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are trademarks of ELAN Microelectronics Corporation.
Copyright
2005 by ELAN Microelectronics Corporation
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Printed in Taiwan
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Contents
Product Specification (V1.0) 11.15.2002
iii
Contents
1 General
Description .................................................................................................. 1
2 Features ..................................................................................................................... 1
3 Application................................................................................................................. 2
4 Pin
Assignment ......................................................................................................... 2
5 Pin
Descriptions........................................................................................................ 3
6 Function
Description ................................................................................................ 4
6.1 Encoder
Buffer ................................................................................................... 4
6.2 Device
ID............................................................................................................ 4
7
Absolute Maximum Ratings ..................................................................................... 4
8
DC Electrical Characteristics ................................................................................... 5
9
AC Electrical Characteristic(Ta=0
~70
, Vdd=5v, Vss=0v) ................................ 5
10 Application
Circuit .................................................................................................... 6
11 Keyboard
Arrange
Map............................................................................................. 8
12 Keyboard
Layout....................................................................................................... 9
eKK6511
RF Keyboard Encoder
Product Specification (V1.0) 11.15.2002
1
(This specification is subject to change without further notice)
1 General
Description
In RF keyboard system, that is divided into two parts (the transmitter and the receiver).
The eKK6511 micro-controller is dedicated to a RF keyboard encoder for single
channel RF transmitter module. The eKK6511 is scanning keyboard state, encode key
data and rely on RF Tx module to transmit data.
RF Tx
Module
Keyboard
RF Rx
Module
eKK6111
IBM Compatible
Receiver
PS/2
eKK6511
Transmitter
RF
2 Features
Low cost eliminate need external components.
Phantom key detect.
Resonator oscillator (2.00 MHz)
Low power CMOS device technology
Internal pull-up resistor.
Tri-state outputs for easy board application.
Built-in 4K ROM.
Support WINDOWSTM 95, 98, 2000 keys.
104/107 keys with multi-media or other special keyboard encoder.
Support RF transmit module sleep mode (Sleep current under 10A).
Warm-up time of RF Tx modules: 7.2 sec
Using the device ID to identify which receiver was connected.
DIP switch to select. (8 sets ID)
Random generate ID (255 sets ID) and store in EEPROM (93LC46)
Package: 40-pins PDIP, 44-pins QFP
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