CAD/CAE Schematic Footprints and Symbols

Silicon Labs and Accelerated Designs Inc. have collaborated together to provide Silicon Labs' customers with schematic symbols and PCB footprints for Silicon Labs’ products. Both PCB footprints and schematic symbols are available for download in a vendor neutral format which can then be exported to the leading EDA CAD/CAE design tools using the free Ultra Librarian Reader. The Ultra Librarian software is a free downloadable reader which allows the user to view the '.bxl' files. It also allows you to export these symbols and footprints to other CAD tools using the Ultra Librarian software.
These parametric data components allow you to reliably create consistent CAD entities to an established standard with minimal effort and significant time savings.
Disclaimer: These .bxl files are provided as-is to assist you in your designs. Silicon Labs makes no warranty or guarantee regarding their use. You must verify the results of the file export against the published data sheet prior to building your board.
Step 3 - open the .bxl schematic file in Ultra Librarian Open the appropriate .bxl file; the Ultra Librarian software will open automatically.
Step 4 - export the desired file format Export the file to the desired PCB/CAD export format using the Ultra Librarian tool.

Audio Schematic and Layout Files

Class D Audio Drivers


MCU Schematic and Layout Files


Sensor Schematic and Layout Files

Proximity and Ambient Light Sensors


Export Formats

The Ultra Librarian Reader exports files for the following tools*:
  • Allegro
  • Altium Designer
  • AutoCad DXF
  • BoardStation
  • Concept
  • Design Architech
  • DDE
  • Eagle
  • Expedition
  • OrCAD Layout
  • PCAD
  • PowerLogic
  • PowerPCB
  • Target 3001
  • ViewDraw EPD