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https://e2e.ti.com/support/interface-group/interface/f/interface-forum/1007539/pca9543a-voltage-levels-on-io-pins
团队、
PCA9543A 是否在 IO 引脚上支持1.8V 电平？ 数据表在这方面有一些矛盾。
谢谢
Viktorija
您好 Viktorija、
根据 IO 引脚、我假设您是指器件的次级通道。 如果 Vcc 为3V 或更低、您可以在次级通道上支持1.8V 电压。
-Bobby
