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如何判断共阴共阳数码管
更新时间: 2020-09-16 00:00:00  

1、共阳极数码管是指八段数码管的八段发光二极管的阳极或称正极都连在一起,而阴极对应的各段可分别控制,共阳级输入低电平有效;

2、共阴极数码管是指八段数码管的八段发光二极管的阴极或称负极都连在一起,而阳极对应的各段分别控制,共阴级输入高电平有效。

关键词: 如何 判断 数码

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