EM83053DH Ver la hoja de datos (PDF) - ELAN Microelectronics

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EM83053DH

PC Microcontroller

ELAN Microelectronics 

Contents

Contents

1 General Description .................................................................................................. 1

2 Features ..................................................................................................................... 1

3 Application................................................................................................................. 1

4 Pin Assignments ....................................................................................................... 2

5 Pin Descriptions........................................................................................................ 2

6 Function Descriptions .............................................................................................. 3

6.1 Keyboard Buffer ................................................................................................. 3

6.2 Power-on Reset and Self Test ............................................................................ 3

6.3 Keyboard Data Output........................................................................................ 3

6.4 Keyboard Data Input .......................................................................................... 4

6.5 Command from the System................................................................................ 4

6.6 Set All Keys ( Hex F7,F8,F9,FA )........................................................................ 7

6.7 Command to the System.................................................................................... 8

6.8 Keyboard Scan Code Table................................................................................ 9

7 Absolute Maximum Ratings ................................................................................... 19

8 DC Electrical Characteristics ................................................................................. 20

9 AC Electrical Characteristics ................................................................................. 20

10 Timing Diagrams ..................................................................................................... 20

11 Application Circuit .................................................................................................. 21

12 Application Matrix ................................................................................................... 22

Product Specification (V1.0) 03.28.2003

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