Eric Cina

EEPROM Erase on Power down or up

Discussion created by Eric Cina on Mar 27, 2008
Latest reply on Aug 30, 2011 by Szymon Mroczek
We have a legacy product that is using the MC68HC812A4 micro.  We recently have several units where the EEPROM appears to have been wiped out.  This problem is very hard to reproduce and I don't have very many clues as to why this is happening.
Should I be concerned with power up, power down, and/or resets causing the EEPROM to be wiped out?  Anybody know anything about this?  We are using a DS1233 reset chip with our micro.
Thanks in advance,