> > a sub-Vss one that could cause the PIC to latch > > the slim chance that 10mA during reset causes latchup Because of the potential for a terminal failure it would be prudent for the OP to do some tests. Better to spend an hour or two now than organise an embarassing recall later -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist