https://devzone.nordicsemi.com/f/nordic-q-a/7807/nrf51-nrf52-pin-compatibility-for-wlcsp-packageHi, The datasheet for nRF52 has pin assignments for QFN-48 only at present. I&#39;m using WLCSP package for the nRF51 and would like to know if there is any pin-to-pin compatibility between the nRf51 and 52 for this package. Thanks. DJen-USTelligent Community 13Wed, 24 Jun 2015 21:36:34 GMThttps://devzone.nordicsemi.com/thread/27802?ContentTypeID=1Wed, 24 Jun 2015 21:36:34 GMT137ad170-7792-4731-bb38-c0d22fbe4515:5dab5ba8-e446-4574-b044-abfefd4fe9ceDJ<p>Hi Øyvind,</p> <p>Thank you for the response... but it would have been nice if there is some compatibility for migration.</p> <p>Cheers, DJ</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/27801?ContentTypeID=1Wed, 24 Jun 2015 09:36:31 GMT137ad170-7792-4731-bb38-c0d22fbe4515:a3afa830-4b4c-4c25-b709-e240c727c802&#216;yvind Karlsen<p>Hi,</p> <p>Neither the WLCSP nor the QFN-48 packages will be pin compatible due to changes in technology, e.g. there is only one antenna output due to internal balun.</p> <p>Best regards,</p> <p>Øyvind</p><div style="clear:both;"></div>