EM84520 - 2-IN-ONE SCROLLING MOUSE CONTROLLER
The EM84520 Scrolling Mouse Controller is specially designed to control serial mouse or PS/2 mouse device.
This single chip can interface three key-switches and 4 X-Y photo-couples plus Z-axis directly to RS-232C or 8042 controller.
There are four types Z-axis inputs used to implement scrolling mous
EM84520 Features
* Using 50kΩ ±1% resistor for RC oscillation. Compatible with legacy PS/2 mouse. Compatible with Microsoft serial scrolling mouse. Compatible with Microsoft PS/2 scrolling mouse. Serial or PS/2 port auto-detect. 100 bytes PnP ID code could be filled by code layer. Built-in noise immunity circuit. The
