TTL兼容端口电路设计

Design of the TTL Compatible Port Circuit

首先给出了电路前后级之间接口需要满足的原则,之后介绍了与TTL兼容电路的输入电平,在给出了CMOS反相器转换电平的定义基础上,详细介绍了三种TTL电路驱动CMOS电路的端口兼容的设计方法,并给出了实际电路设计时应考虑的各种因素。

This paper first introduces the principle of circuit interface,following introduces the input voltage of TTL compatible circuit,based upon the principle of conversion voltage of CMOS inverter,introduces the design means of TTL compatible port-circuit,and show the diversified factor in designing factual circuit.