EM83050H Ver la hoja de datos (PDF) - ELAN Microelectronics

Número de pieza

componentes Descripción

Fabricante

EM83050H

KEYBOARD ENCODER

ELAN Microelectronics 

Preliminary

EM83050H

KEYBOARD ENCODER

GENERAL DESCRIPTION

The EM83050H microcontroller is dedicated to a keyboard encoder ,specially designed for IBM PC XT/AT and

all compatible machines. The EM83050H controll all scan codes, three LEDs status, scan timing and

communications between the keyboard and PC. It is easy to implement a high performance, low cost keyboard

with the minimal external components.

FEATURES

• Low cost - eliminate need external components.

• Phantom key detects.

• RC oscillator ( 1.8432MHz ).

• Support scan code set 1 ,2 and 3.

• Support PC XT/AT and PS/2 keyboard .

• Low power CMOS device technology.

• Internal pull-up resistor.

• Tri-state outputs for easy board application.

• Built-in 4K ROM.

• Support WINDOWSTM 95, 98 keys.

• 101/104/107 keys or other special application keyboard encoder.

• WINDOWS is registered trademarks of Microsoft corperation.

APPLICATION

• IBM PC XT/AT or compatible machine keyboard.

• IBM PS/2 model 30,50,60,80 or compatible machine keyboard.

• Japanese keyboard.

• Korean keyboard.

• Brazil keyboard.

PIN ASSIGNMENTS

P91 6

P92 7

P93 8

P94 9

P95 10

P50 11

P51 12

P52 13

P53 14

P54 15

EM83050H

36 NUM

35 SCROLL

34 P67

33 P66

32 P65

31 P64

30 P63

29 P62

28 P61

27 P60

* This specification are subject to be changed without notice.

9.16.1999 1

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