View HT82M21A_779540.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

HT82M21A
3-Key 3D USB+PS/2 Optical Mouse Controller
Features
* Operating voltage: 4.4V~5.25V * Complete Universal Serial Bus specs V1.1 * HALT function and wake-up feature reduce power
consumption
* Plug and Play functions * Minimal external components * 6MHz crystal oscillator for system clock * Interface compliant with ADNS-2051, ADNS-2610
compatibility
* Serial Bus Interface Engine (SIE) * USB transceiver * Microsoft 3D Intelli mouse and IBM PS/2 mouse
compatible
* Supports three buttons (R, M, L) and Z-axis input * Z-axis can support two kinds of scroller input
and ADNS-2620
* Pass WHQL, USB-IF and EMC testing * 18-pin DIP package
(optomechanical and mechanical)
* Single chip solution especially for USB mouse
function
General Description
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 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.
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. 1.10
1
August 4, 2004
HT82M21A
Pin Assignment
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 SEL1 S D IO SC LK SEL0 18 17 16 15 14 13 12 11 10 L Z2 Z1 R OSC1 OSC2 VDD LED M
HT82M 21A 1 8 D IP -A
Pin Description
Pin No. 1 2 3 4 5 Pin Name VSS V33O USBD+/CLK USBD-/DATA RESET I/O 3/4 Negative power supply, ground O 3.3V voltage output 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 I Chip reset input, low active Configuration selections For ANDS 2051: SEL0=0: 800DPI (default) SEL0=1: 400DPI SEL1=0: Z-axis is divided by 2 (default) SEL1=1: Z-axis is divided by 4 For ANDS 2610/2620: SEL1=0, SEL0=don't care: Z-axis is divided by 2 (default) SEL1=1, SEL0=0: Z-axis is divided by 4 Description
6 9
SEL1 SEL0
I
7 8 10, 11
SDIO SCLK Z1, Z2
I/O Serial data for Agilent sensor IC SDIO I I I Serial data for Agilent sensor IC SCLK 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.
12, 13, 14 L, R, M 15 16 17 18 LED VDD OSC2 OSC1
I/O Drives LED output 3/4 5V positive power supply O I 6MHz OSC output 6MHz OSC input
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. 1.10
2
August 4, 2004
HT82M21A
D.C. Characteristics
Symbol VDD IDD ISTB VIL1 VIH1 VIL2 VIH2 VIH3 VPOR IOL1 IOH1 IOL2 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) Test Conditions VDD 3/4 5V 5V 5V 5V 5V 5V 3.3V 5V 5V 5V 5V VOL=0.5V VOL=4.5V VOL=4.5V Conditions 3/4 USB mode No load, fSYS=6MHz PS/2 mode No load, system HALT 3/4 3/4 3/4 3/4 3/4 3/4 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 Typ. 3/4 10 3 3/4 3/4 3/4 3/4 3/4 3/4 3/4 4 -4 50 Max. 5.25 3/4 3/4 250 1.0 5 1.5 5 3.6 3.9 3/4 3/4 3/4 Ta=25C Unit V mA mA mA V V V V V V mA mA mA
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
Z-axis Photo-Coupler Crossed Width
Z1 Z2 tr N o te : F o r Z - a x is tr, tP , tf > 1 m s tP tf
Z-axis Counting
Z1 Z2 +1 +1 -1 -1
Rev. 1.10
3
August 4, 2004
HT82M21A
Application Circuits
This Application Circuit is for Reference Only
V VDD USBUSB+ VSS 4 1 5kW SW 1 5kW SW 2 6 7 8 9 S D IO SC LK 3 4 5 2 18 1 2 D D M R L Z2 Z1 17 16 15 14 13 12 11 10 100kW 10kW MB 0 .1 m F 33W 33W 1 .5 k W 33pF 33pF 30pF 1M W 30pF RB LB 6M H z 0 .1 m F N o te : SW SW SW SW 1= 1= 2= 2= op c lo op c lo en se en se :8 :4 :Z :Z 0 0 d p i ( d e fa u lt) 00dpi /2 ( d e fa u lt) /4 5 4 0 .1 m F 3 2 1 10mF 0 .0 1 m F 33W C 30kW 1kW 0 .1 m F
DD
VSS V33O U S B D + /C L K U S B D - /D A T A RE SE SD SC SE SET L1 IO LK L0 H T82M 21A
OSC OSC VD LE
A
B
13 15kW 1 8 .4 3 2 M H z 9 11 3 2 14 R _ B IN VDD REFA REFB XY_LED PD S D IO SC LK GND GND 8 6 15 16 1 12 10 7
0 .1 m F 2 .2 m F 0W
O S C _ IN O SC_O UT XB XA YB YA
S D IO SC LK
ADNS2051
V VDD USBUSB+ VSS 4 1 5kW SW 1 5kW SW 2 6 7 8 9 S D IO SC LK 3 4 5 2 3 2 1 10mF
DD
0 .0 1 m F 33W 18 17 16 15 14 13 12 11 10 100kW 10kW MB 0 .1 m F 6M H z 0 .1 m F C 30kW 1kW A
0 .1 m F 100W 7 B VDD XY_LED 24M Hz 1 2 6 O S C _ IN O SC_O UT GND ADNS2610 S D IO SC LK REFA 8 2 .2 m F 4 3 5 100kW 1kW
VSS V33O U S B D + /C L K U S B D - /D A T A RE SE SD SC SE SET L1 IO LK L0 H T82M 21A
OS OS V L
C1 C2 DD ED M R L Z2 Z1
S D IO SC LK
N o te :
0 .1 m F
33W 33W 1 .5 k W 33pF 33pF
RB LB
( S W 2 = o p e n , S W 1 = X ) : Z /2 ( d e fa u lt) ( S W 2 = c lo s e , S W 1 = o p e n ) : Z /4
30pF
1M W
30pF
Note:
Layout 0.1mF capacitor, 33W resistor and 0.01mF capacitor as close to VDD pin as possible.
Rev. 1.10
4
August 4, 2004
HT82M21A
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. 1.10
5
August 4, 2004
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 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 2004 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. 1.10
6
August 4, 2004

▲Up To Search▲

Price & Availability of HT82M21A

	To Download HT82M21A Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .