Power failure while writing data to EEPROM

[MuhammedKoyuncu]

Hello everyone

I am using an EEPROM(M95M01-A125) working with SPI communication.
I save my data every 500ms intervals.

1-) How long can the EEPROM last?
2-) What precautions can be taken in case of power failure during data recording?

Kind regards

[lukaszadrapa]

Hi,

it seems this is a question rather for ST, not for NXP...

Regards,

Lukas

[MuhammedKoyuncu]

Hi,
The chip I gave was just an example.
I know it's generally used the same way.
What can we do in the software to avoid such a situation?

[lukaszadrapa · Accepted solution]

Well, in case of unexpected power-down, the brownout handling needs to be managed on application level. Typically, the data integrity can be secured by CRC over certain chunks of data etc. It is also good idea to have default data/configuration stored in MCU flash which can be loaded to EEPROM in case of some failure.

Regards,

Lukas