HT82M21A 3-Key 3D USB+PS/2 Optical Mouse Controller Features · Operating voltage: 4.4V~5.25V · HALT function and wake-up feature reduce power consumption · Complete Universal Serial Bus specs V1.1 · Plug and Play functions compatibility · Serial Bus Interface Engine (SIE) · Minimal external components · USB transceiver · 6MHz crystal oscillator for system clock · Microsoft 3D Intelli mouse and IBM PS/2 mouse · Interface compliant with ADNS-2051, ADNS-2610 compatible and ADNS-2620 · Supports three buttons (R, M, L) and Z-axis input · Pass WHQL, USB-IF and EMC testing · Z-axis can support two kinds of scroller input · 18-pin DIP package (optomechanical and mechanical) · Single chip solution especially for USB mouse function General Description mechanical. It requires minimal external components to implement 3D USB plus PS/2 optical 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. HT82M21A is a 3D mouse controller especially designed for USB and PS/2 applications. The HT82M21A 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 Z-axis can support two kinds of scroller input, namely; optomechanical and Block Diagram U S B T r a n s c e iv e r U S B D + 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 R e g is te r S e t 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 September 15, 2005 HT82M21A Pin Assignment V S S 1 1 8 O S C 1 V 3 3 O 2 1 7 O S C 2 U S B D + /C L K 3 1 6 V D D U S B D -/D A T A 4 1 5 L E D R E S E T 5 1 4 M S E L 1 6 1 3 R S D IO 7 1 2 L S C L K 8 1 1 Z 2 S E L 0 9 1 0 Z 1 H T 8 2 M 2 1 A 1 8 D IP -A Pin Description Pin No. Pin Name I/O Description ¾ Negative power supply, ground 1 VSS 2 V33O O 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 5 RESET 3.3V voltage output I Chip reset input, low active I Configuration selections SEL1=0: Z-axis is divided by 2 (default) SEL1=1: Z-axis is divided by 4 For ADNS 2051: SEL0=0: 800DPI (default) SEL0=1: 400DPI For ADNS 2610/2620: SEL0=0, 400DPI (default) SEL0=1, 800DPI-by firmware 6 9 SEL1 SEL0 7 SDIO 8 SCLK I Serial data for Agilent sensor IC SCLK 10, 11 Z1, Z2 I Z-axis input supports two kinds of scroller input; optomechanical and mechanical. I Input ports with pull-high resistor. These pads can function as Left, Right, Middle. 12, 13, 14 L, R, M I/O Serial data for Agilent sensor IC SDIO 15 LED I/O Drives LED output 16 VDD ¾ 5V positive power supply 17 OSC2 O 6MHz OSC output 18 OSC1 I 6MHz OSC input Absolute Maximum Ratings Supply Voltage ..............................VSS-0.3V to VSS+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 September 15, 2005 HT82M21A D.C. Characteristics Symbol Ta=25°C Test Conditions Parameter VDD Conditions Min. Typ. Max. Unit VDD Operating Voltage ¾ ¾ 4.4 ¾ 5.25 V IDD Operating Current (Crystal OSC) 5V USB mode No load, fSYS=6MHz PS/2 mode ¾ 10 ¾ mA ¾ 3 ¾ mA No load, system HALT ¾ ¾ 250 mA ¾ 1.0 V ISTB Standby Current 5V VIL1 Input Low Voltage for I/O Ports 5V ¾ 0 VIH1 Input High Voltage for MCU I/O Ports 5V ¾ 3.5 ¾ 5 V VIL2 Input Low Voltage (RESET) 5V ¾ 0 ¾ 1.5 V VIH2 Input High Voltage (RESET) 5V ¾ 3.5 ¾ 5 V VIH3 Input High Voltage for USB I/O Ports 3.3V ¾ 2.8 ¾ 3.6 V VPOR Power on Reset VDD