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ht82m39a 3d ps/2 mouse controller pin assignment pin description pin no. pin name i/o description 1, 2 z1, z2 i z axis input supports two kinds of scroller input; optomechanical and mechanical. 3 vdd positive power supply 4nc no connection 5 vss negative power supply, ground 6 osci i 2mhz rc oscillator for system frequency with external pull-high resistor and built-in c 7 clk i/o clk i/o : ps/2 mouse clk line. nmos open drain output with 5k pull-high resis - tor. 8 data i/o data i/o : ps/2 mouse data line. nmos open drain output with 5k pull-high resistor. 9~11 rb, ro, lb i right button: normal pull-low (50k ), pressing the button connects to high. rolling button: normal pull-low (50k ), pressing the button connects to high. left button: normal pull-low (50k ), pressing the button connects to high. 12 test i for ic manufacture testing, user should leave it floating. 13~16 x1, x2, y1, y2 i x/y axis photo input with built-in holtek s special dynamic photo input resistor rev. 1.20 1 august 20, 2002 feature microsoft intelli 3d ps/2 and ibm ps/2 mouse com - patible supports rolling buttons in ps/2 mouse mode x/y axis photo input with built-in holtek s special dy - namic photo-input resistor supports three buttons and three axis (x, y, z) in - puts z axis can support two kinds of scroller input (optomechanical and mechanical) 2mhz rc oscillator for system frequency with an ex - ternal pull-high resistor 16-pin dip package general description the ht82m39a is a plug and play ps/2 3d mouse con - troller. it is compatible with microsoft intelli 3d ps/2 mouse. the z axis can support two kinds of scroller input, namely; optomechanical and mechanical.

absolute maximum ratings supply voltage ......................................... 0.3v to 6.5v storage temperature ............................ 50 cto125 c input voltage..............................v ss 0.3v to v dd +0.3v operating temperature........................... 25 cto70 c 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 reliabil - ity. electrical characteristics ta=25 c symbol parameter test conditions min. typ. max. unit v dd conditions v dd operating voltage 4.75 5.0 5.25 v i op operating current 5v r osc =120k 15 ma f osc rc oscillator 5v r osc =120k 1.6 2 2.2 v v il1 input low voltage (z1, z2) 5v 0 1.5 v v ih1 input high voltage (z1, z2) 5v 2.2 5v v il2 input low voltage (clk, data) 5v 0 0.8 v v ih2 input high voltage (clk, data) 5v 2.0 5.0 v r ph2 pull-high resistor (clk, data) 5v v il =0v 2510 k isink sink current (clk, data) 5v v oh =0.4v 4 ma v il3 input low voltage (rb, ro, lb) 5v 0 1.0 v v ih3 input high voltage (rb, ro, lb) 5v 1.8 5v r pl3 pull-low resistor (rb, ro, lb) 5v v il =0v 3.0 60 125 k v il4 input low voltage (x1,x2,y1,y2) 5v 0 1.5 v v ih4 input high voltage (x1, x2, y1, y2) 5v 2.2 5v r pl5 dynamic photo-resistor (x1, x2, y1, y2, z1, z2) 5v see dynamic resistor charac - teristics dynamic resistor characteristics r-v curve ht82m39a rev. 1.20 2 august 20, 2002 photo_r: r-v v r
ht82m39a rev. 1.20 3 august 20, 2002 functional description ps/2 mouse ps/2 status byte byte 1 bit 7: reserved 6: 0=stream mode, 1=remote mode 5: 0=disabled, 1=enabled 4: 0=scaling 1:1, 1=scaling 2:1 3: 1=wrap mode, 0=stream or remote (different from ibm specs.) 2: 1=left button pressed 1: 1=middle button pressed 0: 1=right button pressed byte 2 bit 0~7 current resolution setting (bit 0=lsb) byte 3 bit 0~7 current sampling rate (bit 0=lsb) standard ps/2 data format variable rps, 0, 8, 1, bidirectional, synchronous bit no. 7 6 5 4 3 2 1 0 1st word yv xv ys xs 1 m r l 2nd word x7 x6 x5 x4 x3 x2 x1 x0 3rd word y7 y6 y5 y4 y3 y2 y1 y0 data format for 3d ps/2 variable rps, 0, 8, 1, bidirectional, synchronous bitno. 7 6 543210 1st word yv xv ys xs 1 ro r l 2nd word x7 x6 x5 x4 x3 x2 x1 x0 3rd word y7 y6 y5 y4 y3 y2 y1 y0 4th word z7 z6 z5 z4 z3 z2 z1 z0 the x/y data report is 9-bit 2 s complement the z data report is 8-bit 2 s complement x movement towards the right is positive, moving to - wards the left is negative y upward movement is positive, moving down is nega - tive z rolling towards the user is positive, else negative button status: 1=pressed, 0=released mouse mode changes between standard and 3d ps/2 mode sending the commands in the following sequence will set the mouse to 3d ps/2 mode. command response from mouse f3h fah c8h fah f3h fah 64h fah f3h fah 50h fah f2h fah, 03h any time the pc sends a reset ffh command to the mouse, it will reset the mouse to standard ps/2 mode. after power-on reset is initiated, the mouse is set to standard ps/2 mode.
