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USB 2.0 Hi-Speed Hub Controller
Datasheet
SMSC USB251x 21 Revision 1.0 (3-11-09)
DATASHEET
USBDM_DN[1] Hi-Speed USB
Data
1
USBDM_DN[2] 3
USBDM_DN[3] - 6
USBDM_DN[4] - 8 - 8
USBDM_DN[5] - 11
USBDM_DN[6] - 53
USBDM_DN[7] - 55
USBDP_DN[1] 2
USBDP_DN[2] 4
USBDP_DN[3] - 7
USBDP_DN[4] - 9 - 9
USBDP_DN[5] - 12
USBDP_DN[6] - 54
USBDP_DN[7] - 56
VBUS_DET Upstream
VBUS Power
Detection
27 35 44
VDD33 3.3 V Power 5
VDD33 10
VDD33 15 18 24
VDD33 23 30 46
VDD33 29 41 52
VDD33 36 48 57
VDD33 - 64
XTALIN Crystal Input 33 45 61
XTALOUT Crystal Output 32 44 60
Table 5.1 Pin List in Alphabetical Order (continued)
SYMBOL NAME
PIN NUMBERS
36 QFN 48QFN 64 QFN
USB2512
USB2512i
USB2512A
USB2512Ai
USB2512B
USB2512Bi
USB2513
USB2513i
USB2513B
USB2513Bi
USB2514
USB2514i
USB2514B
USB2514Bi
USB2513
USB2514
USB2517
USB2517i