SN74LVC1G3157: Please share the Pspice model or un-encrypted model of HSPICE

Rajat Singh

Part Number: SN74LVC1G3157

Hi Dilip,

I am getting below error while using the HSPICE Model in LTSPICE.Looks like LT SPICE is not able to decrypt the HSPICE File.Please share the unencrypted model if possible

over 4 years ago

0 Ambroise Suter over 4 years ago

TI__Expert 3950 points

Hi Rajat,

The PSpice models for the TI Devices on the web are usually encrypted and can only run in PSpice. In order to import them into another simulator that supports PSpice models, an unencrypted model would be required.

What are you trying to simulate? Have you tried the IBIS model?

Best regards,

Ambroise

0 Rajat Singh over 4 years ago in reply to Ambroise Suter

Prodigy 80 points

Hi Ambroise,

Yes i have tried IBIS model in LT SPice. i am getting same error.

Kindly share unencrypted model.so i can proceed on this further.

I want to simulate one Dual purpose UART Circuit

0 Ambroise Suter over 4 years ago in reply to Rajat Singh

TI__Expert 3950 points

Hi Rajat,

Unfortunately we can't share un-encrypted models without an NDA.
I'll contact you directly for further discussions.

Best regards,

Ambroise

0 Saminah C over 4 years ago in reply to Ambroise Suter

TI__Genius 9132 points

Hi Rajat,

We were able to get unencrypted Spice model (attached). There is a HELP file that shows the HSPICE model hierarchy.

Note that the models are for Hspice, and they may not work in LTspice.

Thanks

Saminah

sn74lvc1g3157_unencrypted.zip

0 Rajat Singh over 4 years ago in reply to Saminah C

Prodigy 80 points

Hi Saminah,

This is also not working, :(

0 Saminah C over 4 years ago in reply to Rajat Singh

TI__Genius 9132 points

Hi Rajat,

The model was done for Hspice, which has different syntax from Pspice or LTspice.

An error is the unfortunate, but expected outcome.

However, see below (also attached) an approximation of the model (TINA file attached) – Depending on what specs/parameters you want to mode, I can provide more details.

3225.SN74LVC1G3157_Approximation.TSC

regards,

Saminah

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SN74LVC1G3157: Please share the Pspice model or un-encrypted model of HSPICE