KBD42W11 View Datasheet(PDF) - SMSC -> Microchip

Part Name

Description

Manufacturer

KBD42W11

Keyboard Controller

SMSC -> Microchip 

TABLE OF CONTENTS

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

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

PIN CONFIGURATION ...................................................................................................................... 3

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

BLOCK DIAGRAM ............................................................................................................................ 5

AC TIMING........................................................................................................................................ 6

TIMING WAVEFORMS ...................................................................................................................... 7

WRITE CYCLE TIMING ........................................................................................................................ 7

READ CYCLE TIMING.......................................................................................................................... 7

SEND DATA TO K/B ........................................................................................................................... 8

RECEIVE DATA FROM K/B................................................................................................................... 8

XIN/XOUT CLOCK ........................................................................................................................... 8

ABSOLUTE MAXIMUM RATINGS..................................................................................................... 9

ELECTRICAL CHARACTERISTICS & CAPACITANCE ..................................................................... 9

STATUS REGISTER ....................................................................................................................... 10

OUTPUT BUFFER........................................................................................................................... 10

INPUT BUFFER .............................................................................................................................. 10

I/O PORTS ...................................................................................................................................... 10

COMMANDS (I/O ADDRESS HEX 64)............................................................................................. 12

APPLICATION CIRCUIT ................................................................................................................. 13

ASYNCHRONOUS ............................................................................................................................. 13

SYNCHRONOUS............................................................................................................................... 14

PACKAGE DIMENSIONS................................................................................................................ 15

80 Arkay Drive

Hauppauge, NY 11788

(516) 435-6000

FAX (516) 273-3123

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