topic K60 32.768k crystal in Kinetis Microcontrollers https://community.nxp.com/t5/Kinetis-Microcontrollers/K60-32-768k-crystal/m-p/297324#M12263 <HTML><HEAD></HEAD><BODY><H1 style="font-style: inherit; font-size: 26px; font-family: inherit;"></H1><P class="jive-answer-type jive-answer-type-notanswered font-color-meta" style="margin-top: 5px; font-style: inherit; font-family: inherit; color: #8b8b8b;">32.768k crystal - Level of Drive：0.1uW Typ, 0.5uW Max.</P><P style="font-style: inherit; font-family: inherit;">Add series resistors<SPAN style="font-style: inherit; font-size: 14px; font-family: arial; color: #343434;">?</SPAN><SPAN style="font-style: inherit; font-family: inherit;">How much resistance?</SPAN></P></BODY></HTML> Wed, 14 May 2014 07:58:57 GMT LJF111 2014-05-14T07:58:57Z K60 32.768k crystal https://community.nxp.com/t5/Kinetis-Microcontrollers/K60-32-768k-crystal/m-p/297324#M12263 <HTML><HEAD></HEAD><BODY><H1 style="font-style: inherit; font-size: 26px; font-family: inherit;"></H1><P class="jive-answer-type jive-answer-type-notanswered font-color-meta" style="margin-top: 5px; font-style: inherit; font-family: inherit; color: #8b8b8b;">32.768k crystal - Level of Drive：0.1uW Typ, 0.5uW Max.</P><P style="font-style: inherit; font-family: inherit;">Add series resistors<SPAN style="font-style: inherit; font-size: 14px; font-family: arial; color: #343434;">?</SPAN><SPAN style="font-style: inherit; font-family: inherit;">How much resistance?</SPAN></P></BODY></HTML> Wed, 14 May 2014 07:58:57 GMT https://community.nxp.com/t5/Kinetis-Microcontrollers/K60-32-768k-crystal/m-p/297324#M12263 LJF111 2014-05-14T07:58:57Z Re: K60 32.768k crystal https://community.nxp.com/t5/Kinetis-Microcontrollers/K60-32-768k-crystal/m-p/297325#M12264 <HTML><HEAD></HEAD><BODY><P>Hi Jun</P><P>Normally this value depend on the mode that you want to run , if you want to run in low frequency high gain mode we recommend 200 k, but if you want to run in low frequency low power we do not have any specific value,</P><P><span class="lia-inline-image-display-wrapper" image-alt="pastedImage_0.png"><img src="https://community.nxp.com/t5/image/serverpage/image-id/45835i49D908F3EDFDB251/image-size/large?v=v2&amp;px=999" role="button" title="pastedImage_0.png" alt="pastedImage_0.png" /></span></P><P>I also recomend you the application note <A href="http://www.freescale.com/files/microcontrollers/doc/app_note/AN3208.pdf">AN3208</A><BR />Have a great day,<BR />Vicente</P><P></P><P>-----------------------------------------------------------------------------------------------------------------------<BR />Note: If this post answers your question, please click the Correct Answer button. Thank you!<BR />-----------------------------------------------------------------------------------------------------------------------</P></BODY></HTML> Thu, 14 Aug 2014 21:42:02 GMT https://community.nxp.com/t5/Kinetis-Microcontrollers/K60-32-768k-crystal/m-p/297325#M12264 vicentegomez 2014-08-14T21:42:02Z