HT82K28A datasheet(1/16 Pages) HOLTEK

номер детали	HT82K28A

подробное описание детали	Win98 Keyboard Encoder

PDF	16 Pages

Scroll/Zoom	100%

производитель	HOLTEK [Holtek Semiconductor Inc]

домашняя страница	http://www.holtek.com

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HT82K28A

Win98 Keyboard Encoder

Pin Assignment

Rev. 1.30

1

June 27, 2002

General Description

The HT82K28A is a keyboard encoder especially de-

signed for IBM PC/AT, IBM PS/2 and all compatible ma-

chines.

The HT82K28A accepts keyboard inputs and contains a

16-character first-in-first-out buffer in which data is

stored. An inexpensive RC oscillator can be used for the

system clock. The device offers the advantage of simple

implementation in high performance and low cost key-

board applications.

Features

· Designed for Windows 95/98/NT

· Supports 3 Windows 95 Keys

· Supports Power, Sleep and Wake-up Windows 98

ACPI functions

· Supports Japanese, Korean and Portuguese

· Supports Japanese DOS/V 106-key keyboard

· Supports code set 1, for PS/2 model 30 keyboard

· Supports code set 2, for PC/AT, PS/2 model 50,60

keyboards

· Supports code set 3, for PS/2 model 80 keyboard

· RC oscillator

· Phantom key detection

· Minimal external components

· 40-pin DIP package

H T 8 2 K 2 8 A

4 0 D I P - A

4 0

3 9

3 8

3 7

3 6

3 5

3 4

3 3

3 2

3 1

3 0

2 9

2 8

2 7

2 6

2 5

2 4

2 3

2 2

2 1

C 1

C 0

D A T A

C L O C K

R 1 8

R 1 7

N C

R 1 6

C A P

N U M

S C R L

R 9

R 8

R 1 5

R 1 4

N C

R 1 3

R 7

R 6

R 5

O S C 1

V S S

V D D

V S S

I O 0

I O 1

C 2

C 3

C 4

C 5

C 6

C 7

R 1 0

R 1 1

R 1 2

R 0

R 1

R 2

R 3

R 4

1

2

3

4

5

6

7

8

9

1 0

1 1

1 2

1 3

1 4

1 5

1 6

1 7

1 8

1 9

2 0

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Holtek Semiconductor In...	HT82K28A	143Kb / 20P	Win98 Keyboard Encoder February 16, 2000

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HT82K28A датащи(PDF) 1 Page - Holtek Semiconductor Inc

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