[time-nuts] Lightning 1, tbolt 0.

Pete Stephenson pete at heypete.com
Fri Apr 1 07:22:49 UTC 2016


On Apr 1, 2016 00:10, "Mark Sims" <holrum at 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.

Are the MAX3232's genuine? I've had those issues with counterfeit ones but
the genuine Maxim ones have been rock solid for me.

Also, are the caps correctly sized? The advertised requirement for 0.1uF
caps is only for a particular voltage that I don't recall. Different
voltages in the range of acceptable voltages require different
capacitances; check the data sheet.

Cheers!
-Pete



More information about the Time-nuts_lists.febo.com mailing list