Holtek Semiconductor HT82M28A
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.FEATURES
● Operating voltage: 4.4V~5.25V● Compatible with Microsoft Windows 2000 and
● USB transceiver
● Single chip solution especially for USB mouse func- 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- 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 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) P3101
● Pass USB-IF and EMC testing
● 20-pin DIP/SOP package
GENERAL DESCRIPTION
It requires minimal external components to implement 3D and Windows 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.