> The datasheet tells me that the max clock speed is (usually) 20MHz for > my 16F-chips. What would happen if I, say, put a 100MHz clock to the > PIC? Crapped up timing (as if the PIC was on drugs), or core meltdown > due high currents (or similiar)? Sigh.. No, you won't kill the device, but you know those maximum clock rates are there for a reason.. Even if it seems to function, there's no guarantee that the next device will, or if all the instructions will work, or that ANYTHING will work. When you color outside the lines, you enter the land of "anything can happen". -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist