"0 Hz" means that the MCU is specified down to DC for its clock. Now, a DC "clock" might not be useful, but you might want to use an external clock at a much lower frequency than, say 32 kHz. Maybe for some applications something as slow as 10 to 100 Hz might have a use. You can also clock through a program at a very slow pace.
It implies that the clock signal can be stopped without loosing operations. Older processors had a minimum clock frequency. I have never tried it but you might be able to step a processor through operations at a manual clock speed if it says that it goes own to DC.Can anyone please tell what does DC in oscillator specification of a microcontroller means ?
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by Aaron Carman
by Aaron Carman