K22: What is the maximum extal0 speed for BLPE?

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K22: What is the maximum extal0 speed for BLPE?

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noisternig
Contributor II

Hello,

I'd like to know what the maximum external clock speed for the BLPE configuration is. According to the datasheet, I think it's 50MHz, but a colleague says its 120MHz.

Because of this he created a board with an 120MHz oscillator. It works, but I'm not sure if this is correct usage.

The controller is a MK22FN1M0VLQ12.

Br,

Wolfgang Noisternig

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Stano
NXP Employee
NXP Employee

Hello Wolfgang,

as you can see in the reference manual section 25.4.4, this working mode is allowed. It is possible to run it at 120MHz from the external oscillator.

Best Regards,

Stano.

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noisternig
Contributor II

Hi,

thanks for your reply.

Then I've overseen that section and my colleague didn't remember where he has found that information :-)

Best regards,

Wolfgang

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