USB251XB 查看數據表（PDF） - Microchip Technology

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USB251XB

USB 2.0 Hi-Speed Hub Controller

Microchip Technology 

USB251xB/xBi

TABLE 3-1:

USB251XB/XBI PIN LIST (ALPHABETICAL) (CONTINUED)

Pin Numbers

Symbol

Name

PRTPWR1

PRTPWR2

PRTPWR3

PRTPWR4

RBIAS

RESET_N

SCL

SDA

SMBCLK

SMBDATA

SUSP_IND

TEST

USBDM_UP

USBDP_UP

USBDM_DN1

USBDM_DN2

USBDM_DN3

USBDM_DN4

USBDP_DN1

USBDP_DN2

USBDP_DN3

USBDP_DN4

VBUS_DET

VDD33

VDD33

VDDA33

VDDA33

VDDA33

VDDA33

XTALIN

XTALOUT

USB Port Power

Enable

USB Transceiver

Bias

Reset Input

Serial Clock

Serial Data Signal

System

Management Bus

Clock

System

Management Bus

Data Signal

Active/Suspend

Status Indicator

Test Pin

USB Bus Data

Hi-Speed USB Data

Upstream VBUS

Power Detection

3.3 V Digital Power

3.3 V Analog Power

Crystal Input

Crystal Output

12

16

-

18

-

20

35

26

24

22

24

22

28

11

30

31

1

3

-

6

-

8

2

4

-

7

-

9

27

15

23

5

10

29

36

33

32

 2010 - 2015 Microchip Technology Inc.

DS00001692C-page 11

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