General Specification
The TP8472 3D Mouse Controller is specially designed to control 3D PS/2 mouse device. This single chip can interface three key-switches and six photo-couples direct to 8042. TP8472 can receive command and echo status or data format which are compatible with IBM PS/2 mode mouse and Microsoft 3D PS2 mouse.Key debouncing circuit is provided to prevent false entry and improve TP8472 accuracy.

FEATUREs
* Being compatible with 2D & 3D mouse mode.
* Including buyer testing mode.
* Built-in noise immunity circuit.
* Low power dissipation.
* Clocked by RC oscillating circuit or external oscillator.
* Three key-switches and six photo-couples inputs.
* Both key-press and key-release debounce interval 11 ms.
* Through three key-switch inputs, TP8472 can exert seven different output.
* Improved ESD protection.
* Built-in auto-reference function.

APPLICATIONs
* Optical mouse or pen-mouse.
* Mechanical mouse or pen-mouse.
* Optomechanical mouse or pen-mouse.
* Mechanical track ball.
* Optomechanical track ball.