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IBIS Model for Latest Dies Shrink for the SN74LVC2G17DCK

Hi TI,

My name is Ned Dempsher and I'm a signal integrity engineer here at L-3 Communications.

We have an existing product that uses your SN74LVC2G17DCK and understand that a die shrink has occurred.

I am being asked to make sure that our design will be able to accommodate a drop-in replacement of this newer die but the IBIS model I have is for the older die.

Could you generate an IBIS model for the newer die shrink from your SPICE models so that I can do the necessary simulations to validate the new die?

Thanks Very Much TI!

Ned 

  • Hi Ned,

    I'm looking into this and am waiting access to the necessary databases.

    A die shrink doesn't necessarily require a new model if they've not changed the process and/or design of the buffers.

    Having said that, it is true that typically when a die shrink occurs, it's because the design has been ported to a new process with tighter geometries.

    Once I've found out what's going on behind the scenes, I'll let you know. If a new model is required, then it'll be best for you to contact your TI sales to technical rep to get them to submit the model request. That way, they'll be able to let you know when it's ready. Doing that full handshake protocol.

    Regards,

    David Larkin

    Webench Design Center

  • Hi David,

    How are things going with this.

    Do you know whether there is going to be a new SPICE/IBIS model issued for this die shrink because rise tmes have changed or are they keeping the same models.

    Thanks Much,

    Ned

    Need to close this ASAP David.

  • Hi Ned,

    The device was qual'ed by similarity (QBS). This might mean that the process wasn't changed, or that it qual'ed because similar devices were released (LVC2G07).

    I've contacted the designer and am awaiting word from him. I should be able to get you an answer in the next day or so.

    David

  • Hi Ned,

    It appears that the shrink version is in a different process than the original part. This means that a new model will be needed.

    Please contact your local TI sales or FAE representative and have them submit a model request. They'll be able to track the model and notify you when it is available.

    I apologize for the delay in getting you a correct model.

    Sincerely,

    David Larkin

    Webench Design Center 

  • Thanks David,

    Do you have a rough idea of the time frame for the model?

    Ned

  • Hi Ned,

    Sorry for the delay - Here is the new IBIS model.

    Regards,

    Jerome

    sn74lvc2g17.ibs