I am making a data acquisition device using the ATMEL AT24C512 which is battery powered. I found that when the battery ran low the EEPROM has got erased. I have not introduced the supervisor as yet. Is this problem possibly because of the brownout ?
These chips are reset by :

Quote /*
MEMORY RESET: After an interruption in protocol, power
loss or system reset, any 2-wire part can be reset by following
these steps:
(a) Clock up to 9 cycles, (b) look for SDA high in each cycle
while SCL is high and then (c) create a start condition as SDA is high.
End Quote */

Is it possible that this sequence may have been created during the brownout period ?

The thing I have not been able to clear the chip memory in this manner by writing code for it.Has anyone tried the same ? If so I would appreciate the code fragment of the same .

Would appreciate clarifications / advice on how to overcome this problem !!

Kind regards
Thomas Fernando