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https://e2e.ti.com/support/interface-group/interface/f/interface-forum/1335014/pca9545a-pca9545a-application-question
大家好、
您能帮助确认 PCA9545A 是否适用于以下用例吗？
主侧上拉至3.3V、从侧上拉至1.0V。
这将不起作用、因为 VCC 必须接近于最低电压。
TCA9545A 将在2.0V 或更低的 VCC 电压下工作。
