Mouse & Keyboard Controller  
Part No. Features VCC Package
PD(mW)
UT84520 PS/2 Scrolling Mouse Controller

*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
*Three key-switches and four photo-couples inputs
*Photo couple test mode included
*Low power dissipation
*Two types Z direction input:
1.Photo couples input
2.Mechanical input
4.5V ~ 5.5V DIP-16 SOP-16
500mW
*: Under  Development