Datasheet > SC84510

SC84510

更新时间： 2024-01-28 07:51:47

品牌	Logo	应用领域
士兰微 - SILAN		/
页数	文件大小	规格书
17页	178K
描述
PS/2 SCROLLING MOUSE CONTROLIER

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SC84510 数据手册

Silan

Semiconductors_ꢀ

SC84510

ꢀ

PS/2 SCROLLING MOUSE

CONTROLIER

DESCRIPTION

The SC84510 Scrolling Mouse Controller is specially designed to

control PS/2 mouse device. This single chip can interface three key-

switches four photo-couples plus x-axis direct to 8042 controller.

SC84510 can receive command and echo status or data format

which are compatible with IBM PS/2 mode mouse.

Key debouncing circuit is provided to prevent false entry and

improve the accuracy.

In the traditional mouse, a great number of noises are generated

when the grid is partially closed or opened. These noises are usually

mistaken for movement signals by traditional mouse controller and

the cursor of the display screen is thus moved frequently up and

down or back and forth. This will consume a great amount of energy.

The SC84510 mouse controller provides noise immunity circuits to

eliminate these noises in order to reduce energy consumption.

DIP-16

ꢀ

FEATURES

* Low power dissipation.

* Using 50k ±5% resistor for RC oscillation.

* Compatible with legacy PS/2 mouse.

* Six types Z direction input:

1. Photo couples input. (Z/1)

2. Key-switches input.

* Compatible with Microsoft scrolling mouse.

* Built-in noise immunity circuit.

3. Voltage-sensing input.

4. Mechanical input. (Z/1)

5. Photo couples input. (Z/4)

6. Mechanical input. (Z/2)

* Built-in current comparator for photo-couples input.

* Built-in three steps dynamic input impedance.

* Three key-switches and four photo-couples inputs.

* Both key-press and key-release debounce interval 12 ms.

* The sampling rate of motion detector is about 65KHz.

ORDERING INFORMATION

SC84510AP

SC84510BP

SC84510CP

SC84510DP

SC84510EP

SC84510FP

DIP-16 Package, Photo couples input. (Z/1)

DIP-16 Package, Key-switches input.

DIP-16 Package, Voltage-sensing input.

DIP-16 Package, Mechanical input. (Z/1)

DIP-16 Package, Photo couples input. (Z/4)

DIP-16 Package, Mechanical input. (Z/2)

HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD

ꢀ

Rev: 1.0

2000.12.31ꢀ

12 3 4 5 6 7...17

中文翻译

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