https://devzone.nordicsemi.com/f/nordic-q-a/44377/nrf52840-vbus-d-d--lines-connected-to-gnd-allowedHi, In a design which should be compatible with the NRF52832 we want to use the NRF52840. As the NRF52832 doesn&#39;t have USB, this would mean that the VBUS and data lines on the NRF52840 are connected to GND. Is this allowed? And does this lead to anyen-USTelligent Community 13Mon, 04 Mar 2019 15:31:43 GMThttps://devzone.nordicsemi.com/thread/174066?ContentTypeID=1Mon, 04 Mar 2019 15:31:43 GMT137ad170-7792-4731-bb38-c0d22fbe4515:e5a9b3a0-ec39-4964-8e75-0d16f2b8b9faAndreas<p>Hi,</p> <p>&nbsp;</p> <p>Grounding VBUS is recommended per our <a href="https://www.nordicsemi.com/DocLib/Content/Product_Spec/nRF52840/latest/ref_circuitry?1361#unique_1067561942">reference design</a> when the USB module is not in use. D+ and D- can be left floating or grounded, you should not expect any increase in power consumption either way.</p> <p>&nbsp;</p> <p>Best regards,</p> <p>Andreas</p><div style="clear:both;"></div>