Cd4051 Spice Model Link ((new)) Direct

: Manufactured by NXP, this is a direct equivalent. You may find models under this prefix on NXP's support pages . Where to Buy Hardware

LTspice will generate a standard box symbol. Note that the pins may be arranged randomly, so you may want to manually edit the symbol for a cleaner schematic. Pinout Verification: cd4051 spice model link

Nexperia offers excellent high-quality models for their 4000 series logic. : Manufactured by NXP, this is a direct equivalent

: Sites like DatasheetArchive aggregate various older models, though these should be tested against the physical CD4051 datasheet to ensure the RONcap R sub cap O cap N end-sub (On-Resistance) matches your specific voltage range. How to Use a CD4051 Subcircuit in LTspice Note that the pins may be arranged randomly,

pull-down resistors to ground on all outputs to prevent "floating node" errors.

often provide more realistic transmission gate (TG) behavior compared to basic "box" models. Supply Voltage: