nRF51822 WLCSP Reference Design No Connection Pins Tied to Groundhttps://devzone.nordicsemi.com/f/nordic-q-a/1640/nrf51822-wlcsp-reference-design-no-connection-pins-tied-to-groundI&#39;m using the reference design for the WLCSP nRF51822 package, and I noticed that there are 2 pins (G3 and G4) that are listed as N.C. (No Connection) in the product specification, but they have been tied to ground in the reference design (see pic). Ien-USTelligent Community 13Sat, 30 Aug 2014 23:59:59 GMTRE: nRF51822 WLCSP Reference Design No Connection Pins Tied to Groundhttps://devzone.nordicsemi.com/thread/7218?ContentTypeID=1Sat, 30 Aug 2014 23:59:59 GMT137ad170-7792-4731-bb38-c0d22fbe4515:b1c60cbd-3694-4cda-86dc-efeca620a77aaaronxu<p>Means may be used for PCB trace routing?</p><div style="clear:both;"></div>RE: nRF51822 WLCSP Reference Design No Connection Pins Tied to Groundhttps://devzone.nordicsemi.com/thread/7217?ContentTypeID=1Tue, 18 Feb 2014 13:33:47 GMT137ad170-7792-4731-bb38-c0d22fbe4515:a95384c4-aaa3-4443-a97c-8daa5d1a1f4dJoel<p>I have received an answer on this specific question before for the WLCSP nRF51822.</p> <p>NC pins must be soldered on to the PCB for mechanical reasons.</p> <p>NC pins can be soldered to floating pads, or ground pads - it makes no difference to the device.</p><div style="clear:both;"></div>