board size
35.56 × 54.61 mm
The Mux 8-Ch board measures 35.56 × 54.61 mm and stands 4.6 mm tall with its parts. It has 4 mounting holes. These dimensions are from the maker’s mechanical drawing.
Chip
TCA9548A
Its port expander is the Texas Instruments TCA9548A.
Free to reuse
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This record was last changed on October 6, 2026.