SC84520 데이터 시트보기 (PDF) - Silan Microelectronics

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SC84520

TWO IN ONE SCROLLING MOUSE CONTROLLER

Silan Microelectronics 

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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