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PCA8565 can't work to 125 ℃

Question asked by shuo liu on Jun 28, 2016
Latest reply on Jul 18, 2016 by shuo liu

     When PCA8565 work at 90~125℃,CPU can't read the true time from PCA8565.But the timer in the PCA8565 is working normally.When the temperature drops below 90℃,PCA8565 return to normal working condition.

        The circuit diagram as follow.

        All chips and devices can work at 125 ℃.What factors will cause this error?


The correct data:

The wrong data: