Re: [SI-LIST] : IBIS for SSTL_2

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From: D. C. Sessions ([email protected])
Date: Mon Apr 17 2000 - 10:14:58 PDT

Ronnen Lovinger wrote:
> HI guys,
> I am looking for IBIS models for SSTL_2 buffers.
> I am looking in to simulations to decide on the required type of
> SSTL_2 buffers (Class I or Class II) for my point to point application.
> Can anyone point out where I can find such models?
> thanks in advance

As usual, That Depends. If you're looking for IBIS models
for specific SSTL-2 devices then you'll have to check with
the vendors. If you mean a generic SSTL-II driver model,
then at present there aren't any published although the
EDA companies may have some for use by their customers.

At present the way that the SSTL-2 spec is written there is
no maximum driver strength, so unterminated SI sims will be
a bit pessimistic. For most point-to-point applications
Class I is adequate, but you're right to be careful.

Note: if anyone DOES have an IBIS driver model for SSTL-II,
the JEDEC committee responsible for SSTL-2 has an action item
to standardize such a beast. You, too, can be a part of
industry history.

D. C. Sessions
[email protected]

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