timing diagrams x, y axis photo-coupler crossed width x/y/z axis counting ht82m39a rev. 1.20 4 august 20, 2002 ! " # $ % & # ' ( ) * + , ' " ' ! - , & # ( ) * + , ' " ' ! - . , / / / / ( ( ( ( / / ( (
ps/2 mouse data output data input ht82m39a rev. 1.20 5 august 20, 2002 0 1 2 + 3 + 1 4 2 2 ) + + 5 ) + 6 + # " +
7 ) + # 1 ' 8 # 9
7 ) + # 1 ' 2 + : 2 + . $ ! # . 8 # 9 # 2 + : 2 ) 1 , + + # 1 # + . $ 9 2 $ 1 ; < , ) . " 8 $ , 8 + 1 $ , 2
0 , $ = 0 , $ = 0 , $ = , 1 4 2 2 ) + + 5 ) + 6 + # " + ) 1 , + + # 1 # 2 $ ! ) 8 8 + 1 : $ 4 : $ # ! + , + 1 : $ 4 : $ # ! # ) 1 , + + # 1 1 ) = + > $ 7 ) + # 1 = + > $ 7 ) + # 1 ; + 1 + . 7 . + . $ # + 1 2 + 3 + ; < ) ! $ = 8 # = ? ; ) * + . 7 . + . $ # + 1 2 + 3 + ; < ) ! $ = 8 # = ? # $ 1 , 7 $ ; < 4 # $ , 1 # , ) ) 1 # 2 $ ) 1 , . + , , + # 1 0 , $ = 0 ( , $ = 0 , $ = 0 , $ = @ , $ = - , $ =
application circuits ht82m39a z axis optomechanical (this application circuit is for reference only) ht82m39a z axis mechanical (this application circuit is for reference only) note: r depends on ir characteristics, r=1k for reference only ht82m39a rev. 1.20 6 august 20, 2002 #
a & ? #
a & ? ( ) * + , ; $ = 2 1 + = ) 8 $ 1 = # 4 $
package information 16-pin dip (300mil) outline dimensions symbol dimensions in mil min. nom. max. a 745 775 b 240 260 c 125 135 d 125 145 e16 20 f50 70 g 100 h 295 315 i 335 375 0 15 ht82m39a rev. 1.20 7 august 20, 2002
& b c
ht82m39a rev. 1.20 8 august 20, 2002 copyright
2002 by holtek semiconductor inc. the information appearing in this data sheet is believed to be accurate at the time of publication. however, holtek as - sumes 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 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. holtek semiconductor inc. (headquarters) no.3, creation rd. ii, science-based industrial park, hsinchu, taiwan tel: 886-3-563-1999 fax: 886-3-563-1189 http://www.holtek.com.tw holtek semiconductor inc. (sales office) 11f, no.576, sec.7 chung hsiao e. rd., taipei, taiwan tel: 886-2-2782-9635 fax: 886-2-2782-9636 fax: 886-2-2782-7128 (international sales hotline) holtek semiconductor (shanghai) inc. 7th floor, building 2, no.889, yi shan rd., shanghai, china tel: 021-6485-5560 fax: 021-6485-0313 http://www.holtek.com.cn holtek semiconductor (hong kong) ltd. rm.711, tower 2, cheung sha wan plaza, 833 cheung sha wan rd., kowloon, hong kong tel: 852-2-745-8288 fax: 852-2-742-8657 holmate semiconductor, inc. 48531 warm springs boulevard, suite 413, fremont, ca 94539 tel: 510-252-9880 fax: 510-252-9885 http://www.holmate.com

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