ColdFire/68K Microcontrollers and Processorsのトピックmcf544xx rtc battery supply https://community.nxp.com/t5/ColdFire-68K-Microcontrollers/mcf544xx-rtc-battery-supply/m-p/173884#M6644 <HTML><HEAD></HEAD><BODY><P>hello,</P><P>is it possible to keep the rtc of a mcf5445x alive by powering it from a battery? what is the supply current on pin VDD_RTC? may VDD_RTC be 1.5 Volt when the other supplies are 0V?</P></BODY></HTML> Tue, 21 Apr 2009 15:26:30 GMT wr 2009-04-21T15:26:30Z mcf544xx rtc battery supply https://community.nxp.com/t5/ColdFire-68K-Microcontrollers/mcf544xx-rtc-battery-supply/m-p/173884#M6644 <HTML><HEAD></HEAD><BODY><P>hello,</P><P>is it possible to keep the rtc of a mcf5445x alive by powering it from a battery? what is the supply current on pin VDD_RTC? may VDD_RTC be 1.5 Volt when the other supplies are 0V?</P></BODY></HTML> Tue, 21 Apr 2009 15:26:30 GMT https://community.nxp.com/t5/ColdFire-68K-Microcontrollers/mcf544xx-rtc-battery-supply/m-p/173884#M6644 wr 2009-04-21T15:26:30Z Re: mcf544xx rtc battery supply https://community.nxp.com/t5/ColdFire-68K-Microcontrollers/mcf544xx-rtc-battery-supply/m-p/173885#M6645 <HTML><HEAD></HEAD><BODY><P>Hello,</P><P>&nbsp;</P><P>Does anyone have any comments on this thread?</P><P>From the manual review, I think, RTC in MCF5445x cannot be run by powering it from a battery. Please confirm it.</P><P>&nbsp;</P><P>Thanks,</P><P>Wook.</P></BODY></HTML> Fri, 20 Aug 2010 09:10:16 GMT https://community.nxp.com/t5/ColdFire-68K-Microcontrollers/mcf544xx-rtc-battery-supply/m-p/173885#M6645 whkim 2010-08-20T09:10:16Z Re: mcf544xx rtc battery supply https://community.nxp.com/t5/ColdFire-68K-Microcontrollers/mcf544xx-rtc-battery-supply/m-p/173886#M6646 <HTML><HEAD></HEAD><BODY><P>Same question here.</P></BODY></HTML> Mon, 09 May 2011 22:06:09 GMT https://community.nxp.com/t5/ColdFire-68K-Microcontrollers/mcf544xx-rtc-battery-supply/m-p/173886#M6646 Kafre 2011-05-09T22:06:09Z