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Path: utzoo!watmath!clyde!bonnie!akgua!sdcsvax!sdcrdcf!hplabs!hp-pcd!grant
From: grant@hp-pcd.UUCP (grant)
Newsgroups: net.micro.cbm
Subject: Re: Reset switches
Message-ID: <18900005@hpcvrd.UUCP>
Date: Sat, 16-Mar-85 19:25:00 EST
Article-I.D.: hpcvrd.18900005
Posted: Sat Mar 16 19:25:00 1985
Date-Received: Mon, 1-Apr-85 03:47:58 EST
References: <1029@topaz.UUCP>
Organization: Hewlett-Packard - Corvallis, OR
Lines: 11
Nf-ID: #R:topaz:-102900:hpcvrd:18900005:000:524
Nf-From: hpcvrd!grant    Mar 28 16:25:00 1985


As to the likelihood of hurting the 7406, forget it.  The thing is
open-collector; there is only an NPN to ground, so shorting its output to
ground is NO problem. (to +5 would be a different story.)  As to the
current, a pull-up resistor on the line is all that supplies it.  I'm not
looking at the schematic, but no more than 1-2 mA could flow.  Frank's
reset is fine.  The addition of one-shots would only be for debouncing the
switch (or making sure that if it's reset it is REALLY reset).

Grant K. Garner
hp-pcd!grant