Detection Voltage 5V ¾ 3.5 ¾ 3.9 V IOL1 Output Port Sink Current 5V VOL=0.5V ¾ 4 ¾ mA IOH1 Output Port Source Current 5V VOL=4.5V ¾ -4 ¾ mA IOL2 Output Port Sink Current (LED) 5V VOL=4.5V ¾ 50 ¾ mA A.C. Characteristics Symbol fSYS tOST Ta=25°C Test Conditions Parameter Conditions VDD System Clock (Crystal OSC) ¾ 5V Power-up or wake-up form HALT ¾ Oscillation Start-up Timer Period Min. Typ. Max. Unit 0 6000 ¾ kHz ¾ 1024 ¾ tSYS Note: tSYS=1/fSYS Timing Diagram Z-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 > 2 .5 m s Z-axis Counting Z 1 Z 2 + 1 Rev. 1.40 + 1 -1 3 -1 September 15, 2005 HT82M21A Application Circuits This Application Circuit is for Reference Only V 2 1 0 m F U S B 4 3 3 W 1 5 k W 3 5 k W S W 1 0 .0 1 m F V S S V 3 3 O U S B D + /C L K U S B D - /D A T A 2 4 5 S W 2 R E S E S D S C S E 6 7 S D IO S C L K 8 9 O S C O S C V D L E 1 5 k W 1 6 D 1 4 L Z 2 Z 1 9 O S C _ IN O S C _ O U T X B X A Y B Y A 3 2 1 2 4 1 1 5 1 0 H T 8 2 M 2 1 A V D D R _ B IN 1 1 0 .1 m F 1 3 R 1 4 1 8 .4 3 2 M H z 1 5 D 0 .1 m F 1 3 B 1 7 2 M S E T L 1 IO L K L 0 A 1 8 1 0 .1 m F C 1 k W V S S 3 3 0 k W U S B + D D 1 V D D 7 R E F A R E F B X Y _ L E D P D S D IO S C L K G N D G N D 2 .2 m F 8 0 W 6 1 5 1 6 1 1 2 S D IO S C L K 1 0 A D N S 2 0 5 1 1 0 0 k W 1 0 k W M B 0 .1 m F N o te : 0 .1 m F R B 3 3 W L B 6 M H z S W S W S W S W 1 = 1 = 2 = 2 = o p c lo o p c lo e n s e e n s e : 8 : 4 : Z : Z 0 0 D P I ( d e fa u lt) 0 0 D P I /2 ( d e fa u lt) /4 3 3 W 1 .5 k W V V D D 2 1 0 m F 5 k W S W 1 S W 2 0 .0 1 m F 4 3 3 W 3 V S S V 3 3 O U S B D + /C L K U S B D - /D A T A 2 4 5 6 7 S D IO S C L K 8 9 R E S E S D S C S E S E T L 1 IO L K L 0 O S O S V L C 1 C 2 D D E D M R L Z 2 Z 1 0 .1 m F C 1 k W 3 1 5 k W D D 3 0 k W V S S 3 0 p F 1 U S B U S B + 1 M W 3 0 p F 3 3 p F 3 3 p F A 1 8 1 0 0 W 1 0 0 k W 7 B V D D 1 7 1 k W 5 X Y _ L E D 1 6 1 5 2 4 M H z 1 4 1 0 .1 m F 1 3 2 1 2 6 1 1 1 0 O S C _ IN S D IO O S C _ O U T S C L K R E F A G N D 3 S D IO 4 S C L K 8 2 .2 m F H T 8 2 M 2 1 A A D N S 2 6 1 0 1 0 0 k W 1 0 k W M B 0 .1 m F N o te : 0 .1 m F R B 3 3 W L B 6 M H z S W S W S W S W 1 = 1 = 2 = 2 = o p c lo o p c lo e n s e e n s e : 4 : 8 : Z : Z 0 0 D P I ( d e fa u lt) 0 0 D P I- b y fir m w a r e /2 ( d e fa u lt) /4 3 3 W 1 .5 k W 3 3 p F Note: 3 3 p F 3 0 p F 1 M W 3 0 p F Layout 0.1mF capacitor, 33W resistor and 0.01mF capacitor as close to VDD pin as possible. Rev. 1.40 4 September 15, 2005 HT82M21A Package Information 18-pin DIP (300mil) Outline Dimensions A B 1 8 1 0 1 9 H C D E a G I F Symbol Rev. 1.40 Dimensions in mil Min. Nom. Max. A 895 ¾ 915 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 September 15, 2005 HT82M21A 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 (China) Inc. (Dongguan Sales Office) Building No. 10, Xinzhu Court, (No. 1 Headquarters), 4 Cuizhu Road, Songshan Lake, Dongguan, China 523808 Tel: 86-769-2626-1300 Fax: 86-769-2626-1311 Holtek Semiconductor (USA), Inc. (North America Sales Office) 46729 Fremont Blvd., Fremont, CA 94538 Tel: 1-510-252-9880 Fax: 1-510-252-9885 http://www.holtek.com Copyright Ó 2005 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 September 15, 2005