Data retention time at higher temperature

[KaiTötterman]

Hi

The flash data retention time for nRF52832 have been specified for 10 years @ 40°C. Is there any data available what the retention time would be at higher temperatures than 40°C? The chip itself is specified for up to 85°C. What would be the flash data retention time at that temperature? What about at 70°C?

Cheers,
Kai

[Kenneth]

Hello,

These numbers are set very conservative, the flash IP used is actually qualified to 10years @ 85°C, but we do our own qualification, which is tested to 48years @ 40°C. However since the target application is consumer products, we have only specified minimum 10years @ 40°C in the datasheet. In any case you can rely on the flash retention to last for many, many years to come.

Cheers,

Kenneth

[KaiTötterman]

Thank you Kenneth. This was very helpful.

Kai

[Mika H]

Is the answer still same for nRF52840?