摘要
TM1620是一款LED数码管驱动专用芯片,该芯片所实现的多位数码管驱动方案与传统方案相比,具有占用单片机IO口少、电路简洁、辉度多级可调等优点。现阶段,介绍TM1620的文献还不多,为了便于设计者更好地开展对该芯片的学习和应用,本文较为详细地说明了这款芯片驱动共阴极数码管的电路方案、芯片指令和程序写法。
TM1620 is a special chip for driving LED digital tube.Compared with the traditional scheme,the scheme of driving digital tube realized by TM1620 has many advantages,such as less IO port,simple circuit and multi-level adjustable brightness.At this stage,there are few papers about TM1620.In order to facilitate designers to study and apply TM1620 better,this paper describes in detail the circuit scheme,instructions and function code of driving common cathode digital tube by TM1620.
作者
王深
WANG Shen(Fujian Polytechnic School,Fuzhou 350002,China)
出处
《现代信息科技》
2019年第23期42-43,共2页
Modern Information Technology
