NJU6461
12-CHARACTER 2-LINE
DOT MATRIX LCD CONTROLLER DRIVER
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GENERAL DESCRIPTION
The
NJU6461
is a Dot Matrix LCD controller driver for
12-character 2-line with icon display in single chip.
It contains voltage converter, bleeder resistance, CR oscillator,
microprocessor interface circuits, instruction decoder controller,
character generator ROM/RAM, high voltage operation common
and segment drivers.
The voltage tripler and bleeder resistance generates about
triple voltage (8V) and bias voltage for LCD driving waveform
internally from single power supply (3V). Consequently,
high-contrast display can be performed though the simple power
supply circuits.
The microprocessor interface circuits which operate by 1MHz,
can be selected serial, 4 or 8bit bus.
The character generator consists of 9,600 bits ROM and 32 x 5
bits RAM.
The
NJU6461
has two versions regarding the oscillation circuits,
version A incorporates C and R, and version B incorporates only
C.
The 18-common (16 for character, 2 for icon) and 60-segment
drivers are operated up to 13.5V drives 12-character 2-line with
60 icons LCD display.
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PACKAGE OUTLINE
NJU6461CCL
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FEATURES
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12-character 2-line Dot Matrix LCD Controller Driver
Maximum 60 icon Display (Using COMMK1 and COMMK2)
Serial, 4 or 8 Bit parallel Direct Interface with Microprocessor
Display Data RAM - 24 x 8 bits : Maximum 12-character 2-line Display
Character Generator ROM - 9,600 bits : 240 Characters for 5 x 7 Dots
Character Generator RAM - 32 x 5 bits : 4 Patterns (5 x 7 Dots)
High Voltage LCD Driver : 18-common / 60-segmen
Maximum Display Character Number (1/18 Duty):
Device
NJU6461C
Display Character
12-Character 2-Line
+ Max.60 Icon Disp.
Position of COMMK
Upper Side
or Lower Side
Oscillation Circuits
Internal C and R
(Osc Freq.=80kHz)
Duty of COMMK
1/18
* When other Oscillation Frequency is required, please use version B and fix the Ext. R
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Useful Instruction Set : Clear Display, Return Home, Display ON/OFF Cont, Cursor ON/OFF Cont,
Display Blink, Cursor Shift, Character Shift
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Power On Initialization / Hardware Reset
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Voltage converter and Bleeder Resistance On-chip
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Oscillation Circuit On-chip
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Low Power Consumption
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Operating Voltage
2.4 to 3.6 V (Except LCD Driving Voltage)
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Package Outline
Bumped Chip
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C-MOS Technology
Ver.2005-05-20
-1-
Microcontroller MCU
京公网安备 11010802033920号
EEWORLD
