On Fri, Apr 25, 2003 at 09:19:30PM +0200, Wouter van Ooijen wrote:
> > RA4 does not have such a diode as it is used as the high
> > voltage 9+12v ish) programming voltage pin.
>
> A bit confused? HVP uses /MCLR, not RA4.

Correct. Also I've been meaning to get into this thread. Even though RA4
doesn't have a clamp diode, every datasheet that I've seen recently does have
a maximum voltage specification for RA4. IIRC I've seen as low as 8V max.
I just took a quick peek at the 16F62X datasheet and it specifies 14V max.

Doom lies down the path of those who violate datasheet specifications.

Is this project so cost sensitive that it cannot afford a nickel transistor
and a penny resistor?

BAJ

--
http://www.piclist.com#nomail Going offline? Don't AutoReply us!
email listserv@mitvma.mit.edu with SET PICList DIGEST in the body