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https://e2e.ti.com/support/interface-group/interface/f/interface-forum/1095690/tusb8020b-pin-treatment-of-usb3-super-speed-when-not-using-usb-super-speed
您好，
如果用户未在TUSB8020B上使用USB3超高速，"相关引脚"是否打开？ 例如USB_SSTXP/M_UP/DNx，USB_SSRXP/M_UP/DNx。 请告诉我们。
谢谢，此致， Hattori先生。
是的，如果不使用，则保持未连接。
此致，
JMMN
