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HT82M980A
5-Key 3D WIN2000 USB+PS/2 Mouse Controller
Features
* Operating voltage: 4.4V~5.25V * Compatible with Microsoft Windows 2000 and * Z axis can support two kinds of scroller input
(optomechanical and mechanical)
* Single chip solution especially for USB mouse
5-button Wheel Mouse
* Complete Universal Serial Bus specs V1.1
function
* HALT function and wake-up feature reduce power
compatibility
* Serial Bus Interface Engine (SIE) * USB transceiver * Microsoft 3D Intelli mouse and IBM PS/2 mouse
consumption
* Plug and Play functions * Minimal external components * 6MHz crystal oscillator for system clock * 20-pin DIP package
compatible
* Supports five buttons and three axes input
General Description
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 Holteks special dynamic photo-input resistor and Z axis can support two kinds of scroller input, 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.
Block Diagram
USB T r a n s c e iv e r USB R e c e iv e r
R e g is te r Set
USBD+ USBD-
USB T r a n s m itte r
V33O
V o lta g e R e g u la to r
USB In te rfa c (S a Co Lo
S e r ia l e E n g in e IE ) nd n tro l g ic
H o lte k 8 - b it M ic r o c o n tr o lle r
OSC1 OSC2
C lo c k G e n e ra to r RC RESET
M a in S ta te m a c h in e S u s p e n s io n C o n tro l
F IF O s 2 VDD VSS
Rev. 1.40
1
February 10, 2003
HT82M980A
Pin Assignment
VSS 1 2 3 4 5 6 7 8 9 10 V33O U S B D + /C L K U S B D - /D A T A RESET X1 X2 Y1 Y2 B4 20 19 18 17 16 M R L Z2 Z1 B5 15 14 13 12 11 OSC1 OSC2 VDD LED
HT82M 980A 2 0 D IP -A
Pin Description
Pin No. Pin Name I/O Description USB Interface (2 pins) 3 4 USBD+/CLK USBD-/DATA I/O USB data plus or PS2 Clock, F/W auto-detect USBD+ for USB, CLK for PS2 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 8, 9 12, 13 10, 11, 14 15, 16 X1, X2 Y1, Y2 Z1, Z2 L, R, M, B4, B5 I I I I X-axis photo input with built-in Holteks special dynamic photo input resistor Y-axis photo input with built-in Holteks special dynamic photo input resistor Z-axis input supports two kinds of scroller input; optomechanical and mechanical Input ports with pull-high resistor. These pads can function as Left, Right, Middle, B4 and B5 button input lines.
Miscellaneous (7 pins) 1 2 5 17 18 19 20 VSS V33O RESET LED VDD OSC2 OSC1 3/4 O I Negative power supply, ground 3.3V voltage output Chip reset input, low active
I/O Drives LED output 3/4 O I 5V positive power supply 6MHz OSC output 6MHz OSC input
Absolute Maximum Ratings
Supply Voltage ............................................-0.3V to 6V MCU Input Voltage.....................VSS-0.3V to VDD+0.3V USB Input Voltage ....................VSS-0.3V to V33O+0.3V Note: These are stress ratings only. Stresses exceeding the range specified under Absolute Maximum Ratings 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. Storage Temperature ............................-50C to 125C Operating Temperature...........................-25C to 70C
Rev. 1.40
2
February 10, 2003
HT82M980A
D.C. Characteristics
Symbol VDD IDD ISUS VIL1 Parameter Operating Voltage Operating Current (Crystal OSC) USB Suspend Mode Input Low Voltage (X1, X2, Y1, Y2, Z1, Z2, L, M, R, B4, B5) Input High Voltage VIH1 (X1, X2, Y1, Y2, Z1, Z2, L, M, R, B4, B5) Input Low Voltage (RESET) Input High Voltage (RESET) Built-in Power on Reset VDD Detection Voltage Sink Current (LED) 5V 3/4 3.5 3/4 5 V 5V 3/4 0 3/4 1.0 V Test Conditions VDD 3/4 5V 5V No load, fSYS=6MHz Conditions 3/4 USB mode PS/2 mode Min. 4.4 3/4 3/4 3/4 Typ. 3/4 10 3 3/4 Max. 5.25 3/4 3/4 250 Ta=25C Unit V mA mA mA
No load, system HALT
VIL2 VIH2 VPOR IOL
5V
3/4 3/4 3/4 VOL=0.8V
0
3/4 3/4 3.7 50
1.5
V
5V 5V 5V
3.5 3/4 3/4
5 3/4 3/4
V V mA
A.C. Characteristics
Symbol fSYS Parameter System Clock (Crystal OSC) Test Conditions VDD 5V Conditions 3/4 Min. 0 Typ. 6000 Max. 3/4
Ta=25C Unit 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 ) tr tp tf
N o te : . o r X , Y - a x is tr, tp , tf > 3 0 m s . o r Z - a x is tr, tp , tf > 1 m s
X, Y, Z Axis Counting
X1 X2 +1 Z1 Z2 +1 +1 -1 -1 +1 +1 +1 -1 -1 -1 -1
Rev. 1.40
3
February 10, 2003
HT82M980A
Application Circuits
This Application Circuit is for Reference Only
V 2 .2 m . 0 .1 m . * 1M W 10kW * RECEPT_A 4 3 2 1 10m. 1 0 .0 1 m . * 2 4 33p.* 33p.* 6 7 8 9 10 1kW 5 3 0 .1 m . 1 .5 k W S OS 3O OS B D + /C L K V B D - /D A T A L RESET X1 X2 Y1 Y2 B4 VS V3 US US C1 C2 DD ED M R L Z2 Z1 B5 20 19 18 17 16 15 14 13 12 11 1kW 6M H z 22W * 0 .1 m .
DD
H T82M 980A
V 2 .2 m . 0 .1 m . * 1M W 10kW * RECEPT_A 4 3 2 1 10m. 1 0 .0 1 m . * 0 .1 m . 1 .5 k W 4 33p.* 3 3 p . *5 6 7 8 9 10 1kW 3 2 VSS V33O U S B D + /C L K U S B D - /D A T A RESET X1 M R L Z2 Z1 B5 X2 Y1 Y2 B4 OSC1 OSC2 VDD LED 20 19 18 17 16 15 14 13 12 11 6M H z 22W * 0 .1 m .
DD
10kW
H T82M 980A
Z - a x is M e c h n ic a l E ncoder
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 20 B 1 11 10
H C D E . G
a
I
Symbol A B C D E F G H I a
Dimensions in mil Min. 1020 240 125 125 16 50 3/4 295 335 0 Nom. 3/4 3/4 3/4 3/4 3/4 3/4 100 3/4 3/4 3/4 Max. 1045 260 135 145 20 70 3/4 315 375 15
Rev. 1.40
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 O 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. Holteks 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

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