触发器在数字系统中使用得最多的器件除了上讲介绍过的逻辑门电路之外,就是现在我们将要介绍的触发器了。触发器是一种具有高(H)和低(L)两种输出稳定状态的器件,当输入激励未改变之前输出一直保持原来状态。一支普遍的照明灯开关就是一个机械式触发器,它有导通和截止两个状态和一个可以改变输出状态的输入端。触发器不同于逻辑门电路,它是一种 Flip-Flops The most-used device in a digital system is the flip-flop we are going to introduce now, except for the logic gates described above. A flip-flop is a device that has two output stable states, high (H) and low (L), that remain in their original state until the input stimulus has not changed. A common light switch is a mechanical trigger that has two on and off states and an input that changes the state of the output. Flip-flop is different from the logic gate circuit, it is a kind