On Thu, 23 Sep 2010 10:55:10 -0400, "Olin Lathrop" wrote: > RussellMc wrote: >=20 > I'm guessing that on the 3.3V only parts, MCLR does have a protection diode > like the other pins. =20 Right, so it's OK for *you* to make guesses... I suppose there is a well defined group for people who make guesses when there is a datasheet available... oh, that's right: "Morons" Rolf --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .