Datasheet

USB 2.0 Hi-Speed Hub Controller
Datasheet
SMSC USB251x 19 Revision 1.1 (04-26-10)
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 USB22513i USB2514 USB22514i USB2517 USB2517i