PixArt Imaging Inc.

PAW3401

12 PIN PS/2 Optical Mouse Sensor

1. Pin Configuration

1.1 Pin Description

Pin # Name

Type

Definition

1

BL

IN

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

2

LED

OUT

LED control

3

OSC_RES

IN

Connect to resistor input

4

VSS

GND

Chip ground

5

VDD5V

PWR

Chip power VDD, 5.0V

6

VREF

BYPASS Analog voltage reference

7

CLOCK

I/O

PS/2 mouse clock line

8

DATA

I/O

PS/2 mouse data line

9

BR

IN

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

10

BM

IN

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

11

Z2

IN

Z axis, support mechanical scroller input

12

Z1

IN

Z axis, support mechanical scroller input

1.2 Pin Assignment

Figure 1. Top View Pinout

Figure 2. Top View of Mouse

All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission

PixArt Imaging Inc.

V1.1, Dec. 2006

.

2