DESCRIPTION
The SC84502 Mouse Controller is specially designed to control PS/2 mouse device. This single chip can interface three key switches and four photo-couples direct to 8042. SC84502 can receive command and echo status or data format which are compatible with IBM PS/2 mode mouse. Key debouncing circuit is provided to prevent false entry and improve the accuracy.

FEATURES
* Being compatible with PS/2 mouse mode
* Built-in noise immunity circuit
* Low power dissipation
* RC oscillation
* Three key-switches and four photo-couples inputs
* Both key-press and key-release debounce interval 12ms
* Through three key-switches input, SC84502 can exert seven different output
* The motion detector of the SC84502 could sense 8m/sec maximum with 200 DPI wheels

APPLICATIONS
* Optical mouse or pen-mouse
* Mechanical mouse or pen-mouse
* Optomechanical mouse or pen-mouse
* Mechanical track ball
* Optomechanical track ball