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HT82M98A
3-Key 3D USB+PS/2 Mouse Controller
Features
* Operating voltage: 4.4V~5.25V * Complete Universal Serial Bus specs V1.1 * Single chip solution especially for USB mouse
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 * 18/20-pin DIP package
compatible
* Supports three buttons (R, M, L) and three axes
(X, Y, Z) input
* Z axis can only support encoder which divided by 2
General Description
HT82M98A is a 3D mouse controller especially designed for USB and PS/2 applications. The HT82M98A 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; optomechanical and mechanical. It requires minimal external components to implement 3D USB plus PS/2 mouse. It can be briefly described as a 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
M a in S ta te m a c h in e
F IF O s 2
RC RESET
S u s p e n s io n C o n tro l
VDD VSS
Rev. 2.00
1
October 31, 2006
HT82M98A
Pin Assignment
VSS 1 2 3 4 5 6 7 8 9 10 VSS 1 2 3 4 5 6 7 8 9 V33O U S B D + /C L K U S B D - /D A T A RESET X1 X2 Y1 Y2 18 17 16 15 14 13 12 11 10 L Z2 Z1 R M OSC1 OSC2 VDD LED V33O U S B D + /C L K U S B D -/D A T A RESET X1 X2 Y1 Y2 SEL0 20 19 18 17 16 15 14 13 12 11 H T82M 98A 2 0 D IP -A L Z2 Z1 SEL1 R M OSC1 OSC2 VDD LED
H T82M 98A 1 8 D IP -A
Pin Description
Pin Name I/O Description USB Interface (2 pins) USBD+/CLK USBD-/DATA I/O I/O USB data plus or PS2 Clock, F/W auto-detect USBD+ for USB, CLK for PS2 USB data minus or PS2 Data, F/W auto-detect USBD- for USB, DATA for PS2
General purpose I/O (11 pins) X1, X2 Y1, Y2 Z1, Z2 L, R, M 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 and Middle button input lines. SEL0=1: 400DPI (default) SEL0=0: 800DIP SEL1=1: USB and PS2 combo (default) SEL1=0: USB only
SEL0* SEL1*
I I
Miscellaneous (7 pins) VSS V33O RESET LED VDD OSC2 OSC1 3/4 O I I/O 3/4 O I Negative power supply, ground 3.3V voltage output Chip reset input, low active Drives LED output 5V positive power supply 6MHz OSC output 6MHz OSC input
Note: * These functions are only available on date code -4 version
Absolute Maximum Ratings
Supply Voltage ..............................VSS-0.3V to VSS+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. 2.00
2
October 31, 2006
HT82M98A
D.C. Characteristics
Symbol VDD IDD ISTB VIL1 VIH1 VIL2 VIH2 VIH3 VPOR IOL1 IOH1 IOL2 RPH Parameter Operating Voltage Operating Current (Crystal OSC) Standby Current Input Low Voltage for I/O Ports Input High Voltage for MCU I/O Ports Input Low Voltage (RESET) Input High Voltage (RESET) Input High Voltage for USB I/O Ports Power on Reset VDD Detection Voltage Output Port Sink Current Output Port Source Current Output Port Sink Current (LED) Pull-high Resistance for RESET Test Conditions VDD 3/4 5V 5V 5V 5V 5V 5V 3.3V 5V 5V 5V 5V 5V VOL=0.5V VOL=4.5V VOL=4.5V 3/4 Conditions 3/4 No load, fSYS=6MHz PS/2 mode No load, system HALT 3/4 3/4 3/4 3/4 3/4 3/4 USB mode Min. 4.4 3/4 3/4 3/4 0 3.5 0 3.5 2.8 3.5 3/4 3/4 3/4 50 Typ. 3/4 10 3 3/4 3/4 3/4 3/4 3/4 3/4 3/4 4 -4 50 100 Max. 5.25 3/4 3/4 250 1.0 5 1.5 5 3.6 3.9 3/4 3/4 3/4 150 Ta=25C Unit V mA mA mA V V V V V V mA mA mA kW
A.C. Characteristics
Symbol fSYS tOST Parameter System Clock (Crystal OSC) Oscillation Start-up Timer Period Test Conditions VDD 5V 3/4 Conditions 3/4 Power-up or wake-up form HALT Min. 0 3/4 Typ. 6000 1024 Max. 3/4 3/4
Ta=25C Unit kHz tSYS
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 : 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 > 2 .5 m s
X, Y, Z Axis Counting
X1 X2 +1 Z1 Z2 +1 +1 -1 -1 +1 +1 +1 -1 -1 -1 -1
Rev. 2.00
3
October 31, 2006
HT82M98A
Application Circuits
This Application Circuit is for Reference Only
V 2 .2 m F 0 .1 m F * 1M W 10kW * RECEPT_A 4 3 2 1 10mF 1 3 4 2 VSS V33O U S B D + /C L K U S B D - /D A T A RESET X1 X2 7 8 9 Y1 Y2 OSC1 OSC2 VDD LED M R L Z2 Z1 18 17 16 15 14 13 12 11 10
DD
0 .0 1 m F * 0 .1 m F 1 .5 k W 33pF*
6M H z 22W * 0 .1 m F
33pF* 5 6
H T82M 98A
V 2 .2 m F 0 .1 m F * 1M W 10kW * RECEPT_A 4 3 2 1 10mF 1 0 .0 1 m F * 2 3 4 5 6 7 8 9 0 .1 m F 1 .5 k W 33pF* 33pF* VSS V33O U S B D + /C L K U S B D - /D A T A RESET X1 X2 Y1 Y2 Z2 Z1 OSC1 OSC2 VDD LED M R L 18 17 16 15 14 13 12 11 10 6M H z 22W * 0 .1 m F
DD
H T82M 98A
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. 2.00
4
October 31, 2006
HT82M98A
Package Information
18-pin DIP (300mil) Outline Dimensions
A 18 B 1 10 9
H C D E G F
a
I
Symbol A B C D E F G H I a
Dimensions in mil Min. 895 240 125 125 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. 915 260 135 145 20 70 3/4 315 375 15
Rev. 2.00
5
October 31, 2006
HT82M98A
20-pin DIP (300mil) Outline Dimensions
A 20 B 1 11 10
H C D E F 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. 2.00
6
October 31, 2006
HT82M98A
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) 5/F, Unit A, Productivity Building, Cross of Science M 3rd Road and Gaoxin M 2nd Road, Science Park, Nanshan District, Shenzhen, China 518057 Tel: 0755-8616-9908, 8616-9308 Fax: 0755-8616-9533 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 Holtek Semiconductor Inc. (Chengdu Sales Office) 709, Building 3, Champagne Plaza, No.97 Dongda Street, Chengdu, Sichuan, China 610016 Tel: 028-6653-6590 Fax: 028-6653-6591 Holmate Semiconductor, Inc. (North America Sales Office) 46729 Fremont Blvd., Fremont, CA 94538 Tel: 510-252-9880 Fax: 510-252-9885 http://www.holmate.com
Copyright O 2006 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. 2.00
7
October 31, 2006

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