I feel a bit like I'm losing it... I can't seem to find a (modern) i2c counter chip. Something that will take random events, sum them up, and let me poll from a uC a couple times a second. Events can be minutes apart or in the 100khz range.
I'm trying to design a modular board that will interface with the main uC. This modular board is fairly simple but the variants on the end application can make it quite different.
I understand this tends to be done directly on a uC but I'm looking for something that lends itself to production (small-medium scale). I'm trying to avoid extra programming steps (just for a counter) on our production. Oh, and also low power ;P
I've thought about misusing a RTC chip but that doesn't seem sound for production and I really don't need a xtal front end.