Shawn Wilton wrote : > I have to look at the spec since > I'm running the chip at 3.3V... I've been following this (and your other thread) but I do not remember seeing *that* piece of information ! You definitely have to check that the device supports whatever you are doing at that voltage ! According the the Programming Specification, the limits are : VDD level for word operations, program memory : 2.0 - 5.5 V (PIC12F675-ICD) 4.5 - 5.5 V (PIC12F629/675) VDD level for word operations, data memory : 4.5 - 5.5 V VDD level for bulk erase/write operations, program and data memory : 4.5 5.5 V Regards, Jan-Erik. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist