UT84520 Datasheet (Unisonic Technologies) - PS/2 SCROLLING MOUSE CONTROLLER

UT84520, PS/2 SCROLLING MOUSE CONTROLLER

The UT84520 Scrolling Mouse Controller is specially designed to control PS/2 mouse device．This single chip can interface with three key-switches and 4X-Y photo-couples plus Z-axis directly to 8042 controller． There are four types of Z-axis inputs used to implement scrolling mouse functionality． CMO

UT84520 Features

* Using 50KΩ+5% resistor for RC oscillation．

* Compatible with legacy PS/2 mouse．

* Compatible with Microsoft PS/2 scrolling mouse．

* Built-in noise immunity circuit．

* The sampling rate of motion detector is up to 65KHz．

* Built-in three step dynamic input impedance． DIP-16