Silan Semiconductors
SC84520
TWO IN ONE SCROLLING MOUSE CONTROLLER
DESCRIPTION
The SC84520 Scrolling Mouse Controller id specially designed to control serial mouse or PS/2 mouse device.
This single chip can interface three key-switched and 4 X-Y photo-couples plus Z-axis directly plus Z-axis directly to RS-232C or 8042 controller.
There are four types Z-axis inputs used to implement scrolling mouse functionality.
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...