Hi Sir,
可以帮我看一下哪个方块图比较好? 或是有更好的建议, 谢谢.
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你好,
第一个图比较激进,即使MCU的工作电压范围比较宽,也不一定能保证接口通信的逻辑电平完全可靠。
建议用保守的第二种方案。