chucktodd:
Wow, those HC49's are big. The resonators I use are 3.5 x 1.5 x0.6mm. Those HC49's are 11.5 x 4.7 x 3.5mm, bigger than the 328 TQFP!Chuck.
I use these:
22.1184 mhz, and it runs 100% rock stable. The 1 meg resistor was already there, so I left it, but I would not have added one if it didn't have one already (not needed). Nor are the loading caps.