T7779

The T7779 is a controller LSI for a rater-scan-type CRT display and large-scale dot matrix LCD.It can be used in applications ranging from small-scale character display systems to large-scale graphic display systems.

Features of the T7779 are:(1)refresh memory address is MA0 to MA15;(2)line scanning address is LA0 to LA4;(3)frame buffer capacity;(4)number of characters per line is 1 to 255;(5)number of character row is 1 to 255;(6)scrolling,paging;(7)light pen;(8)horizontal dots per character according to font;(9)vertical dots per character according to font;(10)data output;(11)various attribute functions;(12)external synchronization;(13)single 5V power supply;(14)high speed operation is 18 MHz;(15)low power consumption;(16)CMOS,Si-gate structure;(16)100-pin flat plastic package.

The absolute maximum ratings of the T7779 can be summarized as:(1):the item is supply voltage,the symbol is VDD,the rating is -0.3 to 7.0,the unit is V;(2):the item is input voltage,the symbol is VIN,the rating is -0.3 to VDD+0.3,the unit is V;(3):the item is operating temperature,the symbol is Topr,the rating is -20 to 75,the unit is ;(4):the item is storage temperature,the symbol is Tstg,the rating is -55 to 125,the unit is .