Hello Aaron >I am unable to erase my brand new 16C65A! After three or four UV >erasures the chip no longer responds to MPLAB. What have I done wrong >and is it correctable? If you have set the fuses on writing to the PIC you can, so I know, forget it :-( schaedle@swol.de \ olle / schaedle@usa.net \/\/olfgang DB6TE @ DB0CZ