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PDF EKK8011 Data sheet ( Hoja de datos )
| Número de pieza | EKK8011 | |
| Descripción | USB & PS/2 Keyboard Encoder | |
| Fabricantes | ELAN Microelectronics | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de EKK8011 (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
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eKK8011
USB & PS/2
Keyboard Encoder
Product
Specification
DOC. VERSION 1.0
ELAN MICROELECTRONICS CORP.
June 2003
1 page  
www.DataSheet4U.com
eKK8011
USB & PS/2 Keyboard Encoder
1 General Description
The eKK8011A/eKK8011B microcontroller is dedicated to an USB & PS/2 keyboard
encoder ,specially designed for IBM PC AT and all compatible machines. The
eKK8011A/eKK8011B controls 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. The Body of
eKK8011A is EM78M611, and the body of eKK8011B is EM78611.
2 Features
USB Specification Compliance
• Universal Serial Bus Specification Version 1.1
• USB Device Class Definition for Human Interface Device (HID), Firmware
Specification Version 1.1
Low cost - eliminate need external components.
Run at 6MHz frequency
Phantom key detects.
Support scan code set 1 ,2 and 3 for PS/2.
Support HID Usage ID for USB
Support PC PS/2 and USB keyboard.
Support USB Sleep Mode
Low power CMOS device technology.
Internal pull-up resistor.
Tri-state outputs for easy board application.
Support WINDOWS TM 95, 98, 2000, ME keys.
Support multi-media or other special application keyboard encoder.
WINDOWS is registered trademarks of Microsoft corporation.
3 Applications
USB Keyboard only.
USB and PS/2 both compatible with Keyboard
Product Specification (V1.0) 06.10.2003
(This specification is subject to change without further notice)
•1
5 Page 
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eKK8011
USB & PS/2 Keyboard Encoder
bit 4~ bit 0
01000
01001
01010
01011
01100
01101
01110
01111
Typematic rate ±20%
15.0
13.3
12.0
10.9
10.0
9.2
8.6
8.0
bit 4~ bit 0
11000
11001
11010
11011
11100
11101
11110
11111
typematic rate ±20%
3.7
3.3
3.0
2.7
2.5
2.3
2.1
2.0
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,
Product Specification (V1.0) 06.10.2003
(This specification is subject to change without further notice)
7
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet EKK8011.PDF ] | |
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