HT82M28A datasheet(1/15 Pages) HOLTEK

Part #	HT82M28A

Description	3/5-Key USB Vista Tilt Optical Mouse Controller

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Manufacturer	HOLTEK [Holtek Semiconductor Inc]

Direct Link	http://www.holtek.com

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HT82M28A

3/5-Key USB Vista Tilt Optical Mouse Controller

Block Diagram

Rev. 1.00

1

July 20, 2007

Features

· Operating voltage: 4.4V~5.25V

· Compatible with Microsoft Windows 2000 and

5-button Wheel Mouse

· Supports 5/7 buttons and Z-axis input

· Z-axis can support only encoder Z/2 scroller input

· Complete Universal Serial Bus specs V2.0 compati-

bility

· Vista tilt mouse protocol supported

· 3 key or 5 key mode can be selected by circuit

· DPI can be selected high or low by circuit

· Tilt or Non-tilt protocol can be selected by circuit

· Serial Bus Interface Engine (SIE)

· USB transceiver

· Single chip solution especially for USB mouse func-

tion

· 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 A2610, A2620, A5020, and

P3101

· Pass USB-IF and EMC testing

· 20-pin DIP/SOP package

General Description

HT82M28A is a Plug and Play 3D USB Mouse controller.

The HT82M28A can support the USB Standard Request

as well as HID Class Request version 1.1. The Z-axis

can support only Z/2 encoder scroller input. It requires

minimal external components to implement 3D and Win-

dows Vista 7 key USB mouse. All its features combined

and make up this versatile Holtek 8-bit MCU with an

on-chip USB interface logic. The USB is specified by

the Universal Serial Bus Specification V2.0.

The USB product ID of 5 key mode is 2083H, and the

USB product ID of 3 key mode is 2082H.

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I n t e r f a c e E n g i n e

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a n d

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F I F O s ´ 2

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U S B D -

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V D D

V S S

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HT82M28A Datasheet(PDF) 1 Page - Holtek Semiconductor Inc

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