Try Ramtron's FM24C04. It is a non-volatile EEPROM which uses ferroelectric cells. It has a deep write buffer, which means that it automatically autoincrements the write address. Therefore it only needs two wire (I2C) interface to your pic. Plus since it is ferro, it can have over a billion writes! Hope this helps anyone out there. Red Robert Hoar rwhoar@tecnet1.jcte.jcs.mil srhoar@global2000.net With Interest in Astronomy, Celestrial Navigation, Embedded Controls, Nuclear Power. For great search engines and other info try my web page