> I ran it at 3V. I've posted the schematic at > http://sujan.hallikainen.org/temp/schematic.pdf Thanks. Although the 5008 has more internal modules, it's similar in basic function to the 400x. I've had one sitting around here for a couple of years. It may have come from Russell. Turned out to be handy having one to hand anyway > I haven't looked at the datasheet in a while. I don't recall the > 7V absolute max. That's pretty high! It is when you compare it with the 3.6V max for an LF PIC. 7V seems to me to be more in line with a 5V Vcc If I had two of the 5008 I'd be trying it at 5V. For now, 3V. I'll drop a line to Winbond, see if they have any comment -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist