数电的应用

目录

综述 ........................................................................................................................... 1

1方案比较与选定 .................................................................................................... 2

2方案设计与分析 .................................................................................................... 2

2.1逻辑抽象 ............................................................................................................. 2

2.2单元模块设计 ..................................................................................................... 3

2.2.1可供选择商品的指示灯模块 ............................................................... 3

2.2.2商品输出模块 ..................................................................................... 5

2.2.3找零模块 ............................................................................................ 6

3整体电路及仿真 .................................................................................................... 8

3.1电路原理 ............................................................................................................ 8

3.2电路仿真 ............................................................................................................ 9

3.2.1投一元买矿泉水 ................................................................................. 9

3.2.2投一块五买饮料 ............................................................................... 10

3.2.3投两元买饮料并找零 ........................................................................ 11

心得体会 ................................................................................................................. 12

参考文献 ................................................................................................................. 13