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

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KBD43W13

Keyboard and PS/2 Mouse Controller

SMSC -> Microchip 

TABLE OF CONTENTS

FEATURES ....................................................................................................................................... 1

GENERAL DESCRIPTION ................................................................................................................ 1

PIN CONFIGURATIONS.................................................................................................................... 3

PIN DESCRIPTION ........................................................................................................................... 4

BLOCK DIAGRAM ............................................................................................................................ 6

ABSOLUTE MAXIMUM RATINGS..................................................................................................... 7

ELECTRICAL CHARACTERISTICS & CAPACITANCE ..................................................................... 7

OUTPUT BUFFER............................................................................................................................. 8

INPUT BUFFER ................................................................................................................................ 8

(A) INPUT PORT DEFINITION (AT MODE) .............................................................................................. 9

(B) OUTPUT PORT DEFINITION (AT MODE) ........................................................................................... 9

(C) TEST-INPUT PORT DEFINITION (AT MODE) ...................................................................................... 9

STATUS REGISTER (PS/2 MODE) ...................................................................................................... 10

INPUT PORT DEFINITION ................................................................................................................... 10

OUTPUT PORT DEFINITION................................................................................................................ 11

TEST-INPUT PORT DEFINITION........................................................................................................... 11

COMMANDS (I/O ADDRESS HEX 64) (AT MODE) ................................................................................ 11

COMMANDS (I/O ADDRESS HEX 64) (PS/2 MODE) ............................................................................. 12

AC TIMING...................................................................................................................................... 14

TIMING WAVEFORMS .................................................................................................................... 15

WRITE CYCLE TIMING ...................................................................................................................... 15

READ CYCLE TIMING........................................................................................................................ 15

RECEIVE DATA FROM K/B................................................................................................................. 16

TYPICAL APPLICATION CIRCUITS................................................................................................ 18

APPLICATION FOR AT MODE ............................................................................................................. 18

APPLICATION FOR PS/2 MODE .......................................................................................................... 19

DRIVING FROM EXTERNAL SOURCE .................................................................................................... 20

PACKAGE DIMENSIONS................................................................................................................ 21

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