I'm working on a project using the 18LF6520 running at 3.3V. As I read the datasheet, we can do ICSP programming at this voltage (with high voltage Vpp), but it does not appear we can erase the chip with this voltage (datasheet page 319). Does it look like I'm reading this correctly? THANKS! Harold -- FCC Rules Updated Daily at http://www.hallikainen.com -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist