HT82M398A
WIN2000 3D PS/2 Mouse Controller
Features
·
·
Operating Voltage: 4.75V~5.25V
Supports three buttons and three axes (X, Y, Z)
inputs
·
Compatible with Microsoft Windows 2000 and
·
5-button Wheel Mouse
Z axis can support two kinds of scroller input
(optomechanical and mechanical)
·
Compatible with Microsoft Intelli 3D PS/2 and IBM
PS/2 mouse
·
·
2MHz RC oscillator for system frequency with
external pull-high resistor
·
·
Supports rolling buttons in PS/2 mouse mode
16-pin DIP package
X/Y axis photo input with built-in Holtek¢s special
dynamic photo-input resistor
General Description
The HT82M398A is a Plug and Play WIN2000 and
5-button 3D PS/2 mouse controller. It is also compatible
with Microsoft Intelli 3D PS/2 and IBM PS/2 mouse. The
Z axis can support two kinds of scroller input, namely;
mechanical and optomechanical.
Pin Assignment
Y
Y
X
X
B
L
R
R
2
1
2
1
4
Z
Z
1
2
1
2
3
4
5
6
7
8
1
1
1
1
1
1
1
6
5
4
3
2
1
0
9
V
D
D
B
5
V
S
S
B
O
S
C
I
0
B
C
A
L
K
A
D
T
H
T
8
2
M
3
9
8
A
1
6
D
I
P
-
A
Pin Description
Pin No.
Pin Name
I/O
Description
Z, axis input supports two kinds of scroller input, namely; optomechanical and me-
chanical.
1, 2
Z1, Z2
I
3
4
5
VDD
B5
Positive power supply
¾
I
Button 5, normal pull-low (50kW), Press connect to high.
Negative power supply, ground
VSS
¾
2MHz RC oscillator for system frequency with external pull-high resistor and built-in
Capacitor.
6
7
8
OSCI
CLK
I
I/O
I/O
CLK I/O, PS/2 mouse CLK line. NMOS open drain output with 5kW pull-high resistor.
DATA I/O, PS/2 mouse DATA line. NMOS open drain output with 5kW pull-high re-
DATA
sistor.
Right Button: Normal pull-low (50kW),
Pressing the button connects to high.
Rolling Button: Normal pull-low (50kW),
Pressing the button connects to high.
Left Button: Normal pull-low (50kW),
Pressing the button connects to high.
9~11
12
RB, RO, LB
I
B4
I
I
Button 4, normal pull-low (50kW), Press connect to high.
13~16 X1, X2, Y1, Y2
X/Y axis photo input with built-in Holtek¢s special dynamic photo input resistor
Rev. 1.20
1
August 20, 2002