2

FN7701.0

September 27, 2010

Pin Configuration

12 LD 2.2x1.4 µTQFN

TOP VIEW

12 LD 3x3 TQFN

TOP VIEW

NOTE:

1. ISL54216 Switches Shown for C1 = Logic “1” and C0 = Logic “0”.

10

12

9

C1

COM -

COM +

VDD

C0

8

7

11

6

4

5

2

1

3

3D+

2D-

2D+

GND

1D-

1D+

3D-

LOGIC

CONTROL

4MΩ

4MΩ

1

3

12

C1

COM -

COM +

VDD

C0

11

10

2

9

7

8

5

46

3D+

2D-

2D+

GND

1D-

1D+

3D-

LOGIC

CONTROL

4MΩ

4MΩ

PD

Pin Descriptions

µTQFN TQFN NAME

FUNCTION

11

3D+

USB3 Differential Input

22

2D-

USB2 Differential Input

33

2D+

USB2 Differential Input

4

4

1D-

USB1 Differential Input

55

1D+

USB1 Differential Input

6

6

GND

Ground Connection

7

7

COM+ Data Common Pin

8

8

COM- Data Common Pin

9

9

C1

Digital Control Input

10

10

C0

Digital Control Input

11

11

12

12

3D-

USB3 Differential Input

-

PD

PD

Thermal Pad. Tie to Ground or Float

Truth Table

C1

C0

MODE

COMMENTS

0

0

Wired-OR Audio

All switches open

0

1

USB/UART #1

1D- and 1D+ ON

1

0

USB/UART #2

2D- and 2D+ ON

1

1

USB/UART #3

3D- and 3D+ ON

C0, C1: Logic “0” when ≤ 0.5V or float, Logic “1” when ≥ 1.4V

ISL54216