J-K触发器的 请有关人士帮忙翻译

来源:百度知道 编辑:UC知道 时间:2024/05/13 06:47:17
The J-K Flip-Flop. Another problem with the basic R-S flip-flop is the forbidden state at the input. This can be eliminated by ANDing the inputs with the output of the flip-flop, thus blocking one of the inputs, as shown in Fig.4.23. The added gates here have effect of inhibiting the 1 input to the gate whose output is 1. There-fore, the input which is passed will always change the state of the output. Thus the truth table for the J-K flip-flop is the same as the truth table in Fig.4.19, except that we indicate a change of output state for the hitherto forbidden input state. The J-K Flip-Flop thus gives us, in addition to a latched memory of the input,, the capacity to “toggle” (A Lever-actuated switch, like the ordinary light on-off switch, is called a toggle switch. Thus to toggle means to switch from one state to another) when both inputs are 1.This toggle feature reveals why we must use edge triggering for this flip-flop; for if the clock pulse were extended in time, the state woul

j-K型钾触发器。另一个问题是基本的r - s触发器是禁止国家在投入。这可以消除安定的投入与产出的触发器,从而阻碍之一投入所示fig.4.23 。加上盖茨这里有抑制1输入门的输出是1 。有-走在前列的,投入是通过永远改变状态输出。因此真值表为歼钾触发器是相同的真值表在fig.4.19 ,除了表明我们改变输出状态,为迄今禁止输入状态。 j型钾触发器,从而给我们,此外还有一个锁存记忆投入,有能力的"触发器" (杠杆启动开关,就像普通灯开关,是一个叫钮开关。从而触发方式开关从一个国家向另一个国家)当两个输入都藤肘特征揭示为什么我们必须利用边缘触发此触发器;如果时钟脉冲延长时间,国家将振荡回来提出并最终产出将indeterminent 。肘模式的j钾触发器是有用的柜台和分频器。