General Description
These devices are Plug and Play Windows 2000 and 5-button 3D USB+PS/2 Mouse controllers. Fully supporting the USB standard request as well as HID Class Request version 1.1, they are compatible with Microsoft Intelli 3D or Windows 2000 5 key PS/2 mouse. The Z-axis can support two kinds of scroller input, both optomechanical and mechanical. The devices require a minimum of external components to implement a 3D or Windows 2000 5 key USB plus PS/2 mouse. All of the device features in combination provide a versatile Holtek MCU with fully integrated USB interface logic. The USB is specified by the Universal Serial Bus Specification V2.0.

Features
• Operating voltage: 4.4V~5.25V
• Compatible with Microsoft Windows 2000 and 5-button Wheel Mouse
• Microsoft 3D Intelli mouse and IBM PS/2 mouse compatible
• Supports 3/5 buttons and Z-axis input
• Z-axis can support two kinds of scroller input
   - optomechanical and mechanical
• 3 key or 5 key mode can be selected by package
• Complete Universal Serial Bus spec. V2.0 compatibility
• Serial Bus Interface Engine (SIE)
• USB transceiver
• Single chip solution especially for USB mouse function
• Power down function and wake-up feature reduce power consumption
• Plug and Play functions
• Minimal external components
• 6MHz crystal system clock oscillator
• Interface compliant with ADNS-5020
• Passed WHQL, USB-IF and EMC testing
• Range of packaging types