Ram retention - which regions to retain on nrf52840

Ram retention - which regions to retain on nrf52840https://devzone.nordicsemi.com/f/nordic-q-a/74389/ram-retention---which-regions-to-retain-on-nrf52840Hi, I have spend some hard time trying to figure how to work with RAM retention. Looks like it is working for me now, but now I retain all available memory. How much energy this will consume additionaly in system off ? Is it 20nA * 15 * 9 = 2,7 uA en-USTelligent Community 13Tue, 27 Apr 2021 08:34:40 GMTRE: Ram retention - which regions to retain on nrf52840https://devzone.nordicsemi.com/thread/306942?ContentTypeID=1Tue, 27 Apr 2021 08:34:40 GMT137ad170-7792-4731-bb38-c0d22fbe4515:25e89be5-6a0e-4c73-a244-c62920f76d05Marjeris Romero<p>Hi,</p> <p>Numbers from the product specification:</p> <p>In System OFF, full 256kB RAM retention, wake on reset -> 1.86uA</p> <p>For RAM retention you can estimate power consumption to ~20nA per block,4kB per block.</p> <p>Best regards,</p> <p>Marjeris</p><div style="clear:both;"></div>