Quote Originally Posted by mackrackit View Post
...Maybe not at 2 volts, but 2.5 is doable. Using the PICKIT2 for a PS, only goes down to 2.5. So I can not verify the 2 volts right now...
It is poor engineering practice to operate a device outside of the manufacturer's specs - take a look at the graph above where it shows that the minimum voltage is 4.2V for frequencies >25Mhz.