USB 2.0 Hi-Speed Hub Controller
Datasheet
SDA / SMBDATA / NON_REM[1]
SCL / SMBCLK / CFG_SEL[0]
PRTPWR[4] / BC_EN[4]*
HS_IND / CFG_SEL[1]
VBUS_DET
RESET_N
OCS_N[4]
27
26
25
24
23
22
21
20
SUSP_IND / LOCAL_PWR / NON_REM[0]
VDD33
USBDM_UP
USBDP_UP
XTALOUT
XTALIN / CLKIN
PLLFILT
RBIAS
VDD33
28
29
30
31
32
33
34
35
36
1
2
3
4
5
6
7
8
9
19
18
17
16
15
14
13
12
11
10
OCS_N[3]
VDD33
PRTPWR[3] / BC_EN[3]*
OCS_N[2]
PRTPWR[2] / BC_EN[2]*
VDD33
CRFILT
OCS_N[1]
PRTPWR[1] / BC_EN[1]*
TEST
VDD33
SMSC
USB2514/14i
USB2514B/14Bi
(Top View QFN-36)
Ground Pad
(must be connected to VSS)
USBDP_DN[1] / PRT_DIS_P[1]
USBDP_DN[2] / PRT_DIS_P[2]
USBDP_DN[3] / PRT_DIS_P[3]
USBDM_DN[1] / PRT_DIS_M[1]
USBDM_DN[2] / PRT_DIS_M[2]
USBDM_DN[3] / PRT_DIS_M[3]
Indicates pins on the bottom of the device.
Figure 5.3 4-Port 36-pin QFN
Note:
*Battery charging enable (BC_EN) is only available in the USB251xB/Bi.
Revision 1.0 (3-11-09)
14
USBDM_DN[4] / PRT_DIS_M[4]
USBDP_DN[4] / PRT_DIS_P[4]
VDD33
SMSC USB251x
DATASHEET
SMSC [ SMSC CORPORATION ]
