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本电路适用于μP系统中人工中断开关的去颤。利用对按键开关(S_1)的NC触点去颤的方法,此电路确保每次开关S_1按下时,V_(OUT)仅产生一个负脉冲(对于高有效中断,可使用触发器的Q输出)。S_1由弹簧使其保持在图示的NC位置,这使复位输入(脚1)保持为低,因而使V_(OUT)为高。当压下按键时,S_1立即开关到NO位置并且使触发器的CLK输入为低(此时V_(OUT)不变)。当你的手指松开按键时,NO闭合中断,获得从低到高过渡成为数据输入(D=1)的钟信号,
The circuit for μP system manual interrupt switch to the defibrillation. Using a method of defibrillating the NC contacts of the pushbutton switch (S_1), this circuit ensures that V OUT produces only a negative pulse each time switch S_1 is pressed (for highly active interrupts, the Q output of the flip-flop can be used) . S_1 is held in the NC position shown by the spring, which keeps the reset input (pin 1) low and therefore V OUT (OUT) high. When the button is pressed, S_1 immediately switches to the NO position and the flip-flop’s CLK input is low (V_ (OUT) is unchanged). When your finger releases the button, NO closes and interrupts, obtaining the clock signal from low to high transitions to data input (D = 1)