NJU6624C Datasheet, PDF (1/27 Pages) New Japan Radio – 14-CHARACTER 1-LINE DOT MATRIX LCD CONTROLLER DRIVER with SMOOTH SCROLL FUNCTION

NJU6624C
PRELIMINARY
14-CHARACTER 1-LINE DOT MATRIX LCD
CONTROLLER DRIVER with SMOOTH SCROLL FUNCTION
gGENERAL DESCRIPTION
The NJU6624C is a Dot Matrix LCD controller driver for 14-character 1-
line with icon display in single chip.
It contains bleeder resistance, general output port, keyscan circuit,
CR oscillator, microprocessor interface circuit, instruction decoder con-
troller, character generator ROM/RAM, high voltage operation com-
mon and segment drivers, and others.
The character generator ROM consisting of 7,840 bits stores 224 kinds
of character Font. Each 1,120 bits CG RAM and Icon display RAM
can store 32 kinds of special character displayed on the dot matrix
display area or 70 kinds of Icon on the Icon display area.
The 8-common (7 for character, 1 for icon) and 70-segment drivers
operate 14-character 1-line with 70 Icon LCD display and LED driver
drives 4 LED which can use like as indicator.
The 16th display contrast control function is incorporated. Therefore,
the contrast adjustment is operated easily by only simple power sup-
ply circuit on-chip.
The complete CR oscillator requires no external components.
The serial interface which operates by 1MHz, communicates with ex-
ternal MCU.
gPACKAGE OUTLINE
NJU6624CFG1
gFEATURES
n ^{14-character 1-line Dot Matrix LCD Controller Driver}
n ^{Maximum 70 Icon Display}
n ^{Serial Direct Interface with Microprocessor}
n ^{Display Data RAM}
- 14 x 8 bits : Maximum 14-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}
- Maximum 70 Icons
n ^{High Voltage LCD Driver}
: 8-common / 70-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, Keyscan ON/OFF Cont. e.t.c.
n ^{32Key Input (4x8 keyscan)}
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}
Mar.2000
Ver.1