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maximum frequency of STM32F0 @2,5v

Question asked by gfranck on Feb 29, 2016
Latest reply on Mar 2, 2016 by Amel N

What is the maximum frequency of STM32F030F4P6 at 2,5V ?
Does the supply voltage have an impact on choice of capacitor value ?
I'm planning to use 20pf capacitors and 8 mhz crystal 

On the STM32F0 discovery schematics, there is R22 resistor connected to the crystal with a value of 390ohm. Is it required ?