E2420 Decoded 64 Key Keyboard

E2420 Decoded 64 Key Keyboard

E2420 Decoded 64 Key Keyboard

 

 

 

 

 

 

 

 

The E2420 Decoded 64 Key Keyboard is an easy to use data entry device encoding 64 keys into a glitch free 8 bit code on the make of each key closure. A robust key lockout algorithm prevents multiple keys from sending erroneous codes. All 64 keys are scanned within 3 ms while providing a 20 ms debounce time for each key. The baud rate is selectable using solderable jumpers.  A clocked serial data output similar to a PS/2 interface but running at 100 KHz is also provided.  An 8msec trigger output is active 50 µsec prior to the data being sent.  An LED flashes each key closure and a typematic function is also included.  The keys are labeled with their keycodes on the PCB and the keyboard is easily mounted with #4 hardware. Power input is 3.3V to +5.5V and the outputs are TTL compatible.  Different button heights are available, please contact us for your requirements.

US$39.99

E2420 Decoded 64 Key Keyboard Datasheet