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TUSB4020BI: HUB配置问题

Part Number: TUSB4020BI

1,如图中的配置,请问是否合适,(无I2C接口):2.图中的配置OVERCUR悬空,是否会引起HUB数据连接问题;3.4 5 35 36管脚的定义如何理解呢。请帮忙说明,谢谢。