EKK8301 Ver la hoja de datos (PDF) - ELAN Microelectronics

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EKK8301

Keyboard Encoder

ELAN Microelectronics 

Contents

Contents

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

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

3 Applications............................................................................................................... 1

4 Pin Configuration ...................................................................................................... 2

5 Pin Description.......................................................................................................... 3

6 Function Descriptions .............................................................................................. 4

6.1 Keyboard Buffer ................................................................................................. 4

6.2 Power-on Reset and Self Test ............................................................................ 4

6.3 Keyboard Data Output........................................................................................ 4

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

6.5 Command from the System................................................................................ 5

6.6 Command to the System.................................................................................... 9

6.7 Keyboard Scan Code Table................................................................................ 9

6.8 Internal-Multi Function...................................................................................... 19

6.9 Application Function ......................................................................................... 19

7 Absolute Maximum Ratings ................................................................................... 20

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

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

10 Timing Diagrams ..................................................................................................... 21

11 Application Circuit .................................................................................................. 22

12 Application Matrix ................................................................................................... 23

13 PAD Diagram............................................................................................................ 24

Product Specification (V1.0) 08.07.2002

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