Microcontroller internal Clock frequency tolerances

Question

I am having this microcontroller - S32K142 64 Pin 5V Core voltage

I want to use the FIRC and want to see the frequency tolerance of the FIRC.

Can someone help to find how to find the frequency tolerances of the internal clocks? Like SIRC, FIRC and the clock that can obtained after the PLL?

I couldn't find the frequency tolerances of the internal clocks

Didn't we already go through the tolerances in your previous question, "Bit error rate calculation for LIN protocol", to which you have not commented anything since my last edit? — Justme, Jul 06 '20 at 13:24

score 1 · Accepted Answer · answered Jul 06 '20 at 13:26

1

The tolerances are listed in the datasheet, pages 40 and 41.

answered Jul 06 '20 at 13:26

Justme

Thank you.. Suppose, if the clock is obtained through PLL division? Suppose I derive 8MHz from the 48MHz, then the Tolerance deviation of the frequency will also be the same, right? – Jul 06 '20 at 13:33
1

Yes. The PLL only multiplies the frequency. If the input is 1% lower than it should be, so will the output. – Justme Jul 06 '20 at 13:39
Thank you for the answer. – Jul 06 '20 at 13:40

1 Answers1