RE: [SI-LIST] : Bad IBIS models!

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From: Mayer, Mike (mikem@cp.artesyn.com)
Date: Wed Mar 15 2000 - 14:21:16 PST


I've had bad models that were promptly fixed by the manufacturer, which is
annoying but at least I end up with a good model.

The worst I've seen is the Motorola MPC860. The model available in their
"Engineer's Toolbox" is completely unusable. After going through their tech
support, I finally was able to exchange email with someone in engineering.
After one exchange I got a one sentence reply to my questions: "There is no
more information on this model".

The model is still there:

http://www.mot-sps.com/products/microprocessors/32_bit/mpc800/mpc860tools.ht
ml

The pin numbers are wrong (it's a BGA), the pin parasitics and C_comp are
missing, the clamp curves are incomplete, and it's from 1996, so it is
probably not representative of current silicon.

============================================================================
=
Mike Mayer Artesyn Communication Products, Inc
Senior Hardware Design Engineer Madison, WI
Mike.Mayer@cp.artesyn.com http://www.artesyn.com/cp
============================================================================
=

> -----Original Message-----
> From: Roy Leventhal [mailto:Roy_Leventhal@mw.3com.com]
> Sent: Wednesday, March 15, 2000 3:55 PM
> To: si-list@silab.eng.sun.com
> Subject: Re: [SI-LIST] : Bad IBIS models!
>
>
>
>
> Say What?
>
> How about when a vendor just tells you to go screw yourself
> when you ask for
> their IBIS model?
>
>
> Roy
>
>
>
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