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关于TL16CP754C的问题



我之前测试单个芯片没有问题,但是后来单个单片机拖两个芯片,A0-A2,D0-D7共用,CSA-CSD分别控制,发现两片16CP754居然打架,而且进一步测试发现单独使用一片的时候即使CS脚没有拉低的,D0-D7也会输出,难道这个芯片不能共用总线吗?