Greetings, everyone! Please help me modify the model file of the SN74LVC2G132 chip so that my Multisim_14.3 recognizes and accepts it.
I've been struggling with this for quite some time—I’ve tried creating the model from scratch and modifying an existing similar model from the database, but nothing works. Here’s the situation in brief:
I downloaded the SPICE model file from the official manufacturer’s website: and I’m trying to integrate its contents into a new (or even a duplicate of an existing) Multisim database component.
For example, when creating a new component from scratch (even without a package, purely for simulation), I tried both options: a single-section component and a multi-section component.
While creating a single-section model, I received error messages indicating that the downloaded .cir file contains terminals for another section—which makes sense because the chip itself is two-sectioned! Then, when I attempt to create a new two-section component, I encounter new errors:
First, I receive an error message stating that multiple .SUBCKT expressions in a single file are not allowed—I managed to resolve this issue by converting these expressions into a hierarchical structure. After searching online for similar solutions, I moved the closing .ENDS operator from the first .SUBCKT expression (line 39) to the very end of the file—creating a hierarchy, since all subsequent .SUBCKT expressions ended up nested within the first one. This worked, but after running the simulation, I encountered new errors:
Specifically, I received two identical messages stating that due to the absence of some XSPICE model (what even is that?), both sections of my component would be skipped during the simulation...
On the official TI website, I’ve found models (for other components) not only in SPICE format but also in PSPICE—and now suddenly there’s an issue with missing XSPICE... I suspect that once I resolve this error, Multisim might demand QSPICE, or even ZSPICE—there’s a whole alphabet to go through!
When creating a multi-section component, Multisim requires loading a SPICE model text separately for each component section—but the downloaded file is just one. In this case, I uploaded the same file for each section, but I suspect that this file needs to be split, isolating the part specific to each section. How should this be done properly?
Or should this be approached differently altogether? Please advise.
I am attaching an archive containing the SPICE file downloaded from the official website (original version, without my modifications) and my test Multisim circuit, where I’ve temporarily connected the four-section74132N component (which works fine) in parallel with the two-section SN74LVC2G132 component (which doesn’t work).
If I manage to create a correct model for SN74LVC2G132, I would like to replace the aforementioned 74132N component in my circuit with it. That’s where this issue originated.
