Quote Originally Posted by JohnPaul View Post
JohnS, I bought this regulated variable PS. They go by 1.5, 3, 4.5, 6, 9v, 12v. No +5v! I like it because it's so portable than those high Amp PS. So I was playing with the PIC with 4.5v and ocassionally switching to 6v. Could I have caused the untimely dead of my PIC? Later, I retrieve one of my breadboard with a T7805. Just to make sure the LCD and Chip now has the recommended (or was it REQUIRED) voltage?
Hahaha...
Regards,
JohnPaul
The PIC (and everything else mentioned so far) will run just fine off 4.5v, and the occassional switchover to 6v probably won't hurt it much either. Datasheets say 7V is 'absolute maximum' rating, not recommended for any length of time. I've accidentally ran a couple of my PIC's at 9v before, they still run, not saying they're not damaged and won't fail before the others, but they do still work.