https://devzone.nordicsemi.com/f/nordic-q-a/91669/nrf52833-cjaa-r-vs-nrf52833-cjaa-b-rHi Sir, We are the first time to use Nordic BT MCU for our product, we have a trouble to select the MCU between nRF52833-CJAA-R vs nRF52833-CJAA- B -R. Sales told us there is no different but we found some different on the spec. What is the differenten-USTelligent Community 13Tue, 06 Sep 2022 11:11:41 GMThttps://devzone.nordicsemi.com/thread/384767?ContentTypeID=1Tue, 06 Sep 2022 11:11:41 GMT137ad170-7792-4731-bb38-c0d22fbe4515:b3ab13de-e130-4cad-a4a5-679838793698Kenneth<p>The changes between revision 1 and revision 2 are described here:<br /><a href="https://infocenter.nordicsemi.com/pdf/in_149_v1.1.pdf">https://infocenter.nordicsemi.com/pdf/in_149_v1.1.pdf</a></p> <p>For new designs we do recommend revision 2 due to the changes described in the above document.</p> <p>Also see compatibility matrix for information to find the build code, errata and product specification you should refer to depending on revision used:<br /><a href="https://infocenter.nordicsemi.com/topic/comp_matrix_nrf52833/COMP/nrf52833/nRF52833_ic_revision_overview.html">https://infocenter.nordicsemi.com/topic/comp_matrix_nrf52833/COMP/nrf52833/nRF52833_ic_revision_overview.html</a>&nbsp;<br /><a href="https://infocenter.nordicsemi.com/topic/comp_matrix_nrf52833/COMP/nrf52833/nRF52833_doc_ref_design_files_overview.html">https://infocenter.nordicsemi.com/topic/comp_matrix_nrf52833/COMP/nrf52833/nRF52833_doc_ref_design_files_overview.html</a>&nbsp;</p> <p>Best regards,<br />Kenneth</p><div style="clear:both;"></div>