问题详情

用三线-八线译码器74LS138和辅助门电路实现逻辑函数Y=,应( )。


A、用与非门,Y=<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/1526005497479cc6ffbf4714a45dfbdc08d2a21767edfimage5.png">

B、用与门,Y=<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/1526005497668fb867627c5d945b3b0e97b2e857369a4image6.png">

C、用或门,Y=<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/1526005497843c5fa5dd23ce943f0b88349d39606f305image7.png">

D、用或门,Y=

时间:2021-07-17 23:24 关键词: 电力系统自动化技术 高起专 数字电子技术 2020年第二学期补考

答案解析

AB