is a widely used 8-channel analog multiplexer/demultiplexer, but finding a single "official" SPICE model can be challenging because it is a legacy CMOS part. Instead of a single download link, users typically find these models through community libraries or derivative part models from major manufacturers. TI E2E support forums CD4051 SPICE Model Sources LTspice Community Libraries: The most reliable community source is the LTspice Groups.io archive, which contains a file including subcircuit definitions ( ) for the CD4051, CD4052, and CD4053. Manufacturer Alternatives:
If you cannot find a specific CD4051 model, you can often use high-speed CMOS versions as a substitute for behavioral testing: cd4051 spice model link
Without a proper model, your simulation might show perfect switching — while the real board shows signal distortion, crosstalk, or latch-up. Not fun. Manufacturer Alternatives: If you cannot find a specific
✅ (archived but still accurate) 🔗 [Insert link to model file from a trusted repo like GitHub or ECMag] Elara Vance stared at the simulation error on
Dr. Elara Vance stared at the simulation error on her screen for the tenth time. The red text blinked: "Missing model: CD4051_MUX."