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如题
输入管脚不要悬空, 最好上拉, 减少功耗, 具体可以参考下面的应用报告第8.2, 8.3章节.http://www.ti.com/lit/an/spraa89a/spraa89a.pdf
谢谢。
另外请教一下，悬空或上下拉的区别就在于系统功耗，跟系统稳定性没多大关系，因为芯片内部已经设计了小的上，下拉电阻，是不是？
你的理解正确
