M24C01-R behaviour on power-loss

[CptSlow]

I'm looking to add a serial EEPROM to a product, and have a somewhat odd situation. The device will loose power spontaneously and often (few times an hour).

 

My question is: What happens if the M24C01-R looses power during a write operation?  I assume at least that byte will potentially be corrupted, but does it have any other effects?   What about if I write a whole page? Will the whole page be erased before the writing starts ?

 

 ( Of course I'll add CRC checks on the data so I know if I can trust it or not )

[Peter BENSCH]

Welcome @CptSlow, to the community!

AN2014, section 6.2, will answer your questions and give you some recommendations.

Hope that helps?

Regards
/Peter