Datasheet

USB 2.0 Hi-Speed Hub Controller
Datasheet
SMSC USB251xB/xBi 15 Revision 2.2 (02-17-12)
DATASHEET
PRT_DIS_M1 Downstream Port
Disable Strap Option
-1
PRT_DIS_M2 3
PRT_DIS_M3 -6
PRT_DIS_M4 -8
PRT_DIS_P1 Port Disable - 2
PRT_DIS_P2 4
PRT_DIS_P3 -7
PRT_DIS_P4 -9
PRTPWR1 USB Port Power
Enable
12
PRTPWR2 16
PRTPWR3 -18
PRTPWR4 -20
RBIAS USB Transceiver
Bias
35
RESET_N Reset Input 26
SCL Serial Clock 24
SDA Serial Data Signal 22
SMBCLK System Management
Bus Clock
24
SMBDATA Server Message
Block Data Signal
22
SUSP_IND Active/Suspend
Status Indicator
28
TEST Test Pin 11
USBDM_UP USB Bus Data 30
USBDP_UP 31
USBDM_DN1 Hi-Speed USB Data 1
USBDM_DN2 3
USBDM_DN3 -6
USBDM_DN4 -8
USBDP_DN1 2
USBDP_DN2 4
USBDP_DN3 -7
USBDP_DN4 -9
Table 3.1 USB251xB/xBi Pin List (Alphabetical) (continued)
SYMBOL NAME
PIN NUMBERS
36 QFN
USB2512B USB2512Bi USB2513B USB2513Bi USB2514B USB2514Bi