摘要
介绍了一种使用两片74LS164,仅占用三个I/O口即可实现驱动八位LED的动态显示电路的设计,该方案与当前常用的串行LED译码驱动芯片相比,可大大降低设计成本。
This paper introduces a kind of dynamic display circuit which use two chips of 74LS164,only need three general I/O to drive 8-bit LED.Comparing with using serial coding LED drive chip,this method can greatly reduce the design cost.
出处
《电测与仪表》
北大核心
2003年第7期37-39,共3页
Electrical Measurement & Instrumentation
