https://devzone.nordicsemi.com/f/nordic-q-a/72535/52833-uart-power-consumptionhi support team, i found that 52833 UART power is different from 832, in SDK17.0.2, 832 is still 1.15 mA(with DMA), however 833 is about 0.437 mA(with DMA), 832 is still 0.300 mA(without DMA), however 833 is about 0.320 m A(without DMA), justen-USTelligent Community 13Thu, 18 Mar 2021 16:48:51 GMThttps://devzone.nordicsemi.com/thread/300764?ContentTypeID=1Thu, 18 Mar 2021 16:48:51 GMT137ad170-7792-4731-bb38-c0d22fbe4515:d87ae17f-7982-4a87-a3c9-45463611f0aeStian R&#248;ed Hafskjold<p>Hi, the UART will run from the internal peripheral clock, it cannot be controlled.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/299983?ContentTypeID=1Tue, 16 Mar 2021 03:00:11 GMT137ad170-7792-4731-bb38-c0d22fbe4515:018ec9c0-3fae-41b0-a429-f6c56dbca735William.wei<p>may i ask one question, can we select the uart clock source? or reduce the Frequency&nbsp;, so customer can reduce power consumption.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/299143?ContentTypeID=1Thu, 11 Mar 2021 02:50:40 GMT137ad170-7792-4731-bb38-c0d22fbe4515:b74c4d6f-817d-4cac-87fe-6724be81a243William.wei<p>Thank you!</p> <p>The performance is great&nbsp;in 833!</p> <p>Regards,</p> <p>William.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/298979?ContentTypeID=1Wed, 10 Mar 2021 12:26:39 GMT137ad170-7792-4731-bb38-c0d22fbe4515:f6daa7ad-c387-478b-afb5-f5ac75d54282Stian R&#248;ed Hafskjold<p>Hi, your measurements are in line with what I&#39;m measuring here as well.</p> <p>This is my result:</p> <table> <tbody> <tr> <td></td> <td>nRF52832</td> <td>nRF52833</td> </tr> <tr> <td>DMA</td> <td>1.18 mA</td> <td>0.44 mA</td> </tr> <tr> <td>no DMA</td> <td>0.27 mA</td> <td>0.30 mA</td> </tr> </tbody> </table> <p>There will always be a little chip to chip variation, so you will never measure exactly the same on two different samples.</p> <p>Regards,<br />Stian</p><div style="clear:both;"></div>