HOLTEK HT82M980A

HT82M980A
5-Key 3D WIN2000 USB+PS/2 Mouse Controller
Features
· Operating voltage: 4.4V~5.25V
· Z axis can support two kinds of scroller input
(optomechanical and mechanical)
· Compatible with Microsoft Windows 2000 and
· Single chip solution especially for USB mouse
5-button Wheel Mouse
function
· Complete Universal Serial Bus specs V1.1
· HALT function and wake-up feature reduce power
compatibility
consumption
· Serial Bus Interface Engine (SIE)
· USB transceiver
· Plug and Play functions
· Microsoft 3D Intelli mouse and IBM PS/2 mouse
· Minimal external components
· 6MHz crystal oscillator for system clock
compatible
· Supports five buttons and three axes input
· 20-pin DIP package
General Description
put, namely; mechanical and optomechanical. It requires minimal external components to implement 3D
USB plus PS/2 mouse. All its features combined and
make up this versatile Holtek 8-bit MCU with an on-chip
USB interface logic. The USB is specified by the Universal Serial Bus Specification V1.1.
HT82M980A is a Plug and Play Windows 2000 and
5-button 3D USB+PS/2 Mouse controller. The
HT82M980A can support the USB Standard Request as
well as HID Class Request version 1.1. It is compatible
with Microsoft Intelli 3D PS/2 mouse. The X/Y axis photo
input with built-in Holtek¢s special dynamic photo-input
resistor and Z axis can support two kinds of scroller in-
Block Diagram
U S B
T r a n s c e iv e r
U S B D +
R e g is te r
S e t
U S B
R e c e iv e r
U S B D U S B
T r a n s m itte r
V 3 3 O
O S C 1
O S C 2
Rev. 1.40
V o lta g e
R e g u la to r
U S B
In te rfa c
(S
a
C o
L o
S e r ia l
e E n g in e
IE )
n d
n tro l
g ic
C lo c k
G e n e ra to r
M a in
S ta te m a c h in e
R C
R E S E T
S u s p e n s io n
C o n tro l
1
H o lte k
8 - b it
M ic r o c o n tr o lle r
F IF O s ´ 2
V D D
V S S
February 10, 2003
HT82M980A
Pin Assignment
V S S
1
2 0
O S C 1
V 3 3 O
2
1 9
O S C 2
U S B D + /C L K
3
1 8
V D D
U S B D - /D A T A
4
1 7
L E D
R E S E T
5
1 6
M
X 1
6
1 5
R
X 2
7
1 4
L
Y 1
8
1 3
Z 2
Y 2
9
1 2
Z 1
B 4
1 0
1 1
B 5
H T 8 2 M 9 8 0 A
2 0 D IP -A
Pin Description
Pin No.
Pin Name
I/O
Description
USB Interface (2 pins)
3
USBD+/CLK
I/O USB data plus or PS2 Clock, F/W auto-detect USBD+ for USB, CLK for PS2
4
USBD-/DATA
I/O USB data minus or PS2 Data, F/W auto-detect USB- for USB, DATA for PS2
General purpose I/O (11 pins)
6, 7
X1, X2
I
X-axis photo input with built-in Holtek¢s special dynamic photo input resistor
8, 9
Y1, Y2
I
Y-axis photo input with built-in Holtek¢s special dynamic photo input resistor
12, 13
Z1, Z2
I
Z-axis input supports two kinds of scroller input; optomechanical and mechanical
10, 11, 14
15, 16
L, R, M, B4, B5
I
Input ports with pull-high resistor. These pads can function as Left, Right, Middle, B4 and B5 button input lines.
