https://devzone.nordicsemi.com/f/nordic-q-a/33011/new-nrf52840-dk-vs-pdk----which-mcu-revisionSee a new landing page on the nordic website for the nRF52840-DK (as opposed to PDK), which states that.. &quot;The nRF52840 replaces the nRF52840 PDK which is not recommended for new designs.&quot; 1. Does this new DK use a more recent revision of the MCUen-USTelligent Community 13Wed, 11 Apr 2018 12:46:52 GMThttps://devzone.nordicsemi.com/thread/127839?ContentTypeID=1Wed, 11 Apr 2018 12:46:52 GMT137ad170-7792-4731-bb38-c0d22fbe4515:49023679-175c-4777-b1b4-ddc285ab8a58Mttrinh<p>Hi,</p> <p>1. Yes, the new DK uses&nbsp;a more recent revision of the MCU.</p> <p>2. You should contact your RSM, he will be able help you. If you don&#39;t know who that is PM me and I will let you know.</p> <p>So the new high speed SPIM interface, NRF_SPIM3, are present on rev B and later.&nbsp;32 MHz is the highest supported data rate and this only applies to SPIM3. The other SPI masters are specified to up to 8 MHz. According to&nbsp;<a href="http://infocenter.nordicsemi.com/topic/com.nordic.infocenter.nrf52840.EngB.errata/dita/errata/nRF52840/EngineeringB/latest/anomaly_840_189.html?cp=2_0_1_2_1_23" target="_blank" rel="noopener noreferrer">this</a>, you can only run for up to 16Mhz on rev B. But this errata is fixed on rev C - so it works now also at 32Mhz.</p> <p>&nbsp;</p><div style="clear:both;"></div>