Which type of crystal is best for use with the AVR? A 20pf or a series type? They are often the same price.
What are the advantages and disadvantages of using a ceramic resonator as opposed to a crystal? Resonators tend to be 10-50% cheaper than crystals and include the capacitors, but are they as accurate in regards to frequency? What would be the expected range of frequency variation when using a resonator? Are CRs more temperature sensitive for frequency than crystals?
If using a resistor and capacitor to oscillate the system clock of an AVR, what type of capacitor would be recommended?
I've looked in the data sheets and archives here for insights on these issues but haven't been able to gather much helpful information. Perhaps if there are specific replies to this message it will focus help for AVR users in the future referencing this topic.