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我想问下,外部时钟和内部时钟有什么区别?
基于 PLL 的时钟模块提供几种运行模式: 应用INTOSC1、 晶振/谐振器运行和 外部时钟源运行区别是啥,直接都用内部时钟INTOSC1简单直接,为何还要用外部时钟?
内部时钟精度比较低
您好!
外部时钟源的精度要比内部晶振的精度高。简单的应用不需要接外部晶振。