General Description
The TP8452 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. TP8452 can receive command and echo status or data format which are compatible with IBM PS/2 mode mouse.

FEATUREs
* Being compatible with PS/2 mouse mode.
* Including buyer testing mode.
* Auto speed with dynamic resolutions.
* Built-in noise immunity circuit.
* Low power dissipation.
* Both RC oscillating and crystal oscillating circuits provided.
* Three key-switches and four photo-couples inputs.
* Both key-press and key-release debounce interval 11 ms.
* Through three key-switch inputs, TP8452 can exert seven different output.
* PIN to PIN compatible with HM8450.
* Improved ESD protection.

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