c51中P3是什么意思
时间: 2023-09-15 20:19:56 浏览: 65
在C51单片机中,P3是MCS-51系列单片机的一个并行口。并行口用于连接外部设备,可以用来输入和输出数据。在C51中,P3口有8个引脚,可以用来扩展系统的功能,实现与外设的通信和数据交换。<span class="em">1</span><span class="em">2</span>
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