1. Readers Suitable For This Article First of all, this article is suitable for those rookie-level electronic enthusiasts , those who want to use their soldering iron to solder some gadgets or buy some electronic modules to realize their interactive creativity. This article is not suitable for professional-level readers. In order to make it understandable for enthusiasts, it is inevitable to adjust some contents that do not affect the principles, so don't be so serious if you see some "mistakes". In addition, the vast majority of Datasheets are in English, so this also requires readers to have a certain level of English reading. Finally, a complete understanding of a Datasheet is actually a fairly superb skill. This requires not only deep knowledge of electronics, IC manufacturing technology, circuit design, but also a variety of professional knowledge. Here, the author can only make a rough outline introduction, at least let the reader have a basic concept in future appl...