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我现在要做稳压源，但是用430单片机采样时，端口烧坏了，怎么解决这个问题，贵公司有什么性价比合适的芯片可以选择吗?
如果采样电压超过了单片机的极限工作电压范围，那不管哪家的单片机都有可能烧坏的吧
应该处理好采样分压电路，或者加适当的端口保护措施，比如电压抑制管
