Wouter van Ooijen wrote :

> > I was thinking along the lines of the max232 giving me "free" ~13+v
> > for the MCLR pin...
>
> IIRC the max chips double the supply voltage, and then negate it. So
> from a +5V you would get ~ +9.5V and ~ -9.0V (both will drop under
> load).Hm, how does the 3v versions of the MAX chips work then ?
By trippling the voltage ?

Jan-Erik.

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