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Original question:

SN74AHCT574: About IBIS model

SN74AHCT574: SN74AHCT574: IBIS model request

Rohith Kumar Damodara
Prodigy 10 points
Part Number: SN74AHCT574
Other Parts Discussed in Thread: SN74AHCT125

Tool/software:

Hello TI E2E support,

This part thread for IBIS model has been updated 7 years ago. 

I believe I came across another thread which says that there is an old version of this part that works differently than the new design 

https://e2e.ti.com/support/logic-group/logic/f/logic-forum/358467/sn74ahct574-old-design-works-differently-than-new-design?tisearch=e2e-sitesearch&keymatch=SN74AHCT574#

I am trying to create some hyperlynx simulations for signal integrity testing.

I would like to know if you have an IBIS model unique to this device, rather than using a similar IBIS model that was quoted earlier in the thread as the SN74AHCT125.

The reason being we use many SN74ACHT574PW parts in our design and it would be very helpful to get some accurate simulations especially if there have been design changes over these last few years. 

  • 0
    TI__Mastermind 26010 points

    Hi Rohith,

    We currently don't have an IBIS model unique to this device. Your best bet as is would still be to use the AHCT125 since it's the same family and function (just different pin count). I would expect performance between the two to be extremely similar.

    Best,

    Malcolm