> No it will not run at 240mV, but is that enough to keep the internal > logic powered up so that the program would not run correctly > because of corrupted registers? Ah , I see, the voltage during "power off" stays at about 240mV and doesn't go to a flat zero. OK. Well, the BOR should take care of that, doesn't it ? And you would get a normal POR when the voltage on Vdd is high enough (over the BOR level). This is so low so I think that the PIC with do a POR even with BOR disabled. B.t.w, what are the "associated start up problems" you was talking about ? Tell us, and it might be easier to understand what's going on... Another thing that *might* be a problem is a to slow rise of Vdd, but I think that BOR will take care of that, if enabled. Jan-Erik. -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics