PixArt Imaging Inc.
PAW3401
12 PIN PS/2 Optical Mouse Sensor
1. Pin Configuration
1.1 Pin Description
Pin # Name
Type
IN
Definition
1
BL
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
Chip ground
4
VSS
GND
PWR
5
VDD5V
VREF
CLOCK
DATA
BR
Chip power VDD, 5.0V
6
BYPASS Analog voltage reference
7
I/O
I/O
IN
IN
IN
IN
PS/2 mouse clock line
8
PS/2 mouse data line
9
Button right key input, normal pull-high (50k), press connect to low
Button middle key input, normal pull-high (50k), press connect to low
Z axis, support mechanical scroller input
Z axis, support mechanical scroller input
10
11
12
BM
Z2
Z1
1.2 Pin Assignment
Figure 1. Top View Pinout
Figure 2. Top View of Mouse
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PixArt Imaging Inc.
2
E-mail: fae_service@pixart.com.tw
V1.1, Dec. 2006
PIXART [ PIXART IMAGING INC. ]
