NJU6623A
15-CHARACTER 1-LINE DOT MATRIX LCD CONTROLLER DRIVER with OUTPUT PORT
gGENERAL DESCRIPTION The NJU6623A is a Dot Matrix LCD controller driver for 15-character 1line with icon display in single chip. It contains bleeder resistance, general output port, CR oscillator, microprocessor interface circuits, instruction decoder controller, character generator ROM/RAM, high voltage operation common and segment drivers. The character generator ROM consists of 7,840 bits stores 224 kinds of character Font. Each 1,120 bits CG RAM and Icon display RAM can stores 32 kinds of special character displayed on the dot matrix display area or 75 kind of Icon on the Icon display area. The 8-common (7 for character, 1 for icon) and 75-segment drivers operated 15-character 1-line with 75 Icon LCD display and LED driver drives 4 LED which can use like as indicator. The 16th gray scale contrast control function is incorporated for its adjustment. Therefore, simple power supply circuit and easy contrast adjustment are available. The complete CR oscillator is incorporated, therefore no external components for oscillation circuit are required. The microprocessor interface circuits which operate by 1MHz, can be selected serial interface.
gPACKAGE OUTLINE
NJU6623AFG1
gFEATURES n 15-character 1-line Dot Matrix LCD Controller Driver n Maximum 75 Icon Display n Serial Direct Interface with Microprocessor n Display Data RAM - 15 x 8 bits : Maximum 15-character 1-line Display n Character Generator ROM - 7,840 bits : 224 Characters for 5 x 7 Dots n Character Generator RAM - 1,120 bits : 32 Patterns( 5 x 7 Dots ) n Icon Display RAM - 15 x 5 bits : Maximum 75 Icons n High Voltage LCD Driver : 8-common / 75-segment n Duty and Bias Ratio : 1/8 duty, 1/4 bias n Useful Instruction Set : Clear Display, Address Home, Display ON/OFF Cont, Display Blink, Address Shift, Character Shift n General output port (4 ports) n Power On Initialization / Hardware Reset n Bleeder Resistance on-chip n Software contrast control(16 step) n Oscillation Circuit on-chip n Low Power Consumption n Operating Voltage --- 2.4 to 5.5 V n Package Outline --- QFP 100 n C-MOS Technology
Jul.2002 Ver.4
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