HT82M39A(1999) Datasheet PDF - Holtek Semiconductor

General Description
The HT82M39A is a Plug and Play PS/2 3D mouse controller. It is compatible with Microsoft Intelli 3D PS/2 mouse. The Z axis can support two kinds of scroller input, namely; optomechanical and mechanical.

FEATURE
• Microsoft Intelli 3D PS/2 and IBM PS/2 mouse compatible
• Supports rolling buttons in PS/2 mouse mode
• X/Y axis photo input with built-in Holteks special dynamic photo-input resistor
• Supports three buttons and three axis (X, Y, Z) inputs
• Z axis can support two kinds of scroller input (optomechanical and mechanical)
• 2MHz RC oscillator for system frequency with an external pull-high resistor
• 16-pin DIP