Editing Chameleon keyboard controller (section)

==Features==
* USB 2.0 full speed
* User-Programmable keyboard matrix, scan code and macro keys
* 4 sets of 8 x 20 keyboard matrix for Numlock(or RFN) and FN cases
* N-key rollover support
* Up to 255 Custom/Macro keys: generate “LCTRL+LALT+DEL”, “000” and “Diet Coke”
* Built-in KeyMouse
* AB rotary encoder mapped keys
* Support PS/2 command pass-through via USB port
* Key-controlled and USB-controlled 8 general purpose output(GPO), 1 state control output(SCO), 1 backlight PWM, 1 Alert LED control, Blackout control
* One external hot-plug PS/2 port supports PS/2 keyboard and mouse including wheel mouse
* Support three FN control modes: Level, Toggle and Sticky
* Support two delay keys
* Supports USB selective suspend and remote wakeup
* Built-in oscillator and digital circuit. No external crystal is needed
* Windows® application to design keyboard matrix
* Low profile QFN 56 pin package: 8x8mm 1.0 Max (LxWxH)
* Low power consumption. 230uA (USB suspend) and 18 mA (USB operation)
* 4.57 to 5.25V operating voltage
* Commercial temperature range:0°C to +70°C