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USB 2.0 Hi-Speed Hub Controller
Datasheet
Revision 1.0 (3-11-09) 20 SMSC USB251x
DATASHEET
PRTPWR[1] USB Port
Power Enable
12 15 29
PRTPWR[2] 16 19 26
PRTPWR[3] - 18 21 23
PRTPWR[4] - 20 - 27 20
PRTPWR[5] - 30
PRTPWR[6] - 39
PRTPWR[7] - 36
PRTPWR_POL Port Power
Polarity
Strapping
-38-
PRTSWP[1] Port Swap
Strapping
Option
-3751
PRTSWP[2] - 25 49
PRTSWP[3] - 23 47
PRTSWP[4] - 13 33
PRTSWP[5] - 31
PRTSWP[6] - 17
PRTSWP[7] - 15
RBIAS USB
Transceiver
Bias
35 47 63
RESET_N Reset Input 26 34 43
SCL Serial Clock 24 31 41
SDA Serial Data
Signal
22 29 40
SEL48
Select 48 MHz
Clock Input
-40-
SMBCLK System
Management
Bus Clock
24 31 41
SMBDATA Server
Message Block
Data Signal
22 29 40
SUSP_IND Active/Suspend
Status Indicator
28 39 45
TEST Test Pin 11 14 19
USBDM_UP USB Bus Data 30 42 58
USBDP_UP 31 43 59
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