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您好,
是的,必须使用2个P82B715,您不能将P82B715的LX/Ly引脚连接到任何I2C设备的标准I2C引脚,这将无法正常工作,因为P82B715的LX/Ly引脚的上拉是强上拉,标准I2C引脚没有足够的驱动强度来实现这一功能。