EM83807 Просмотр технического описания (PDF) - ELAN Microelectronics

Номер в каталоге

Компоненты Описание

производитель

EM83807

ALL-IN-ONE PLUG & PLAY 3-BUTTON SERIAL MOUSE CONTROLLER

ELAN Microelectronics 

EM83807

ALL-IN-ONE PLUG & PLAY 3-BUTTON SERIAL MOUSE CONTROLLER

Preliminary

GENERAL DESCRIPTION

The EM83807 Mouse Controller is specially designed to control serial mouse device.

This single chip can interface three key-switches and 4 X-Y photo-couples directly to RS-232C.

FEATURES

• Include PnP software scrolling function

• Using 50kΩ ±1% resistor for RC oscillation.

• Compatible with Microsoft serial mouse.

• 100 bytes PnP ID code could be filled by code layer.

• Built-in noise immunity circuit.

• The sampiling rate of motion detector is up to 65KHz.

• 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-couples inputs.

• RTS debouncing circuit included.

• Photo couple test mode included.

• Low power dissipation.

APPLICATION

• Serial PnP mouse.

PIN ASSIGNMENT

EM83807

VDD

1

OSC.OUT 2

NC 3

NC 4

RTS 5

RXD 6

OPT 7

VSS 8

16 OSCR

15 Y2

14 Y1

13 X2

12 X1

11 L

10 M

9R

* This specification is subject to be changed without notice.

9.3.1999 1

Share Link: