3

PI3USB3102

USB3.0 and 2.0 Combo switch

11/09/12

Pin Description

pin#

pin Name

Signal Type

Description

1

Tx+

I/O

positive differential USB3.0 Tx signal for COM port

2

Tx-

I/O

negative differential USB3.0 Tx signal for COM port

3

VDD

Power

3.3V +/-10% power supply

4

Rx+

I/O

positive differential USB3.0 Rx signal for COM port

5

Rx-

I/O

negative differential USB3.0 Rx signal for COM port

6

D+

I/O

positive differential USB2.0 signal for COM port

7

D-

I/O

negative differential USB2.0 signal for COM port

8

USB_ID

I/O

USB_ID for COM port

9

VDD

Power

3.3V +/-10% power supply

10

SS_SEL

I

switch logic control for SuperSpeed Path

If HIGH, then path B is selected for SuperSpeed channels only

If LOW, then path A is selected for SuperSpeed channels only

11

OE

I

Output enable. if OE is low, IC is enabled. If OE is high, then IC is power

down and all I/Os are hi-z

12

VDD

Power

3.3V +/-10% power supply

13

USB_IDB

I/O

USB_ID for port B

14

D-B

I/O

negative differential USB2.0 signal for port B

15

D+B

I/O

positive differential USB2.0 signal for port B

16

VDD

Power

3.3V +/-10% power supply

17

USB_IDA

I/O

USB_ID for port A

18

D-A

I/O

negative differential USB2.0 signal for port A

19

D+A

I/O

positive differential USB2.0 signal for port A

20

VDD

Power

3.3V +/-10% power supply

21

GND

Ground

Ground

22

Rx-B

I/O

negative differential USB3.0 Rx signal for port B

23

Rx+B

I/O

positive differential USB3.0 Rx signal for port B

24

Tx-B

I/O

negative differential USB3.0 Tx signal for port B

25

Tx+B

I/O

positive differential USB3.0 Tx signal for port B

26

Rx-A

I/O

negative differential USB3.0 Rx signal for port A

27

Rx+A

I/O

positive differential USB3.0 Rx signal for port A

28

GND

Ground

Ground

29

VDD

Power

3.3V +/-10% power supply

30

Tx-A

I/O

negative differential USB3.0 Tx signal for port A

31

Tx+A

I/O

positive differential USB3.0 Tx signal for port A

32

HS_SEL

I

switch logic control for USB2.0 (D+/-) and USB_ID path

If High, path B is selected

If LOW, path A is selected

12-0264