I ran it at 3V. I've posted the schematic at http://sujan.hallikainen.org/temp/schematic.pdf . I haven't looked at the datasheet in a while. I don't recall the 7V absolute max. That's pretty high! Harold -- FCC Rules Updated Daily at http://www.hallikainen.com - Advertising opportunities available! -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist