The resonators sound like a good option, I don't need a great level of accuracy,
QuoteThe resonators sound like a good option, I don't need a great level of accuracy,Let me flip that coin for you. If you are OK with the (in)accuracy of a resonator, you are going to be more than OK with the (in)accuracy caused by no load capacitance or out-of-spec load capacitance. A crystal without no capacitance will beat out a resonator and provides you the option to obtain accurate timing in the future if you decide to solder in the capacitor(s).With that, it is very difficult, in my view, to justify a resonator over a crystal, and that's why you rarely see them used in well designed products.
Thanks for the info Jack! It's one thing answering a question for someone but telling them how to answer it themselves is great one thing I'm not sure about is how you calculate the 'stray resistance capacitance'?
As a rule of thumb, Cstray may be assumed to equal 5.0 pF.
There is also the pin capacitance.
I use 7pf as an estimate.
For pin alone.Those guys didn't just pick 6pf/12pf load capacitance for no reason.