Lifting up the EEPROM VCC pin and connecting a 0402 SMD resistor between the pin and the 5V circuit and a standard two terminals 3.3V zenner between Vcc and GND of the EEprom's SO package looks also good. It's not a big deal Rich, but the same amount of work (or less) will be desoldering and replacing the part. Vasile On 1/20/07, Rich wrote: > Hi guys: > I stupidly put 5 volts to a 3.3 volt part. I missed it in the checking and the PCB is fabbed. I thought of lifting the pin (can't cut the trace because it is an internal layer) and knocking down the voltage with a zener glue-on. I hope the zener impedance will be low enough. The part is an EEPROM. Has anyone had any experience with this type of fix? I will get new boards for production but I don't want to spring for another 300 bucks for a test board. I confess to stupid things from time to time. > -- > http://www.piclist.com PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist > -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist