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NJU6475B Datasheet(PDF) 1 Page - New Japan Radio

Part No. NJU6475B
Description  12-Character 4-Line Dot Matrix Low Power LCD Controller Driver with key Scan Function
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Maker  NJRC [New Japan Radio]
Homepage  http://www.njr.co.jp/index_e.htm
Logo NJRC - New Japan Radio

NJU6475B Datasheet(HTML) 1 Page - New Japan Radio

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NJU6475B
P R E L IM IN A R Y
12-Character 4-Line Dot Matrix Low Power
LCD Controller Driver with key Scan Function
GENERAL DESCRIPTION
PACKAGE OUTLINE
The NJU6475B is a Dot Matrix LCD Controller Driver for
12-character 4-line with Icon display in single chip. It contains
voltage converter, voltage regulator, bleeder resistance, CR
oscillator, instruction decoder, character generator ROM/RAM,
high voltage operation controller/driver and key scan circuit.
The voltage
converter generates (about 8V) from the
supply voltage (3V) and regulated by the regulator. The bias
level of LCD driving voltage is generated of high value bleeder
resistance and the buffer amplifier matches the
impedance. 16-step contrast control function is incorporated
for its adjustment. Therefore, simple power supply circuit and
NJU6475B
easy contrast adjustment are available. The complete CR
oscillator is incorporated without external components for
oscillation circuit. The microprocessor interface circuit which
operates by 1MHz, can be selected serial interface.
The character generator ROM consisting of 10,080bits stores
252 kinds of character Font.
Each 160bits CG RAM and Icon display RAM can story
4 kinds of special character to display on the dot matrix
display area or 128 kinds of Icon on the display area.
FEATURES
12-Character 4-Line Dot Matrix LCD Controller Driver
Maximum 128-Icon Display
Serial CPU Interface
Display Data RAM
- 48 x 8 Bits :Maximum 12-Character 4-Line Display
Character Generator ROM
- 10,080 Bits:252 Characters (5 x 8 Dots)
Character Generator RAM
- 32 x 5 Bits :4 Patterns (5 x 8 Dots)
Icon Display RAM
- 32 x 5 Bits :Maximum 128-Icon
High Voltage LCD Driver
: 37-Common/63-Segment
Duty & Bias Ratio
: 1/36 duty 1/7Bias
Useful Instruction Set
: Clear Display, Return Home, Display On/Off Control
Display Blink,Cursor Shift, Character Shift
Common and Segment Driver location Order Select Function (Mode-A, Mode-B)
Power On Reset Circuit On Chip
Hardware Reset
Voltage Regulator On Chip
Electrical Variable Resistance On Chip
32-key scan function (8 x 4 Matrix)
Oscillation circuit On Chip
Voltage Converter (Doubler,Tripler) On Chip
Bleeder Resistance On Chip
Low Oprating Current
Operating Voltage
- 2.4V to 3.6V (Except For LCD Driving Voltage)
Package Outline
- Bumped-Chip / TCP
C-MOS Technology


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