I've done this (in a non-PIC circuit, but the same sort of thing) using a P-MOSFET with the gate tied high with a high-value resistor. PIC sets the pin LOW to keep power on, sets the pin as input (hi-Z) to turn off. Dale --- We are Dyslexia of Borg. Fusistance is retile. Your ass will be laminated. On Sat, 10 Aug 2002, Les Otter wrote: > Is this a sound design concept, and anyone suggest how to do it better? > Can't find anything on Google / PIClist Archive or FAQ. > Thanks in advance for any help. -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads