https://devzone.nordicsemi.com/f/nordic-q-a/67053/can-i-route-gnd-through-unused-pinsI&#39;m using an ISP1807 at 1.8v in a very space constrained and power constrained device. Is it ok to connect unused pins to GND to make routing easier? Pins 3, 5, 8, 10, 12, 19, 27, 29 are otherwise unused. Does this seem reasonable?en-USTelligent Community 13Mon, 19 Oct 2020 07:32:10 GMThttps://devzone.nordicsemi.com/thread/275494?ContentTypeID=1Mon, 19 Oct 2020 07:32:10 GMT137ad170-7792-4731-bb38-c0d22fbe4515:c1262578-ce2e-4d0e-8be9-f28aef8b8642Jason<p>Great, thank you. I&nbsp;redid the board with GND top and bottom and added vias where I could.&nbsp;</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/274689?ContentTypeID=1Tue, 13 Oct 2020 13:54:07 GMT137ad170-7792-4731-bb38-c0d22fbe4515:bf277186-e746-415f-aa11-ece7d4ef4366Andreas<p>Hi,</p> <p>&nbsp;</p> <p>Well, yes, but as you might expect if you use those pins for anything, intentionally or unintentionally, they will be connected to ground.</p> <p>&nbsp;</p> <p>Just a concern about your design though, if this is all the ground you have it will not be enough. You need to add pour in the top and bottom layers, and tie it together with plenty of vias.</p> <p>&nbsp;</p> <p>Best regards,</p> <p>Andreas</p><div style="clear:both;"></div>