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DS90UB947-Q1: IIC电平配置问题

user5975626
Prodigy 150 points
Part Number: DS90UB947-Q1


你好，如果DS90UB947的VDDIO接1.8V，是否可以通过DS90UB947的I2CSEL引脚悬空来选择DS90UB947的IIC电平为3.3V？还是此时IIC的电平只能是1.8V？