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TUSB8040A1: USB Hub基本问题

Part Number: TUSB8040A1
Other Parts Discussed in Thread: TUSB8040, TUSB8042, TUSB8041, , TUSB8041-Q1, TUSB8020B-Q1

我想问一下USB Hub

1)是不是类似于模拟开关,是分时复用的?

2)Hub对Host一端和对Device一端都是同一个Speed, 例如USB3.0 Hub, 两端都是Super Speed?

答案是不是对所有USB Hub都通用,而不仅仅是本问题所选型号?