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Battery voltage for RTCC

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SeeCwriter
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2018/10/04 13:02:37 (permalink)
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Battery voltage for RTCC

For the 18F87K22, there doesn't seem to be a battery input to keep the RTCC running. If true, how do others maintain their time-of-day between power cycles?
#1

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    jack@kksound
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    Re: Battery voltage for RTCC 2018/10/04 13:12:09 (permalink)
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    External power management circuitry.
    #2
    katela
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    Re: Battery voltage for RTCC 2018/10/04 13:48:43 (permalink)
    +1 (1)
    Use an external RTCC

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    SeeCwriter
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    Re: Battery voltage for RTCC 2018/10/04 13:54:50 (permalink)
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    I was afraid of that. It's easier to just drop an external RTC on the board with a diode.
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