[SI-LIST] Re: IBIS Model for a Tri_State Pin
- From: "Ingraham, Andrew" <Andrew.Ingraham@xxxxxx>
- To: <ibis@xxxxxxxxxxxxxx>, "si-list" <si-list@xxxxxxxxxxxxx>
- Date: Thu, 16 May 2002 13:25:19 -0400
I think the answer is, "it depends."
If you change Model_type from OUTPUT to I/O, you would have a
tri-stateable buffer. You would need to add Vinh and Vinl values too.
But if the model didn't have [Gnd Clamp] and [Power Clamp] sections
already, you wouldn't be able to correctly mimic the buffer in the high
impedance state.
Andy
> ----------
> The IBIS File contain only the data for the activ OUTPUT.
> Is the model for the Tri_State a subset of the activ output ?
> If yes, how can I generate it ?
>
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