AU9254A21 View Datasheet(PDF) - Unspecified

Part Name

Description

Manufacturer

AU9254A21

single chip 4-port USB hub controller

Unspecified 

3.0 Pin Assignment

The AU9254A21 is packaged as a 28-pin shrink small outline plastic package (SSOP).

The figure on the following page shows the signal names for each of the pins on the chip.

Accompanying the figure is the table that describes each of the pin signals.

USB2_DM

1

USB2_DP

2

USB3_DM

3

USB3_DP

4

USB4_DM

5

USB4_DP

6

DP4_PWRUP

7

DP2_PWRUP

8

BUS_PWRED

9

VCC5O/VCC5IK

10

GND5O/GND5IK

11

VCC3V

12

DP1_PWRUP

13

GANGPOWER

14

ALCOR MICRO

AU9254 A21

USB HUB

CONTROLLER

28 - PIN SSOP

28

USB1_DP

27

USB1_DM

26

USB_DP

25

USB_DM

24

DP3_OVRCUR

23

DP4_OVRCUR

22

DP3_PWRUP

21

XTAL2

20

XTAL1

19

AGND/GNDO

18

NC

17

DP2_OVRCUR

16

SUSPEND

15

DP1_OVRCUR

APPLICATION BLOCK DIAGRAM

5

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