PixArt Imaging Inc.

PAW3203DI

Wireless Optical Mouse Single Chip

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2

PixArt Imaging Inc.

V0.3 April. 2008

1. Pin Configuration

1.1 Pin Description

Pin

#

Name

Type

Definition

1

ZY1

IN

Z axis, scroller input, internal pull-low (50k), support mechanical encoder only

2

ZY2

IN

Z axis, scroller input, internal pull-low (50k), support mechanical encoder only

3

BL

IN

Button left key input, internal pull-high (50k), press connect to low

4

B4

IN

Button 4 key input, internal pull-high (50k), press connect to low

5

LED

I/O

LED driver control

6

OSCOUT OUT

Oscillator output, connect to 27 MHz crystal

7

OSCIN

IN

Oscillator input, connect to 27 MHz crystal

8

VDDD

PWR

Digital circuit voltage power, 1.8V

9

VSS

GND

Chip ground

10 VDD

PWR

11 VDDA

PWR

Analog circuit voltage power, 1.8V

12 VREF

BYPASS Analog circuit voltage reference

13 B5

IN

Button 5 key input, internal pull-high (50k), press connect to low

14 NC

-

No connection

15 ISCK

IN

I

16 ISDA

I/O

I

17 RFID

IN

RFID resynchronization, internal pull-high (50k), press connect to low

18 RFDATA OUT

RF data output, CMOS output

19 RFEN

OUT

RF power control, CMOS output

20 BR

IN

Button right key input, internal pull-high (50k), press connect to low

21 BM

IN

Button middle key input, internal pull-high (50k), press connect to low

22 NC

-

No connection

23 RFU

IN

Reserve for future use

24 BATLow IN

Battery low detection input

1.2 Pin Assignment

1

13

12

24

1

13

12

24

LB

RB

+ X

+ Y

Figure 1. Top View Pinout

Figure 2. Top View of Mouse