I actually bought this mic to better annotate my teardowns, but what kind of teardowner would I be if I didn't take it apart first? Enjoy!
Thoughts: I like it. Very pared-down and simple (expected, since it's got such a low price point) but well designed and thought out. KISS!
Datasheets: http://www.hardwaresecrets.com/datash...
http://www.atmel.com/Images/doc5126.pdf