KB3910 View Datasheet(PDF) - Unspecified

Part Name

Description

Manufacturer

KB3910

Keyboard Controller

Unspecified 

KB3920 Keyboard Controller Datasheet

CONTENT

1. FEATURES ...............................................................................................................4

1.1 FEATURE SUMMARY ........................................................................................................... 4

1.2 COMPARISON ON KB3910 176-PIN VS. KB3920 144-PIN ...................................................... 7

1.3 BLOCK DIAGRAM ............................................................................................................... 8

2. PIN ASSIGNMENT AND DESCRIPTION .............................................................9

2.1 144 PIN LQFP DIAGRAM TOP VIEW ..................................................................................... 9

2.2 169 GBA DIAGRAM TOP VIEW .......................................................................................... 10

2.3 PIN ASSIGNMENT SIDE A .................................................................................................. 12

2.4 PIN ASSIGNMENT SIDE B .................................................................................................. 12

2.5 PIN ASSIGNMENT SIDE C .................................................................................................. 13

2.6 PIN ASSIGNMENT SIDE D .................................................................................................. 14

2.7 I/O CELL DESCRIPTIONS................................................................................................... 15

2.7.1 I/O Buffer Table .......................................................................................................... 15

2.7.2 I/O Buffer Characteristic Table.................................................................................... 15

2.7.3 I/O Buffer Naming Convention .................................................................................... 15

3. PIN DESCRIPTIONS............................................................................................. 16

3.1 HARDWARE STRAP .......................................................................................................... 16

3.2 PIN DESCRIPTIONS BY FUNCTIONALITY............................................................................... 16

3.2.1 Low Pin Count Interface Pin Descriptions................................................................... 16

3.2.2 X-BUS Interface Pin Descriptions ............................................................................... 16

3.2.3 PS2 Interface Pin Descriptions.................................................................................... 17

3.2.4 Internal Keyboard Encoder Pin Descriptions............................................................... 17

3.2.5 SMBus Pin Descriptions.............................................................................................. 17

3.2.6 FAN Pin Descriptions.................................................................................................. 17

3.2.7 Pulse Width Modulation Pin Descriptions.................................................................... 17

3.2.8 Analog to Digital Pin Descriptions .............................................................................. 17

3.2.9 Digital to Analog Pin Descriptions .............................................................................. 18

3.2.10 8051 External Interface Pin Descriptions .................................................................. 18

3.2.11 Clock Pin Descriptions .............................................................................................. 18

3.2.12 Miscellaneous Pin Descriptions................................................................................. 18

3.2.13 Power Pin Descriptions............................................................................................. 19

4. MODULE DESCRIPTIONS .................................................................................. 19

4.1 CHIP ARCHITECTURE........................................................................................................ 19

Copyright©2006, ENE Technology Inc.

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