• 2022-07-28
    74LS283是4位二进制加法器,输入信号连接如图所示[img=395x184]18034b35fecdc89.jpg[/img]‍
    A: 则输出端S3S2S1S0 =0000,进位输出端CO =1
    B: 则输出端S3S2S1S0 =0010,进位输出端CO =1
    C: 则输出端S3S2S1S0 =1000,进位输出端CO =0
    D: 则输出端S3S2S1S0 =1111,进位输出端CO =0