【 nuvoton MCU FAQ #6】What series in the NuMicro™ family support the RTC (Real Time Clock) controller? Does it need to us

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ponpon
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Joined: 20 Mar 2017, 10:43

12 Jul 2018, 15:23

http://www.nuvoton.com/hq/support/faq/5 ... _locale=en

Q: What series in the NuMicro™ family support the RTC (Real Time Clock) controller? Does it need to use the independent power to work?

A:The NUC100, NUC200, Nano100 and NUC442/NUC472 Series support the RTC controller, but other series do not. The power of RTC controller shares with the power of whole chip for the most chips in NuMicro™ family. Once a chip is powered off, the RTC will work incorrectly when the chip is powered on again.
Nevertheless, the NUC200, M451, NUC505 and NUC442/NUC472 Series have the VBAT pin for supplying the power to RTC to keep it working when the chip is powered off.

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