1.Mode 1 Causes the counter to function as a retriggerable monostable multivibrator (one-shot).
模式1 计数为一个可重新触发的单稳态多谐振荡(单稳态触发)。
2.The examples of analyzing monostable multivibrator and astable multivibrator and Schmitt trigger based on 555 Timer by the method are also introduced.