https://devzone.nordicsemi.com/f/nordic-q-a/258/nrf51422-external-clocksWe plan on using the external 16 MHz and 32 KHz oscillator inputs to reduce BOM costs since our host micro uses a 16 MHz and 32kHz crystal and it can generate outputs. If we want to minimize power consumed by the nRF51422 should we put in the provisionen-USTelligent Community 13Tue, 10 Sep 2013 09:01:20 GMThttps://devzone.nordicsemi.com/thread/1372?ContentTypeID=1Tue, 10 Sep 2013 09:01:20 GMT137ad170-7792-4731-bb38-c0d22fbe4515:0dbf59bb-f173-4fcb-bd57-f0cb4f4d9798Hung Bui<p>When the HFCLK clock is turned off (using HFCLKSTOP task), the XC1 (or XL1) will remain in high impedance. You don&#39;t need to gate out externally.</p><div style="clear:both;"></div>