General Description
In RF keyboard system, that is divided into two parts (the transmitter and the receiver). The eKK6111 micro-controller is dedicated to RF keyboard decoder for single channel RF Rx module. The eKK6111 is decode the data from RF Rx module, control all scan codes, three LEDs status and communication with PC. That is specially designed for IBM PC AT and all compatible machines.

Features
■ Low Cost – eliminate need external components
■ Resonator Oscillator (4.00MHz)
■ Support scan code set 1, 2 and 3
■ Support PC AT and PS/2 keyboard
■ Support WINDOWS 95, 98, 2000 keys.
■ 104/107 Key with multi-media or other special application keyboard encoder.
■ RF demodulation tolerance: ± 20%
■ Using the device ID to identify which transmitter was connected.
    • DIP switch to select. (8 sets ID)
    • Random generate ID (255 sets ID) and store in EEPROM (93LC46)
■ Package: 28-pins PDIP, 28-pins SOP

Application
■ The eKK6111 is support the single channel or two channels RF Receiver module.
■ IBM PC AT or compatible machine keyboard
■ IBM PS/2 or compatible machine keyboard