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Spice Model Link | Cd4051

: A more recent upload in the LTspice group's Files section is CD4051B_52B_53B_20241223.zip . This zip file contains the model files and, importantly, includes the accompanying schematic symbols ( .asy files) for the CD4051, CD4052, and CD4053, which saves you the step of creating them yourself.

: The LTspice Groups.io is a highly reliable archive where users share verified .lib , .sub , and .cir files for the CD4051. These models often include the necessary subcircuits to simulate the 8:1 multiplexing logic and transmission gate behavior. cd4051 spice model link

"Thank you. Your model just saved my project. For anyone else arriving here via 'cd4051 spice model link'—the model below works for VDD up to 15V. Watch out for Ron at low VDD." : A more recent upload in the LTspice

Below is a comprehensive guide to finding, selecting, and implementing a CD4051 SPICE model in your circuit simulations. Where to Find the CD4051 SPICE Model Link These models often include the necessary subcircuits to

The KiCad forum discussion linked earlier describes this process in detail for the ngspice simulator. It involves creating two separate subcircuits (one for multiplexing, one for demultiplexing) and using an .IF statement to select the correct signal path.

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