• 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]1803959ca067672.jpg[/img]
    A: [img=53x22]1803959ca8a4fd8.png[/img],[img=53x22]1803959cb07db81.png[/img],[img=53x22]1803959cb8a8881.png[/img],[img=53x22]1803959cc183c75.png[/img]
    B: [img=53x22]1803959cc9da726.png[/img],[img=53x22]1803959cd2bca98.png[/img],[img=53x22]1803959cdae7f14.png[/img],[img=53x22]1803959ce35f04d.png[/img]
    C: [img=53x22]1803959ca8a4fd8.png[/img],[img=53x22]1803959cb07db81.png[/img],[img=200x22]1803959cfa93857.png[/img]
    D: [img=53x22]1803959ca8a4fd8.png[/img],[img=200x22]1803959d0ac3fdb.png[/img],[img=53x22]1803959d12a7414.png[/img]
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