SC84520 Datasheet, PDF (1/19 Pages) List of Unclassifed Manufacturers – TWO IN ONE SCROLLING MOUSE CONTROLLER

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-in noise immunity circuit
*The sampling rate of motion detector is up to 65 kHz
*Built-in three zener diodes : one in VDD to VSS, two in RTS to VDD
*CMOS push-pull RXD output
*Built-in current comparator for photo-couples input
*Built-in three step dynamic input impedance
*Three key-switches and four photo-coupled inputs
*RTS debouncing circuit include
*Photo couple test mode include
*Low power dissipation
*Six types Z direction input:
1. Photo couples input (Z/1)
2. Key-switches input
3. Voltage-sensing input
4. Mechanical input(Z/1)
5. Photo couples input (Z/4)
6. Mechanical input (Z/2)
DIP-16
*Package type:
SC84510AP: 16DIP, Photo coupled
input(Z/1)
SC84510BP: 16DIP, Key-switches input
SC84510CP: 16DIP, Voltage-sensing
Input
SC84510DP: 16DIP, Mechanical input
(Z/1)
SC84510EP: 16DIP, Photo couples input
(Z/4)
SC84510FP: 16DIP, Mechanical input
(Z/2)
APPLICATIONS
*Serial PnP scrolling mouse
*PS/2 scrolling mouse
*Combo PnP scrolling mouse
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 1.0 2000.12.31
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