Miscellaneous (7 pins)
1
VSS
¾
Negative power supply, ground
2
V33O
O
3.3V voltage output
I
Chip reset input, low active
5
RESET
17
LED
I/O Drives LED output
18
VDD
¾
5V positive power supply
19
OSC2
O
6MHz OSC output
20
OSC1
I
6MHz OSC input
Absolute Maximum Ratings
Supply Voltage ............................................-0.3V to 6V
Storage Temperature ............................-50°C to 125°C
MCU Input Voltage.....................VSS-0.3V to VDD+0.3V
Operating Temperature...........................-25°C to 70°C
USB Input Voltage ....................VSS-0.3V to V33O+0.3V
Note: These are stress ratings only. Stresses exceeding the range specified under ²Absolute Maximum Ratings² may
cause substantial damage to the device. Functional operation of this device at other conditions beyond those
listed in the specification is not implied and prolonged exposure to extreme conditions may affect device reliability.
Rev. 1.40
2
February 10, 2003
HT82M980A
D.C. Characteristics
Symbol
Ta=25°C
Test Conditions
Parameter
Typ.
Max.
Unit
4.4
¾
5.25
V
USB mode
¾
10
¾
mA
PS/2 mode
¾
3
¾
mA
¾
¾
250
mA
Conditions
¾
VDD
Operating Voltage
¾
IDD
Operating Current
(Crystal OSC)
5V
USB Suspend Mode
5V
ISUS
Min.
VDD
No load,
fSYS=6MHz
No load, system HALT
Input Low Voltage
VIL1
(X1, X2, Y1, Y2, Z1, Z2, L, M,
R, B4, B5)
5V
¾
0
¾
1.0
V
5V
¾
3.5
¾
5
V
5V
¾
0
¾
1.5
V
5V
¾
3.5
¾
5
V
¾
¾
3.7
¾
V
¾
50
¾
mA
Input High Voltage
VIH1
VIL2
VIH2
(X1, X2, Y1, Y2, Z1, Z2, L, M,
R, B4, B5)
Input Low Voltage
(RESET)
Input High Voltage
(RESET)
VPOR
Built-in Power on Reset VDD
Detection Voltage
5V
IOL
Sink Current (LED)
5V
VOL=0.8V
A.C. Characteristics
Symbol
fSYS
Ta=25°C
Test Conditions
Parameter
System Clock (Crystal OSC)
VDD
Conditions
5V
¾
Min.
Typ.
Max.
Unit
0
6000
¾
kHz
Note: tSYS=1/fSYS
Timing Diagram
X, Y Axis Photo-Coupler Crossed Width
X 1 (Y 1 ) (Z 1 )
X 2 (Y 2 ) (Z 2 )
tp
tr
tf
N o te : F o r X , Y - a x is tr, tp , tf > 3 0 m s
F o r Z - a x is tr, tp , tf > 1 m s
X, Y, Z Axis Counting
X 1
X 2
+ 1
+ 1
+ 1
-1
+ 1
-1
-1
-1
Z 1
Z 2
+ 1
Rev. 1.40
+ 1
-1
3
-1
February 10, 2003
HT82M980A
Application Circuits
This Application Circuit is for Reference Only
V
2 .2 m F
0 .1 m F *
1 0 k W *
2
3
4
1
1 0 m F
1
V S
V 3
U S
U S
0 .0 1 m F *
2
1 .5 k W
0 .1 m F
D D
R E C E P T _ A
1 M W
4
3
3 3 p F *
5
3 3 p F *
6
7
8
9
1 0
S
O S
3 O
O S
B D + /C L K
V
B D - /D A T A
L
R E S E T
X 1
X 2
Y 1
Y 2
1 9
C 2
D D
1 8
1 7
E D
6 M H z
2 2 W *
0 .1 m F
1 6
M
1 5
R
1 4
L
1 3
Z 2
1 2
Z 1
B 4
1 k W
2 0
C 1
1 1
B 5
1 k W
H T 8 2 M 9 8 0 A
V
2 .2 m F
1 M W
0 .1 m F *
1 0 k W *
4
3
2
1
1 0 m F
1
V S S
V 3 3 O
U S B D + /C L K
U S B D - /D A T A
2
0 .0 1 m F *
0 .1 m F
D D
R E C E P T _ A
3
1 .5 k W
4
3 3 p F *
3 3 p F *5
7
9
1 0
1 k W
1 8
1 7
L E D
X 2
8
1 9
O S C 2
V D D
R E S E T
X 1
6
2 0
O S C 1
M
1 5
R
Z 2
Y 2
Z 1
B 4
1 0 k W
1 6
L
Y 1
6 M H z
2 2 W *
0 .1 m F
B 5
1 4
1 3
1 2
1 1
H T 8 2 M 9 8 0 A
Z - a x is M e c h n ic a l
E n c o d e r
Note:
Layout 0.1mF capacitor, 22W resistor and 0.01mF capacitor as close to VDD pin as possible.
