General Description
The HT82M30A is designed as 2D, 3D 3/5-key PS/2 optical mouse controller. These have serial interface to access the Agilent sensor H2051, H2610, H2620 or the same compatible series sensor. Refer to the datasheets for detailed register descriptions of the Agilent sensors.

FEATURE
  Operating voltage: 4.0V~5.5V
  Microsoft Intelli 3D PS/2 and IBM PS/2 mouse compatible
  Microsoft Windows 2000 and 5-button Wheel mouse compatible
  Z-axis can support three kinds of scroller input divided by 2 or 4 (only for H2610 and H2620)
  Supports 400 or 800 DPI for H2051
  Serial interface with H2051, H2610, H2620
  Auto detect as to which photo sensor is used
  2MHz RC oscillator for system frequency with external pull-high resistor (140kΩ)
  16/18-pin DIP package