Hi Like many others, I have had no problems with the Maxim RS-232 chips running at 3.6V. They have a nice table in the data sheet that includes the proper caps for 3.6V operation. The data sheet clearly states that they will run from 3.0 V to 5.5V supplies. They call out the capacitor values as minimums, so even a wide supply range design can be done with fixed values.
Like any other i/o chip, they are “the first to fail” when you get a nutty voltage issue between two devices. They are pretty rugged, but are not invincible. Lighting is not a friend … Bob > On Apr 1, 2016, at 1:34 AM, Mark Sims <hol...@hotmail.com> wrote: > > On the subject of RS-232 converter chips... I have had problems running > MAX3232's at 3.6V. Sometimes they work, sometimes they don't. Sometimes > they get freaky hot. The general symptom seems to be no -6V output. > > I've never had problems running MAX232A's at 3.6V, even though they are not > spec'd for it. Also, pay close attention to the recommended cap values, > then maybe ignore them. I wind up using 0.47 uF caps everywhere (having over > 20,000 of the little buggers handy). > > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
