Datasheet

USB 2.0 Hi-Speed Hub Controller
Datasheet
Revision 2.2 (02-17-12) 14 SMSC USB251xB/xBi
DATASHEET
3.2 Pin List (Alphabetical)
Table 3.1 USB251xB/xBi Pin List (Alphabetical)
SYMBOL NAME
PIN NUMBERS
36 QFN
USB2512B USB2512Bi USB2513B USB2513Bi USB2514B USB2514Bi
BC_EN1 Battery Charging
Strap Option
12
BC_EN2 16
BC_EN3 -18
BC_EN4 -20
CFG_SEL0 Configuration
Programming
Selection
24
CFG_SEL1 25
CLKIN External Clock Input 33
CRFILT Core Regulator Filter
Capacitor
14
Ground Pad Exposed Pad Tied to
Ground (VSS)
ePad
HS_IND Hi-Speed Upstream
Port Indicator
25
LOCAL_PWR Local Power
Detection
28
NC No Connect 6 -
NC 7-
NC 18 -
NC 19 -
NC 8-
NC 9-
NC 20 -
NC 21 -
NON_REM0 Non-Removable Port
Strap Option
28
NON_REM1 22
OCS_N1 Over-Current Sense 13
OCS_N2 17
OCS_N3 -19
OCS_N4 -21
PLLFILT PLL Regulator Filter
Capacitor
34