https://devzone.nordicsemi.com/f/nordic-q-a/62809/flash-reliabilityIs there data on flash durability? This is written in the spec: The Flash can be read an unlimited number of times by the CPU, but it has restrictions on the number of times it can be written and erased and also on how it can be written.en-USTelligent Community 13Fri, 19 Jun 2020 20:04:56 GMThttps://devzone.nordicsemi.com/thread/256009?ContentTypeID=1Fri, 19 Jun 2020 20:04:56 GMT137ad170-7792-4731-bb38-c0d22fbe4515:85977300-cd73-45c4-bbd8-1c05c3731e89Ole Morten<p>This is normally specified in the Product Specification, for instance&nbsp;<a href="https://infocenter.nordicsemi.com/topic/ps_nrf52840/nvmc.html?cp=4_0_0_3_2_9_0#unique_2120716477">here</a> for the nRF52840. As you can see, a flash page can be erased a minimum 10000 times.</p><div style="clear:both;"></div>