同样一个逻辑功能可以用不同类型的器件来实现,例如可以用TTL电路来实现,也可以用CMOS电路来实现。又例如TTL的D型触发器和CMOS的D型触发器从逻辑功能的角度来说,可以完全相同,但从电路结构,电路参数和特性上来说却又不尽相同,或者截然不同。一个成功的系统设计既应是逻辑的巧妙组合,也应是电路的协调耦合。如果试图拿着一张逻辑图到处乱套,这是肯定要碰钉子的。本文将向系 The same logic function can be used to achieve different types of devices, for example, TTL circuit can be used to achieve, you can also use CMOS circuits to achieve. Another example TTL D-type flip-flop and CMOS D-type flip-flop from the logic point of view, can be exactly the same, but in terms of circuit structure, circuit parameters and characteristics are not the same, or completely different. A successful system design should be both an ingenious combination of logic and a coordinated coupling of circuits. If you try to mess around with a logic diagram, this is sure to hit the nail. This article will be to the Department