https://devzone.nordicsemi.com/f/nordic-q-a/125759/nr21540-mode-pinHi According to the errata at https://docs-be.nordicsemi.com/bundle/errata_nRF21540_Rev2/attach/nRF21540_Revision_2_Errata_v1.2.pdf?_LANG=enus, a 33k resistor is required when pulling the MODE pin high. Question: How critical is the resistor valueen-USTelligent Community 13Tue, 25 Nov 2025 14:13:47 GMThttps://devzone.nordicsemi.com/thread/555401?ContentTypeID=1Tue, 25 Nov 2025 14:13:47 GMT137ad170-7792-4731-bb38-c0d22fbe4515:9a89be15-c085-410b-8c56-949afb63be50Priyanka<p>Hi Rashid,</p> <p>The 33kOhm is what we recommend to use for ideal power consumption, in order to keep the current draw minimum.</p> <p>Theoretically speaking you could use any other value if this is not a big concern, but 33kOhm is what we have tested and recommend.</p> <p>-Priyanka&nbsp;</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/555177?ContentTypeID=1Mon, 24 Nov 2025 10:51:56 GMT137ad170-7792-4731-bb38-c0d22fbe4515:a711cc8e-d93d-4063-90aa-d7a96e617ee0Rashid Talib<p>Hi Priyanka</p> <p>Thanks for your reply. So I guess the 33k value was determined empirically and is not calculated according to known criteria?</p> <p></p> <p>Best regards<br />Rashid</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/555166?ContentTypeID=1Mon, 24 Nov 2025 09:49:40 GMT137ad170-7792-4731-bb38-c0d22fbe4515:8ae13165-86f1-41f6-bfed-43d527ed60e2Priyanka<p>Hi Rashid,</p> <p>I don&#39;t think there is any &quot;acceptable range&quot; for this. I would suggest you to follow the errata and use a 33kOhm series resistance to the MODE pin itself to mitigate the anomaly.&nbsp;</p> <p>-Priyanka</p><div style="clear:both;"></div>