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KL16 low power crystal startup time

Question asked by Chip Weller on Nov 30, 2015
Latest reply on Dec 1, 2015 by Zhe Tian

I am using a MKL16Z256VLH4 with a 32768 Hz crystal running in lower power mode (HGO=0).  The datasheet lists the typical crystal startup time (tsct) as 750 ms, and I do see something like that.


My question is what should I assume for the maximum time. Currently I am using 1 second. The processor is running at 3.0V (+/-4%) and the expected die temperature range is 15C to 45C.