https://devzone.nordicsemi.com/f/nordic-q-a/4137/apply-voltage-for-dcc-pinhi, i&#39;m new in nrf module, i use nrf51822, i&#39;m totly confuse what voltage that i should apply on DCC pin? if i want use internal dc/dc than what the voltage and if i use LDO than what should the voltage. and can i supply vdd and DCC same voltage? Thanken-USTelligent Community 13Mon, 20 Oct 2014 07:11:31 GMThttps://devzone.nordicsemi.com/thread/14799?ContentTypeID=1Mon, 20 Oct 2014 07:11:31 GMT137ad170-7792-4731-bb38-c0d22fbe4515:0823afb1-e622-4b3f-af83-2974de06f3f9hiren<p>OK. Great it is so use full for me. Thanks</p> <p>now i again i ask one question is there any way to programme nrf51822 using UART ?</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/14798?ContentTypeID=1Fri, 17 Oct 2014 13:51:24 GMT137ad170-7792-4731-bb38-c0d22fbe4515:32dda35e-bfb0-4912-a304-5401751a6023Vebj&#248;rn<p>DCC is actually the output of the DC/DC converter, so you don&#39;t need to apply any voltage there :) It can be used to supply AVDD for example, through an external LC-filter. All this is pretty well explained in chapter 11 in the Reference Manual. The max ratings can be found in chapter 6 of the Product Specification</p><div style="clear:both;"></div>