General Description
The HT82M35X are designed as 3/5-key 3D PS/2 optical mouse controller. These have serial interface to access the sensor ADNS-5020 or the same compatible series sensor. Refer to the datasheets for detailed register descriptions of the sensors.

FEATURE
• Operating voltage: 4.0V~5.5V
• Microsoft 3D Intelli mouse and IBM PS/2 mouse compatible
• Microsoft Windows 2000 and 5-button Wheel mouse compatible
• Z-axis can support two kinds of scroller input divided by 2 or 4 (package option)
• Supports 500 or 1000 DPI for ADNS-5020 (package option)
• Serial interface with ADNS-5020
• Auto detect as to which photo sensor is used
• 2MHz RC oscillator for system frequency with external pull-high resistor (140kΩ)
• Interface compliant with ADNS-5020
• 16-pin DIP package