HT82K628A

Windows 2000 PS/2 Keyboard Encoder

Pin Assignment

Rev. 1.60

1

April 16, 2004

Features

European

plication keyboard encoder

keyboard

corporation

General Description

The HT82K628A is a keyboard encoder designed for

IBM PC/AT, IBM PS/2 and all compatible machines.

The HT82K628A accepts keyboard inputs and provides

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

stored.

An inexpensive RC oscillator can be used for the system

clock. Simple implementation of this device is an advan-

tage for high performance and low cost keyboard appli-

cations.

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

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

R 5

R 4

C 3

C 2

C 1

C 0

R 3

R 2

R 1

R 0

R 1 9

R 1 8

R 1 7

R 1 6

V S S

S C R O L L

N U M

D A T A

C L O C K

F n S e l e c t

R 6

R 7

C 4

C 5

C 6

C 7

N C

O S C 1

V D D

R E S E T

C A P S

R 8

R 9

R 1 0

R 1 1

R 1 2

R 1 3

R 1 4

R 1 5

M a c r o K e y s e l e c t

H T 8 2 K 6 2 8 A

4 0 D I P - A