nrf52810 : External pull-down on SWDIO PINhttps://devzone.nordicsemi.com/f/nordic-q-a/91654/nrf52810-external-pull-down-on-swdio-pinHi, we are currently trying to reduce the power consumption on our product that uses an nrf52810. An 1k pull-down resistor has been used on the SWDIO pin, but I don&#39;t really know why, as it seems that it induces an unnecessary current (there is a 3Ven-USTelligent Community 13Tue, 06 Sep 2022 11:09:54 GMTRE: nrf52810 : External pull-down on SWDIO PINhttps://devzone.nordicsemi.com/thread/384766?ContentTypeID=1Tue, 06 Sep 2022 11:09:54 GMT137ad170-7792-4731-bb38-c0d22fbe4515:df0937c5-f847-4c86-8373-f3673e505865Priyanka<p>Hi,</p> <p>We would always recommend (as <a href="https://devzone.nordicsemi.com/members/zara-wu-">Zara Wu</a>&nbsp;&nbsp;mentioned) , to follow our reference design which is as follows:<br /><img style="max-height:240px;max-width:320px;" src="https://devzone.nordicsemi.com/resized-image/__size/640x480/__key/communityserver-discussions-components-files/4/4201.pastedimage1662462524633v1.png" alt=" " /></p> <p>You can also visit <a href="https://infocenter.nordicsemi.com/topic/ps_nrf52810/ref_circuitry.html?cp=4_5_0_6_2_1#unique_905202899">our infocenter&nbsp;</a>&nbsp;for further details.</p> <p>Best Regards,</p> <p>Priyanka</p><div style="clear:both;"></div>RE: nrf52810 : External pull-down on SWDIO PINhttps://devzone.nordicsemi.com/thread/384760?ContentTypeID=1Tue, 06 Sep 2022 10:58:06 GMT137ad170-7792-4731-bb38-c0d22fbe4515:d8d44d51-f7d7-4125-ad9e-e3d52e50831aopasutto<p>Hi Zara Wu, thank you for your reply!</p><div style="clear:both;"></div>RE: nrf52810 : External pull-down on SWDIO PINhttps://devzone.nordicsemi.com/thread/384750?ContentTypeID=1Tue, 06 Sep 2022 09:51:30 GMT137ad170-7792-4731-bb38-c0d22fbe4515:fa90a0c7-3233-4716-b507-055c1715dc81Zara Wu <p>Hello,&nbsp;</p> <p>In these&nbsp;applications we have done, SWDIO and SWDCLK are directly connected, and the 52810 official manual reference design does not mention the need for pull-down resistors. It is recommended to follow the circuit design in the official manual.</p> <p></p> <p><img style="max-height:240px;max-width:320px;" src="https://devzone.nordicsemi.com/resized-image/__size/640x480/__key/communityserver-discussions-components-files/4/pastedimage1662457834698v1.png" alt=" " /></p> <p>Help it helps</p> <p>BR./Zara Wu (RF-star technology)</p><div style="clear:both;"></div>