• 2022-06-03
    用集成四位全加器74283和组合逻辑电路设计的代码转换电路如图所示。设电路输入DCBA为8421BCD码,若要电路输出S3S2S1S0的编码为2421BCD码,则74283的加数B3B2B1B0对应的输入为 。[img=347x318]18038b38f2d26e5.jpg[/img]
    A: [img=53x22]18038b38fb34968.png[/img],[img=53x22]18038b3903f2d12.png[/img],[img=53x22]18038b390cd898b.png[/img],[img=53x22]18038b391547143.png[/img]
    B: [img=53x22]18038b391e36012.png[/img],[img=53x22]18038b3926a9847.png[/img],[img=53x22]18038b392f244f0.png[/img],[img=53x22]18038b3937d5ae9.png[/img]
    C: [img=53x22]18038b38fb34968.png[/img],[img=53x22]18038b3903f2d12.png[/img],[img=200x22]18038b39520a49f.png[/img]
    D: [img=53x22]18038b38fb34968.png[/img],[img=200x22]18038b39626c576.png[/img],[img=53x22]18038b396abbc61.png[/img]
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