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Powering non-used VDDRTC and VDDFLASH when VDDEXT is out of their respective specifications

Question asked by yurchenko on Sep 25, 2009
Latest reply on Jul 25, 2011 by JoeT

Hello,

 

ADSP-BF51x datasheet states on page 23 that when not used VDDRTC and VDDFLASH should be powered from VDDEXT. But what if VDDEXT is out of specifications for those domains? Say VDDEXT is 3.3V while VDDFLASH maximum is 1.9V or 1.8V while VDDRTC minimum is 2.25V?

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