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HT82M28A -- 3/5-Key USB Vista Tilt Optical
Mouse Controller
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 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. 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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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
compatibility
- 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
function
- 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
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