FE1.1S USB2.0 FE1.1S USB2.0HUB FE1.1S 接口IC FE1.1S(FE1.1S) FE1.1S(USB 2.0) FE1.1s(USB2.0 HUB) FE1.1S/FE1.1 FE1.1S-B FE1.1S-BQFN24 FE1.1S-BQFN24B