数字IC的选择及使用

• 作 者: 瞿贵荣
• 出 处: 家庭电子
• 发表日期: 1997年08期
• 关键词: 数字集成电路 数字电路 NMOS PMOS 空穴导电 电源电压 自动控制装置 电子导电 双极型 微型计算机

在微型计算机、电子仪器、自动控制装置及家用电器中.数字集成电路的使用是非常普遍的。最常用的数字电路有74系列和4000(包括MC14000)系列两大类。74系列属于TTL电路,由于它是利用电子和空穴两种载流子进行导电的,所以也被称为双极型电路;4000系列属于CMOS电路,其中只利用电子导电的称为NMOS电路,只利用空穴导电的称为PMOS电路,如果将NMOS和PMOS复合起来组成互补电路,则称为CMOS电路。

The use of digital integrated circuits is very common in microcomputers, electronic instruments, automatic control devices and household appliances. The most commonly used digital circuits are 74 series and 4000 (including the MC14000) series of two categories. 74 series belong to the TTL circuit, because it is the use of electron and hole two kinds of carriers conducting, it is also known as the bipolar circuit; 4000 series belong to the CMOS circuit, which only uses electronic conduction called the NMOS circuit, Only use hole conduction called PMOS circuit, if the NMOS and PMOS compound to form a complementary circuit, then known as the CMOS circuit.