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UT84520 Datasheet, PDF (1/13 Pages) Unisonic Technologies – PS/2 SCROLLING MOUSE CONTROLLER | |||
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UTC UT84520
PS/2 SCROLLING MOUSE CONTROLLER
DESCRIPTION
The UT84520 Scrolling Mouse Controller is specially
designed to control PS/2 mouse deviceï¼This single chip can
interface with three key-switches and 4X-Y photo-couples plus
Z-axis directly to 8042 controllerï¼
There are four types of Z-axis inputs used to implement
scrolling mouse functionalityï¼
FEATURES
*Using 50KΩ+5% resistor for RC oscillationï¼
*Compatible with legacy PS/2 mouseï¼
*Compatible with Microsoft PS/2 scrolling mouseï¼
*Built-in noise immunity circuitï¼
*The sampling rate of motion detector is up to 65KHzï¼
*Built-in three step dynamic input impedanceï¼
*Three key-switches and four photo-couples inputsï¼
*Photo couple test mode includedï¹
*Low power dissipationï¼
*Two types Z direction input:
1.Photo couples input
2.Mechanical input
CMOS IC
DIP-16
UTC UNISONIC TECHNOLOGIES CO., LTD. 1
QW-R502-004,A
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