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https://e2e.ti.com/support/interface-group/interface/f/interface-forum/778384/pca9534a-about-power-down
大家好、Masazumi San、
根据数据表规格、我们的 SDA、SCL 和 P I/O 线路可耐受5V 电压。 在这些条件下、您也不应受到反向偏置的影响。 希望这对您有所帮助。
