Short for Electrically Erasable Programmable ROM, EEPROMs are a type of non-volatile memory that allows data to be written to each address via electric signals. ROHM EEPROMs are capable of an industry best 1 million rewrites and retains data for up to 40 years. ROHM's unique double cell technology has been incorporated into the entire lineup, resulting in remarkably high reliability (zero accidental defects).
Short for Moisture Sensitivity Level, MSL is a JEDEC (Joint Electron Device Engineering Council) standard established for the purpose of preventing device failure due to volumetric expansion of atmospheric moisture introduced into the resin package of semiconductor devices during reflow. The floor life of IC packages, during which the components must be mounted and reflowed after opening the moisture-resistant packaging, is broken down into 8 MSL levels.