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您好,
最大的差异将是NE555的温度依赖性以及两个设备之间trigger 和 threshold 的优先级。LM555在threshold 引脚上具有优先级,NE555在trigger 引脚上具有优先级。
区别具体查看下面链接:
https://www.apogeeweb.net/circuitry/ne555-vs-lm555-timer-ics-what-is-the-difference.html