USB 2.0 Hi-Speed Hub Controller
Datasheet
LED_A_N[1] / PRTSWP[1]
LED_B_N[2] / BOOST[1]
LED_A_N[3] / PRTSWP[3]
LED_B_N[3] / GANG_EN
PRTPWR[3]
37
38
39
40
41
42
43
44
45
46
47
48
24
23
22
21
20
19
18
17
16
15
14
13
PRTPWR_POL
SUSP_IND / LOCAL_PWR / NON_REM[0]
SEL48
VDD33
OCS_N[2]
SMSC
USB2514
(Top View QFN-48)
USBDM_UP
USBDP_UP
XTALOUT
XTALIN / CLKIN
PLLFILT
PRTPWR[2]
VDD33
CRFILT
OCS_N[1]
PRTPWR[1]
Ground Pad
(must be connected to VSS)
RBIAS
TEST
VDD33
LED_A_N[4] / PRTSWP[4]
Indicates pins on the bottom of the device.
Figure 5.5 4-Port 48-Pin QFN
Revision 1.0 (3-11-09)
16
SMSC USB251x
DATASHEET
SMSC [ SMSC CORPORATION ]
