KBD43W13 Ver la hoja de datos (PDF) - SMSC -> Microchip

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KBD43W13

Keyboard and PS/2 Mouse Controller

SMSC -> Microchip 

PIN DESCRIPTION

PIN NO.

(40 Pin

(44 Pin

DIP)

PLCC)

1

2

2

3

3

4

4

5

5

6

6

7

7

8

8

9

9

10

10

11,26

12,13,14,

15,16,17,

18,19

20

11

1,12,13,

23,29,34

14,15,16,

17,18,19,

20,21

22

21

24

22

25

23

26

24

27

25

28

27

30

28

31

29

32

30

33

FUNCTION

I/O

NAME

AT MODE

PS/2 MODE

I

T0

K/B Clock Input

K/B Clock Input

I

X1

Crystal Clock I/P

Crystal Clock I/P

I

X2

Crystal Clock I/P

Crystal Clock I/P

I

nRESET Chip Reset

Chip Reset

-

VCC Optional +5V Power Optional + 5V Power

Supply

Supply

I

nCS Chip Select

Chip Select

-

GND Optional Ground

Optional Ground

Power

Power

I

nRD I/O Read

I/O Read

I

A2

Connect to Address Connect to Address

A2

A2

I

nWR I/O Write

I/O Write

-

NC

Reserved

Reserved

I/O

D0−D7 Data Bus D0−D7

Data Bus D0−D7

-

O

O

I/O

I/O

-

I/OPU*

I/OPU*

I/O

I/O

GND

P20

P21

P22

P23

VCC

P10

P11

P12

P13

Ground Power

Supply

Bit 0 of Port2

(nRC: System

Reset)

Bit 1 of Port2

(nGA20: GATE A20)

Bit 2 of Port2

(NC: User-defined

I/O)

Bit 3 of Port2

(NC: User-defined

I/O)

Optional +5V Power

Supply

Bit 0 of Port1

(User-defined I/O)

Bit 1 of Port1

(User-defined I/O)

Bit 2 of Port2

(User-defined I/O)

Bit 3 of Port1

(User-defined I/O)

4

Ground Power Supply

Bit 0 of Port2

(nRC: System Reset)

Bit 1 of Port2

(nGA20: GATE A20)

Bit 2 of Port2

(MDAT: Mouse Data

Output)

Bit 3 of Port2

(MCLK: Mouse Clock

Output)

Optional + 5V Power

Supply

Bit 0 of Port1

(K/B Data Input)

Bit 1 of Port1

(Mouse Data Input)

Bit 2 of Port2

(User-defined I/O)

Bit 3 of Port1

(User-defined I/O)

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