Product Summary

The D8279C-2 is a programmabl keyboard and display input/output device providing the user with the ability to display data on alphanumeric segment displays or simple indicators. The display RAM can be programmmed to function as a 10*8-bit or dual 16*4-bit memory and can be loaded with right or left entry with an auto-increment of the display RAM address.

Parametrics

D8279C-2 absolute maximum ratings: (1)power supply voltage: -0.5~7.0V; (2)power dissipation: 1W; (3)operating temperature: 0~70℃; (4)storage temperature: -65~150℃.

Features

D8279C-2 features: (1)programmable by processor; (2)32 hex or 16 alphanumeric displays; (3)64 expandableto 128 keyboard; (4)simultaneous keyboard and display; (5)8 character keyboard-FIFO; (6)2 key lockout or N key timer; (7)contact debounce; (8)interrupt on keyt entry; (9)programmable scan timer; (10)single +5V ±10% power supply.

Diagrams

D8279C-2 block diagram