ht82m21a Holtek Semiconductor Inc., ht82m21a Datasheet

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ht82m21a

Manufacturer Part Number
ht82m21a
Description
Ht82m21a -- 3-key 3d Usb+ps/2 Optical Mouse Controller
Manufacturer
Holtek Semiconductor Inc.
Datasheet

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Part Number
Manufacturer
Quantity
Price
Part Number:
HT82M21A
Manufacturer:
Holtek
Quantity:
10 000
Features
General Description
HT82M21A is a 3D mouse controller especially de-
signed 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
Rev. 1.40
Operating voltage: 4.4V~5.25V
Complete Universal Serial Bus specs V1.1
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
(optomechanical and mechanical)
Single chip solution especially for USB mouse
function
3-Key 3D USB+PS/2 Optical Mouse Controller
1
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 Univer-
sal Serial Bus Specification 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
and ADNS-2620
Pass WHQL, USB-IF and EMC testing
18-pin DIP package
HT82M21A
September 15, 2005

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ht82m21a Summary of contents

Page 1

... Single chip solution especially for USB mouse function General Description HT82M21A mouse controller especially de- signed for USB and PS/2 applications. The HT82M21A can support the USB Standard Request as well as HID Class Request version 1. compatible with Microsoft Intelli 3D PS/2 mouse. The Z-axis can support two kinds of scroller input, namely ...

Page 2

... 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. Rev. 1.40 Description +6V Storage Temperature ............................ 125 C SS +0.3V Operating Temperature........................... +0.3V 33O 2 HT82M21A September 15, 2005 ...

Page 3

... No load, system HALT 3 3.5 3.3V 2.8 5V 3.5 V =0. =4. =4. Test Conditions Min. Typ. V Conditions 6000 Power-up or wake-up 1024 form HALT 3 HT82M21A Ta=25 C Max. Unit 5. 250 3 Ta=25 C Max. Unit kHz t SYS September 15, 2005 ...

Page 4

... Application Circuits This Application Circuit is for Reference Only Note: Layout 0.1 F capacitor, 33 resistor and 0.01 F capacitor as close to VDD pin as possible. Rev. 1.40 HT82M21A 4 September 15, 2005 ...

Page 5

... Package Information 18-pin DIP (300mil) Outline Dimensions Symbol Min. A 895 B 240 C 125 D 125 295 I 335 0 Rev. 1.40 HT82M21A Dimensions in mil Nom. Max. 915 260 135 145 20 70 100 315 375 15 5 September 15, 2005 ...

Page 6

... 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 HT82M21A 6 September 15, 2005 ...

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