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Date:      Sat, 1 Nov 1997 13:53:05 -0800 (PST)
From:      "Jamil J. Weatherbee" <jamil@trojanhorse.ml.org>
To:        hackers@freebsd.org
Subject:   7400 gates effected by probe routine
Message-ID:  <Pine.BSF.3.96.971101134241.459A-100000@trojanhorse.ml.org>

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During a device probing routine I noticed that it is possible for the
outputs of two 7400 TTL gates one in the high state and one in the low
state to be connected together for not more than 10 microseconds.  I was
looking at a transistor level diagram of a 7400 and would like to verify
the following.  That this should not damage the gate itself, just pull
about 10 times the normal current. I don't see anyway to get around this
without just removing the probe routine.  




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