I've recently been playing with this Strikepack (which, by the way, is a neat product), and I decided to open it up and see what makes it tick.
Datasheets:
http://www.advanced-monolithic.com/pd...
http://www.st.com/content/ccc/resourc...
https://www.cmedia.com.tw/products/US...
https://cdn-shop.adafruit.com/product...