Based on the working characteristic of Schmitt circuits which have two detection thresholds to input signals, this paper proposes that Schmitt circuits have the same sequential characteristic as flip flops which are used as memory units.

• 根据施密特电路对输入信号具有二种检测阈值的工作特点 ,提出了施密特电路与用作存贮元件的触发器之间具有相同的时序特征。