I need to put a real-time clock on a board. I haven't needed to know anything about the market for this for years, and I see that I'm way out of date.
I just need basic clock functionality that I can read and set under software control, I don't need any bells or whistles, and I don't care much about the format.
What I do care about is something that I can put on the board easily and will work reliably.
I could put a chip, caps, crystal and battery on the board. I see the24-DIP sized chips that come with the flip-top, though, and they look like I could short-cut a number of production issues by using them.
Does anyone have any experience with these things? Are the tops interchangeable, or do I have to use a TI top with a TI bottom, ditto for NXP, etc.?
Any other positive or negative relevant experience anyone wants to share?