• 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5421BCD码,则74283的加数B3B2B1B0对应的输入为 。[img=347x318]1802d49bf2980cc.jpg[/img]
    A: [img=53x22]1802d49bfa97def.png[/img],[img=53x22]1802d49c0255212.png[/img],[img=53x22]1802d49c0a8f122.png[/img],[img=53x22]1802d49c128e258.png[/img]
    B: [img=53x22]1802d49c1bc011c.png[/img],[img=53x22]1802d49c241fa8a.png[/img],[img=53x22]1802d49c2bbd6a0.png[/img],[img=53x22]1802d49c34051f0.png[/img]
    C: [img=53x22]1802d49bfa97def.png[/img],[img=53x22]1802d49c0255212.png[/img],[img=200x22]1802d49c50be055.png[/img]
    D: [img=53x22]1802d49bfa97def.png[/img],[img=200x22]1802d49c610eb1f.png[/img],[img=53x22]1802d49c698eb6b.png[/img]
  • 举一反三