Date: Mon, 3 Nov 1997 09:00:01 -0500 (EST) From: "Ron G. Minnich" <rminnich@Sarnoff.COM> To: "Jamil J. Weatherbee" <jamil@trojanhorse.ml.org> Cc: =?iso-8859-1?Q?=DEor=F0ur?= Ivarsson <totii@est.is>, hackers@FreeBSD.ORG Subject: Re: 7400 gates effected by probe routine Message-ID: <Pine.SUN.3.91.971103085852.3031A-100000@terra> In-Reply-To: <Pine.BSF.3.96.971101205441.671A-100000@trojanhorse.ml.org>
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On Sat, 1 Nov 1997, Jamil J. Weatherbee wrote: > > Ah... Thanks, What your'e talking about a 7401 (open collector nor) or a > 7405 (open collector nand) (TTL Cookbook pg. 137), unfortunately I don't > have a choice with this > so I probably will just forget the probe routines. well, open collector have no issues with one "high" and one low, since open collector by design don't drive high, they just are open. There's no issue. Don't worry about it. use your probe routines. open collector was designed for wired-or. ron
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