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NJU6624AFG1 Datasheet

  • NJU6624AFG1

  • 12-CHARACTER 1-LINE DOT MATRIX LCD CONTROLLER DRIVER with SM...

  • 907.95KB

  • 35頁

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NJU6624A/B
PRELIMINARY
12-CHARACTER 1-LINE DOT MATRIX LCD
CONTROLLER DRIVER with SMOOTH SCROLL FUNCTION
g
GENERAL DESCRIPTION
The NJU6624A/B is a Dot Matrix LCD controller driver for 12-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 60 kinds of Icon on the Icon display area.
The 8-common (7 for character, 1 for icon) and 71-segment drivers
operate 12-character 1-line with 60 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.
As an outstanding feature, NJU6624A/B realizes the horizontal smooth
scroll of characters by combination of instructions.
The combination of NJU6624A as the Master and NJU6624B as the
slave drive the 12-character and 2-line LCD panel or 24-character 1-
line in 1/8 duty.
g
PACKAGE OUTLINE
NJU6624A/BFG1
g
FEATURES
n
12-character 1-line Dot Matrix LCD Controller Driver
n
Maximum 60 Icon Display
n
Serial Direct Interface with Microprocessor
- 14 x 8 bits : Maximum 12-character 1-line Display
n
Display Data RAM
- 7,840 bits : 224 Characters for 5 x 7 Dots
n
Character Generator ROM
- 1,120 bits : 32 Patterns( 5 x 7 Dots )
n
Character Generator RAM
- Maximum 60 Icons
n
Icon Display RAM
: 8-common / 71-segment
n
High Voltage LCD Driver
: 1/8 duty, 1/4 bias
n
Duty and Bias Ratio
:NJU6624A : Master, NJU6624B : Slave
n
Master/Slave Function
: Clear Display, Address Home, Display ON/OFF Cont., Display Blink,
n
Useful Instruction Set
Address Shift, Character Shift, Dot shift, Keyscan ON/OFF Cont. e.t.c.
n
32Key Input (4x8 keyscan)
General
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
--- QFP 100
n
Package Outline
Mar.2000
n
C-MOS Technology
Ver.1

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