Layout power plane and ground plane as large as possible.
Place 0.1mF capacitor as close to RESET pin as possible.
Place 6MHz crystal as close to OSC1 and OSC2 pins as possible.
Components with * are used for EMC issue.
Rev. 1.40
4
February 10, 2003
HT82M980A
Package Information
20-pin DIP (300mil) Outline Dimensions
A
B
2 0
1 1
1
1 0
H
C
D
E
Symbol
Rev. 1.40
F
a
G
I
Dimensions in mil
Min.
Nom.
Max.
A
1020
¾
1045
B
240
¾
260
C
125
¾
135
D
125
¾
145
E
16
¾
20
F
50
¾
70
G
¾
100
¾
H
295
¾
315
I
335
¾
375
a
0°
¾
15°
5
February 10, 2003
HT82M980A
Holtek Semiconductor Inc. (Headquarters)
No.3, Creation Rd. II, Science Park, Hsinchu, Taiwan
Tel: 886-3-563-1999
Fax: 886-3-563-1189
http://www.holtek.com.tw
Holtek Semiconductor Inc. (Taipei Sales Office)
4F-2, No. 3-2, YuanQu St., Nankang Software Park, Taipei 115, Taiwan
Tel: 886-2-2655-7070
Fax: 886-2-2655-7373
Fax: 886-2-2655-7383 (International sales hotline)
Holtek Semiconductor Inc. (Shanghai Sales Office)
7th Floor, Building 2, No.889, Yi Shan Rd., Shanghai, China 200233
Tel: 021-6485-5560
Fax: 021-6485-0313
http://www.holtek.com.cn
Holtek Semiconductor Inc. (Shenzhen Sales Office)
43F, SEG Plaza, Shen Nan Zhong Road, Shenzhen, China 518031
Tel: 0755-8346-5589
Fax: 0755-8346-5590
ISDN: 0755-8346-5591
Holtek Semiconductor Inc. (Beijing Sales Office)
Suite 1721, Jinyu Tower, A129 West Xuan Wu Men Street, Xicheng District, Beijing, China 100031
Tel: 010-6641-0030, 6641-7751, 6641-7752
Fax: 010-6641-0125
Holmate Semiconductor, Inc. (North America Sales Office)
46712 Fremont Blvd., Fremont, CA 94538
Tel: 510-252-9880
Fax: 510-252-9885
http://www.holmate.com
Copyright Ó 2003 by HOLTEK SEMICONDUCTOR INC.
The information appearing in this Data Sheet is believed to be accurate at the time of publication. However, Holtek assumes no responsibility arising from the use of the specifications described. The applications mentioned herein are used
solely for the purpose of illustration and Holtek makes no warranty or representation that such applications will be suitable
without further modification, nor recommends the use of its products for application that may present a risk to human life
due to malfunction or otherwise. Holtek¢s products are not authorized for use as critical components in life support devices
or systems. Holtek reserves the right to alter its products without prior notification. For the most up-to-date information,
please visit our web site at http://www.holtek.com.tw.
Rev. 1.40
6
February 10, 2003