51单片机引脚ALE的具体作用?怎么控制地址锁存器的?比如单片机外接地址锁存器74HC373,然后P0口与锁存器相接.ALE脚是接LE脚没错吧?具体怎么控制ALE的电平来实现地址锁存和地址变化的呢?
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/18 10:46:43
![51单片机引脚ALE的具体作用?怎么控制地址锁存器的?比如单片机外接地址锁存器74HC373,然后P0口与锁存器相接.ALE脚是接LE脚没错吧?具体怎么控制ALE的电平来实现地址锁存和地址变化的呢?](/uploads/image/z/14181740-44-0.jpg?t=51%E5%8D%95%E7%89%87%E6%9C%BA%E5%BC%95%E8%84%9AALE%E7%9A%84%E5%85%B7%E4%BD%93%E4%BD%9C%E7%94%A8%3F%E6%80%8E%E4%B9%88%E6%8E%A7%E5%88%B6%E5%9C%B0%E5%9D%80%E9%94%81%E5%AD%98%E5%99%A8%E7%9A%84%3F%E6%AF%94%E5%A6%82%E5%8D%95%E7%89%87%E6%9C%BA%E5%A4%96%E6%8E%A5%E5%9C%B0%E5%9D%80%E9%94%81%E5%AD%98%E5%99%A874HC373%2C%E7%84%B6%E5%90%8EP0%E5%8F%A3%E4%B8%8E%E9%94%81%E5%AD%98%E5%99%A8%E7%9B%B8%E6%8E%A5.ALE%E8%84%9A%E6%98%AF%E6%8E%A5LE%E8%84%9A%E6%B2%A1%E9%94%99%E5%90%A7%3F%E5%85%B7%E4%BD%93%E6%80%8E%E4%B9%88%E6%8E%A7%E5%88%B6ALE%E7%9A%84%E7%94%B5%E5%B9%B3%E6%9D%A5%E5%AE%9E%E7%8E%B0%E5%9C%B0%E5%9D%80%E9%94%81%E5%AD%98%E5%92%8C%E5%9C%B0%E5%9D%80%E5%8F%98%E5%8C%96%E7%9A%84%E5%91%A2%3F)
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