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K22_120 VLPS power consumption

Question asked by Peter Rush on Apr 12, 2015
Latest reply on Apr 13, 2015 by Kerry Zhou

I am looking at two different members of the K22_120 family, MK22FN512VDC12 and MK22FN1M0VMC12.  As far as I can tell from the datasheets these parts are pretty much identical, except that the latter has 1M of FLASH rather than 512k.  Yet if I look at the VLPS power consumption for the two parts, the first has a typical figure of 8.7uA, but the second has a typical figure of 78uA, almost 10x greater.  I would expect the 1M part to have a slightly higher consumption because of the extra FLASH, but not that much higher.

 

Can anyone explain the reason for the large difference between the two VLPS currents?

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