Wolfgang Roell

mcf544xx rtc battery supply

Discussion created by Wolfgang Roell on Apr 21, 2009
Latest reply on May 9, 2011 by Guillermo Sanchez

hello,

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?

Outcomes