USB 2.0 Hi-Speed Hub Controller

Datasheet

 

VBUS DET

RESET N

HS IND / CFG SEL[1]

SCL / SMBCLK / CFG SEL[0]

VDD33

SDA / SMBDATA / NON REM[1]

OCS N[4]

PRTPWR[4] / BC EN[4]*

OCS N[3]

 

 

27

26

25

24

23

22

21

20

19

 

SUSP_IND / LOCAL_PWR / NON_REM[0]

28

 

 

 

 

 

 

 

18

PRTPWR[3] / BC_EN[3]*

VDD33

29

 

 

 

 

 

 

 

17

OCS_N[2]

USBDM_UP

30

 

 

SMSC

 

 

16

PRTPWR[2] / BC_EN[2]*

USBDP_UP

31

 

 

 

 

15

VDD33

 

USB2514/14i

 

XTALOUT

32

 

 

14

CRFILT

 

USB2514B/14Bi

XTALIN / CLKIN

33

 

13

OCS_N[1]

(Top View QFN-36)

PLLFILT

34

12

PRTPWR[1] / BC_EN[1]*

 

 

Ground Pad

 

 

RBIAS

35

 

 

 

 

11

TEST

(must be connected to VSS)

 

 

 

 

VDD33

36

 

 

 

 

 

 

 

10

VDD33

 

1 2 3 4 5 6 7 8 9

 

 

PRT DIS M[1]

PRT DIS P[1]

PRT DIS M[2]

PRT DIS P[2]

VDD33

PRT DIS M[3]

PRT DIS P[3]

PRT DIS M[4]

PRT DIS P[4]

 

 

USBDM DN[1] /

USBDP DN[1] /

USBDM DN[2] /

USBDP DN[2] /

 

USBDM DN[3] /

USBDP DN[3] /

USBDM DN[4] /

USBDP DN[4] /

 

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

SMSC USB251x

DATASHEET