RE: driver strength

Do not confuse driver strength to edge rates. The strength has nothing to
do with speed. There is no way to imply any goodness or badness in a model
by some kind of correlation between speed and current. Strength helps keep
speed up into high capacitive loads, more current is available to charge
the cap.
Tom Dagostino

-----Original Message-----
From: Peterson, James F (FL51) [SMTP:jfpeterson@space.honeywell.com]
Sent: Friday, October 23, 1998 10:20 AM
To: ibis-users@vhdl.org; D. C. Sessions
Subject: RE: driver strength

D.C. wrote :
        The i/v plots *ARE* the drive strength.
        Did you have something special in mind?
I guess I'm looking for a way of turning the IV curve into a number for
comparing with other drivers.
Background : I have a ibis model that was recently created and I'd like to
compare it with a known good driver....Just to make sure it's close. In
order to be fair I'd want to compare it with a model with similar driver
strength and edge rates.

Thanks for the input,
Jim Peterson
jfpeterson@space.honeywell.com <mailto:jfpeterson@space.honeywell.com>
Honeywell, Space Systems Division, M/S 934-5
13350 US 19 N., Clearwater, FL, 34624
813-539-2719

        ----------
        From: D. C. Sessions [SMTP:dc.sessions@vlsi.com]
        Sent: Friday, October 23, 1998 11:38 AM
        To: ibis-users@vhdl.org
        Subject: Re: driver strength

        Peterson, James F (FL51) wrote:
>
> Is there a way to evaluate an output buffers drive strength from
the i/v
> plots that are based on the ibis model?

        The i/v plots *ARE* the drive strength.
        Did you have something special in mind?

        --
        D. C. Sessions
        dc.sessions@vlsi.com
Received on Fri Oct 23 11:28:29 1998