> You can addd another P-MOS in series with the VPP, just before the micro. > Source input, Drain output, Gate pull-down 100k to GND. > When needed to power down the micro, just apply Source voltage on the Gat= e. > > The solution may be overkill with all this components, but will > guarantee a clean power-down->up. Can be done, but it would require a change to for instance a pickit2 or=20 pickit3 programmer: the required signal is not available on the ICSP=20 connector. --=20 Wouter van Ooijen -- ------------------------------------------- Van Ooijen Technische Informatica: www.voti.nl consultancy, development, PICmicro products docent Hogeschool van Utrecht: www.voti.nl/hvu C++ on uC blog: http://www.voti.nl/erblog --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .