LC7985

The LC7985 series devices are low-power CMOS ICs that incorporate dot-matrix xharacter generator,display controller and driver functions in a single device,making then ideal for use in portable equipment containing LCD display.The LC7985 series interface directly to both 4-bit and 8-bit microcontrollers.The instruction set includes display clear,cursor home,display ON/OFF,character blink,and cursor and display shift instructions.The built-in reset circuit automatically intializes the devices at power-ON.

Features of the LC7985 are:(1)controller and driver for dot-matrix LCD displays;(2)5*7-pixel and 5 * 10-pixel characters fonts;(3)160,5*7-pixel characters and 32,5*10-pixel characters in character generator ROM;(4)eight,5*7-pixel characters or four,5*10-pixel characters in character generator RAM;(5)80-character display data RAM;(6)built-in drivers for 1-line * 8-character and 2-line * 8-character displays;(7)easy expansion to 1-line * 80-character or 2-line * 40-character displays;(8)4-bit or 8-bit microcontroller interface;(9)11 microcontroller interface;(10)built-in reset circuit;(11)built-in oscillator;(12)5V supply;(13)80-pin QIP.

The absolute maximum ratings of the LC7985 can be summarized as:(1):the parameter is supply voltage,the symbol is VDD,the rating is -0.3 to +7.0,the unit is V;(2):the parameter is input voltage,the symbol is VIN,the rating is -0.3 to VDD+0.3,the unit is V;(3):the parameter is LCD drive supply voltage range,the symbol is V1 to V5,the rating is VDD-13.5 to VDD+0.3,the unit is V;(4):the parameter is operating temperature range,the symbol is Topr,the rating is -20 to +75,the unit is ;(5):the parameter is storage temperature,the symbol is Tstg,the rating is -55 to +125,the unit is .