CD4967BM芯片手册上的真值表为8421编码,实际芯片测试真值表和PDF文档不符(选通8到15通道时逻辑正好和PDF真值表相反),目前找不到原因。
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CD4967BM芯片手册上的真值表为8421编码,实际芯片测试真值表和PDF文档不符(选通8到15通道时逻辑正好和PDF真值表相反),目前找不到原因。
如果是CD4067的话,真值表8421编码是按照DCBA顺序的。
你目前测试8~15通道相反?那0~7通道正常?
按照8421编码顺序,真值表应该是没问题的,你看下是不是把CD4067引脚排列跟通道定义数弄反了,因为pin23是channle 8. Pin16反而是channel 15.