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K60 RTC Vbat supply

Question asked by Marcos Marcoso on Feb 20, 2013
Latest reply on Feb 22, 2013 by Eduardo Montanez

Hello,

 

we are using kinetis K60 (MK60DN512VLQ10). And we would like to use now an external battery to supply the RTC.

As we are working with VDD=1.8V, can the RTC work directly from a 3V battery?

In the datasheet K60P144M100SF2V2, I see that VBAT operating requirements are 1.71 to 3.6V, but I don't see any restriction respect VDD, is there any?

 

 

Thank you

best regards

 

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