> > It appeared to work (delay loops, some I/O etc) at
> > 78.6432MHz

> For how long could you use that MCU? Was there any
> problem with overheating or anything else?

No, seemed to be OK for the rest of the day. I use Scenix
as well and know they are current hogs and do get warm. I
didn't notice that at all with the 452. Funny thing is, putting the
wrong crystal in was a pure accident, but it was right at a time
when things were so busy. Eventually I put the proper crystal
back in and carried on with what I was meant to be doing

And I've never thought to have another go at it !

-- 
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist