RE: Ok Now What?
> Date: Sat, 1 Apr 2006 18:32:05 -0800Well, mine and a few other Hams I've done boards for have been running
> From: <scott@...>
> Subject: RE: Ok Now What?
> Wouldn't that mean putting +/- 9 volts on TTL inputs? Will the MAX232
> tolerate that?
like that for a several years now, with no ill effects.
I suppose adding (say) a 10k resistor between pin14 (T1out) & pin10
(T2in) would reduce the amount of current flowing into pin 10 and
onwards through whatever input protection diodes there are inside the
MAX232. If I get a bit of time tommorow I might try various
resistances and see what effect it has on the voltages applied to
pin10 (T2in) while watching it with a 'scope.
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