Qwiic Mux 4-Channel (PCA9546)
Connect up to 4 I2C devices that share the same address. Compact alternative to the 8-channel version.
About it
Connect up to 4 I2C devices that share the same address. Compact alternative to the 8-channel version.
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 4-Channel (PCA9546) 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
25.4 × 20.32 mm
The Mux 4-Ch board measures 25.4 × 20.32 mm and stands 4.8 mm tall with its parts. It has 4 mounting holes. These dimensions are from the maker’s mechanical drawing.
Free to reuse
Every fact here is open data under CC BY 4.0. Copy it into your own docs or code, and credit Palpable. Download it
This record was last changed on September 7, 2026.