From owner-ibis-users@eda.org Tue Oct 23 08:01:52 2001
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From: "Muranyi, Arpad" <arpad.muranyi@intel.com>
To: ibis-users@eda.org
Subject: RE: GND/PWR Clamp Data Collection
Date: Tue, 23 Oct 2001 08:03:09 -0700
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Adam,

The buffers should be 3-stated when measuring clamps.

Arpad Muranyi
Intel Corporation
=====================================================

-----Original Message-----
From: Adam.Tambone@fairchildsemi.com
[mailto:Adam.Tambone@fairchildsemi.com]
Sent: Tuesday, October 23, 2001 6:17 AM
To: ibis-users@eda.org
Subject: GND/PWR Clamp Data Collection


Hello All,

I have noticed slight differences in ground clamp curves for 3-state
buffers dependent on whether the data was gathered when the device is
driven high or low ( output hi-Z ).  I have found the same to be true for
power clamp curves.  Should this be of concern?  I have not found a
standard in the Cookbook or the Spec with regard to whether the device
should be driven high or low when GND and PWR clamp curves are gained.  Is
there a standard?

Thanks,
Adam Tambone