Datasheet

USB 2.0 Hi-Speed Hub Controller
Datasheet
Revision 1.1 (04-26-10) 18 SMSC USB251x
DATASHEET
Table 5.1 Pin List in Alphabetical Order
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
BC_EN[1] Battery
Charging Strap
Option
-12-12-12 -
BC_EN[2] - 16 - 16 - 16 -
BC_EN[3] - 18 - 18 -
BC_EN[4] - 20 -
BOOST[0] PHY Boost
Strapping
Option
-3650
BOOST[1] - 24 48
CFG_SEL[0] Configuration
Programming
Selection
24 31 41
CFG_SEL[1] 25 32 42
CFG_SEL[2] - 33 13
CLKIN External Clock
Input
33 45 61
CRFILT Core Regulator
Filter Capacitor
14 17 25
GANG_EN Ganged Port
Power Strap
Option
-2234
Ground Pad Exposed Pad
Tied to Ground
(VSS)
ePad
HS_IND Hi-Speed
Upstream Port
Indicator
25 32 42
LED_A_N[1] Port LED
Indicator
-3751
LED_A_N[2] - 25 49
LED_A_N[3] - 23 47
LED_A_N[4] - 13 33
LED_A_N[5] - 31
LED_A_N[6] - 17
LED_A_N[7] - 15
LED_B_N[1] Enhanced
Indicator
Port LED
-3650
LED_B_N[2] - 24 48
LED_B_N[3] - 22 34
LED_B_N[4] - 12 32
LED_B_N[5] - 18
LED_B_N[6] - 16
LED_B_N[7] - 14
LOCAL_PWR Local Power
Detection
28 39 45