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PIC18F series quartz 40 MHz capacitance value

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recommended capacitance 40mhz

Hello there,

I can't find the capacitance value to use for a PIC18F MCU clocked at 40MHz.
I see that from 1MHz up to 25MHz Microchip is proposing 15pF. But no mention for 40MHz.

Anyone can help?
 

pic18f1320 crystal selection

Usually the 40MHz clock for 18F series PIC comes from a 10MHz crystal and activating the internal PLL that multiplies the 10MHz by 4. Check the datasheet to be sure.
 

Yes, and correct capacitance would be commonly used 22 pF.
 

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