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PDF EKK8301 Data sheet ( Hoja de datos )
| Número de pieza | EKK8301 | |
| Descripción | Keyboard Encoder | |
| Fabricantes | ELAN Microelectronics | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de EKK8301 (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
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eKK8301
Keyboard Encoder
Product
Specification
DOC. VERSION 1.0
ELAN MICROELECTRONICS CORP.
August 2002
1 page  
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eKK8301
Keyboard Encoder
1 General Description
The eKK8301 microcontroller is dedicated to a keyboard encoder, specially designed
for IBM PC AT and all compatible machines. The eKK8301 control all scan codes,
three LEDs status, scan timing and communications between the keyboard and PC.
It is easy to implement a high performance, low cost keyboard with the minimal
external components.
2 Features
Low cost - eliminate need external components.
Phantom key detects.
RC oscillator (1.8432MHz).
Support scan code set 1, 2 and 3.
Support PC AT and PS/2 keyboard.
Low power CMOS device technology.
Internal pull-up resistor.
Tri-state outputs for easy board application.
Built-in 4K ROM.
Support WINDOWS TM 95, 98, 2000, ME keys.
104/107 keys with multi-media or other special application keyboard encoder.
WINDOWS is registered trademarks of Microsoft corporation.
3 Applications
IBM PC AT or compatible machine keyboard.
IBM PS/2 model 30, 50, 60, 80 or compatible machine keyboard.
Japanese keyboard.
Korean keyboard.
Brazilian keyboard.
European keyboard.
Product Specification (V1.0) 08.07.2002
(This specification is subject to change without further notice)
•1
5 Page 
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3. Default rate = 10.9 chars/sec + 20%
Default delay = 500 ms 20%
Enable (Hex F4)
- Responds with ACK.
- Clears output buffer.
- Clears last typematic key.
- Start scanning.
Default Disable (Hex F5)
- Responds with ACK.
- Resets all conditions to power-on state.
- Clears output buffer.
- Sets the default key type (scan code set 3 only).
- Set the default typematic rate/delay.
- Clears last typematic key.
- Stops scanning.
Set Default (Hex F6)
- Responds with ACK.
- Resets all conditions to power-on state.
- Clears output buffer.
- Sets the default key type (scan code set 3 only)
- Set the default typematic rate/delay.
- Clears last typematic key.
- Continues scanning.
Set All Keys (Hex F7, F8, F9, FA)
- Responds ACK.
- Clears output buffer.
- Sets all key type (affect only scan code set 3 operation).
Product Specification (V1.0) 08.07.2002
(This specification is subject to change without further notice)
eKK8301
Keyboard Encoder
7
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet EKK8301.PDF ] | |
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