>This DOES seem to hold true for what I am doing. If I reduce my Vdd to 3 >volts, the uC stops functing. I can then increase to 5V and ramp up reset >through an RC network and it does not reset correctly. > -- Paul Greenwood -- (pablo@austin.ibm.com) Why, pray tell, do you reduce Vdd to 3 volts and then increase back to 5V? And by what means? - JohnR -- John R. Haggis haggis@netcom.com Millennium Research (408) 269-1814 vox (408) 269-9323 fax