Adafruit PCA9546 4-Channel I2C Multiplexer by Liz Clark published January 11, 2023, last edited January 22, 2025 posted in Adafruit Products Arduino Compatibles CircuitPython Breakout Boards STEMMA Save New Favorite × Please sign in to include this guide in your list of favorites. You will be redirected back to this guide once you sign in, and can then save this guide as one of your favorites. Link Note Download Overview Pinouts CircuitPython & Python Python Docs Arduino Downloads Single page Feedback? Corrections? Text View Primary Products Adafruit PCA9546 4-Channel I2C Multiplexer $3.95 Add to Cart Featured Products view all 20-pin 0.1" Female Headers - Rainbow Color Mix - 5 pack $2.50 Add to Cart Break-away 0.1" 36-pin strip male headers in Various Colors Add from Store 4 Beginner Product guide Downloads Files PCA9546 Datasheet EagleCAD PCB files on GitHub 3D models on GitHub Fritzing object in the Adafruit Fritzing Library Schematic and Fab Print Page last edited March 08, 2024 Text editor powered by tinymce. Arduino