https://devzone.nordicsemi.com/f/nordic-q-a/53065/mcu-turn-onsHow many tur on/off supports the NRF51822... ??? (Hard turn off. cutting off the current) Thanks!en-USTelligent Community 13Fri, 11 Oct 2019 07:58:59 GMThttps://devzone.nordicsemi.com/thread/214518?ContentTypeID=1Fri, 11 Oct 2019 07:58:59 GMT137ad170-7792-4731-bb38-c0d22fbe4515:e6fd280d-96c2-46ea-87ea-86d19c0f5588Simonr<p>Hi Nasib</p> <p>The nRF51 series is stated to have a minimum flash memory endurance of 20 000 write/erase cycles in the absolute maximum ratings of the <a href="https://infocenter.nordicsemi.com/pdf/nRF51822_PS_v3.3.pdf?cp=4_4_0_0">product specification</a>. So the chip should be able to take at least 20 000 writes to flash before kicking the bucket. This will equate to ~7 years of 6-7 flash writes a day.</p> <p>Best regards,</p> <p>Simon</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/214443?ContentTypeID=1Thu, 10 Oct 2019 14:53:50 GMT137ad170-7792-4731-bb38-c0d22fbe4515:79abcaa7-2195-4c4d-a498-596cee5b4d9dNasib<p>And flash writes?&nbsp;<br /><br />I mean, i want to write in a flash position a character. Always in the same position. Each time i turn on the MCU (6-7 times a day)&nbsp;</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/214282?ContentTypeID=1Thu, 10 Oct 2019 07:55:02 GMT137ad170-7792-4731-bb38-c0d22fbe4515:3491cf42-32a1-4272-bc83-d2f384572196Simonr<p>Hi Nasib</p> <p>There&#39;s not a limit to how many times you can hard reset the nRF5 series chips.</p> <p>Best regards,</p> <p>Simon</p><div style="clear:both;"></div>