My understanding of how this works is quite poor, I've tried reading many sources but just got even more confused by the terms crystals, crystal resonators, ceramic resonators, oscillators, crystal oscillators.
What I know is that when you have a simple 2 pin crystal you add 2 caps to it so that it resonates properly. And the AVR chip I am connecting it too (Atmega328p) has some other internal circuitry for it to work.
Do I still need the external capacitors or not? I originally thought I would but looking at the specs of the parts they all have a label "capacitance". Does that imply it has caps inside? Or is that recommended value for my caps? Or is that some other capacitance?
Sorry if this doesn't make sense I am just really confused. Thanks in advance!
Edit to include specifics: I have these crystals https://lcsc.com/product-detail/SMD-Crystal-Resonators_Seiko-Epson-X1E000021011900_C89371.html But it seems they are quite standard so here is one with English datasheet: https://www.mouser.co.uk/ProductDetail/ECS/ECS-160-12-37B-CTN-TR?qs=sGAEpiMZZMukHu%252BjC5l7Yb4vS8HZNl%252BL%2F78jMNI6Q2E%3D