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USB 2.0 Hi-Speed Hub Controller
Datasheet
SMSC USB251x 19 Revision 1.0 (3-11-09)
DATASHEET
NC No Connect 6 - 8 11 -
NC 7 - 9 -
NC 18 - 11 -
NC 19 - 12 -
NC 8 - 13 -
NC 9 - 27 -
NC 20 - 28 -
NC 21 -
NON_REM[0] Non-
Removable
Port Strap
Option
28 39 45
NON_REM[1] 22 29 40
OCS_N[1] Over-Current
Sense
13 16 28
OCS_N[2] 17 20 27
OCS_N[3] - 19 26 22
OCS_N[4] - 21 - 28 21
OCS_N[5] - 35
OCS_N[6] - 38
OCS_N[7] - 37
PLLFILT PLL Regulator
Filter Capacitor
34 46 62
PRT_DIS_M[1] Downstream
Port Disable
Strap Option
-1
PRT_DIS_M[2] - 3
PRT_DIS_M[3] - 6
PRT_DIS_M[4] - 8 - 8
PRT_DIS_M[5] - 11
PRT_DIS_M[6] - 53
PRT_DIS_M[7] - 55
PRT_DIS_P[1] Port Disable - 2
PRT_DIS_P[2] - 4
PRT_DIS_P[3] - 7
PRT_DIS_P[4] - 9 - 9
PRT_DIS_P[5] - 12
PRT_DIS_P[6] - 54
PRT_DIS_P[7] - 56
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