HT82M98A -- 3-Key 3D USB+PS/2 Mouse Controller

General Description

HT82M98A is a 3D mouse controller especially designed for USB and PS/2 applications. The HT82M98A can support the USB Standard Request as well as HID Class Request version 1.1 draft 4. It is compatible with Microsoft Intelli 3D PS/2 mouse. The X/Y axis photo input with built-in Holtek's special dynamic photo-input resistor and 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 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.

Features

  • 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 three axes (X, Y, Z) input
  • Z axis can only support encoder which divided by 2
  • 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
  • 18/20-pin DIP package

Technical Document

Other Information