EKK8011 Ver la hoja de datos (PDF) - ELAN Microelectronics

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EKK8011

USB & PS/2 Keyboard Encoder

ELAN Microelectronics 

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

•1

(This specification is subject to change without further notice)

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