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SN74CBTLV3257: IBIS model

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Replies: 6

Views: 107

Part Number: SN74CBTLV3257

Hi Experts,

My customer is going to simulation with ibis data "SCDM013A.ZIP". They said that there is no data about below.

[Component] CBTLV3257_PW

[Pin] 4 pin and 7 pin

[Model] CBTLV3257_IO_33

They will simulation as output but noticed that there is no data for "rising waveform" and "falling waveform".

Could you please confirm it? 

Regards,

Uchikoshi

  • Hi Uchikoshi,

    We are currently looking into the issue. 

    To clarify, are you looking to see if the same errors occur when we run the model internally? 

    Best Regards,

    Parker

  • Hi Uchikoshi,

    Also when you say "rising waveform and falling waveform" are you talking about the transition time? 

    Best Regards,

    Parker 

  • In reply to Parker Dodson:

    Hi Parker,

    For example, SN74LVC245A ibis model includes [Rising Waveform] and [Falling Waveform].

    https://www.ti.com/product/SN74LVC245A#design-development

    SCAM006D.ZIP

    I think customer is pointing out it.

    Regards,

    Uchikoshi

  • In reply to Hisao Uchikoshi:

    Hi Uchikoshi,

    Yes I can confirm the IBIS model does not contain the above data that you have mentioned. It is not present in the file. Thank you for bringing this lack of data up!

    Best Regards,

    Parker Dodson

  • In reply to Parker Dodson:

    Hi Parker,

    Sorry that my request was not correct. Customer's request is to provide ibis data including these parameter to simulate the new design for new project. Can you support it?

    Regards,

    Uchikoshi

  • In reply to Hisao Uchikoshi:

    Hi Uchikoshi,

    Unfortunately we do not have this data, and since it's and an older part we probably won't be able to get the data either. 

    However, if there are any specific concerns with the switch turn on/turn off behavior of this part, I can help explain these issues for the part. 

    Best Regards,

    Parker 

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