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PDF NJU6539 Data sheet ( Hoja de datos )
| Número de pieza | NJU6539 | |
| Descripción | BITMAP LCD DRIVER | |
| Fabricantes | New Japan Radio | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de NJU6539 (archivo pdf) en la parte inferior de esta página. Total 5 Páginas | ||
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NJU6539
PRELIMINARY
1/8, 1/9, 1/10 Duty
BITMAP LCD DRIVER with KEY SCAN
www.dataGshEeNet4EuR.coAmL DESCRIPTION
The NJU6539 is a 10-common x 65-segment bitmap LCD driver
to display graphics or characters.
It contains 650 bits display data RAM, microprocessor interface
circuit, common and segment drivers, key scan circuit, and general
output ports.
An image data from MPU through the serial interface is stored
into the 650 bits internal displayed on the LCD panel through the
commons and segments drivers.
The NJU6539 displays 10 x 65 dots graphics or 11-character
1-line by 5 x 7 dots character + 3 x 65 dots icons.
It contains key scan circuit transmitting the 25-keys maximum (5 x 5
= 25) to MPU.
Also it provides 4 general purpose output ports with PWM output
function maximum to drive LEDs or others directly.
Furthermore, the NJU6539 can select a LCD driving voltage out
of 16 steps voltage by the instruction adjust the display contrast of
LCD panel.
PACKAGE OUTLINE
NJU6539FG1
NJU6539FC2
FEATURES
Direct Correspondence between Display Data RAM and LCD Pixel
Display Data RAM
: 650-bits
LCD Drivers
: 65-seg, 10-com
Serial interface (SIO, SCL, CS)
Programmable Duty Ratio
1/8 Duty, 1/9 Duty, 1/10Duty
Bias Ratio
1/4 bias
25-key scan Function (5 x 5 matrix)
Needless for anti-reverse current diodes in key scan
General Output Ports with 128-steps PWM output (possible LED driving) maximum 4-ports
Useful Instruction Set
Display ON/OFF, Page Address Set, Column Address Set, ADC Select, Inverse Display ON/OFF, whole display
ON/OFF, Reset, EVR Register Set, Duty Select, Power Save mode set, General Output Port set, General Output Port
PWM data set, PWM slope set, PWM program Execute, General Output Port / Key scan output select, Display
Data write,
Bleeder Resistance On-chip
Software Contrast Control (16 steps)
Operating Voltage
Logic Operating Voltage 2.7 to 5.5V
LCD Driving Voltage
5.0 to 10.0V
Package Outline
QFP100-G1
QFP100-C2
C-MOS Technology
(Substrate: P)
Ver.2004-03-01
-1-
1 page  
NJU6539
APPLICATION CIRCUIT
www.datasheet4u.com
VDD
VSS
*1
MPU
VLCD
*3
*2
*3
*3
*3
*3
VSS
VDD
VSS
RESb
CE
SC
SIO
VLCD1
VLCD2
V0
V1
V2
COM1
COM10
10com 65seg
matrix LCD panel
SEG1
NJU6539 SEG65
Po1
Po2
Po3
Po4/S1
General output ports
VSS
OSC
5 x5 key matrix *4
*1 The rising time of Power source voltage at Power on and the falling time at Power off must keep over than 1ms because of
Voltage detection type Reset circuit operation.
*2 SO terminal requires external pull-up resistor connecting to Power source of external MPU because of Open-drain type output.
*3 This capacitor for bias voltage stabilization should be connected in accordance with display quality in application.
*4 PO3 / S0 terminal is general output ports and Key scan signal output duplicated-function terminals. A function must be selected
either Segment output or other.
Ver.2004-03-01
[CAUTION]
The specifications on this databook are only
given for information , without any guarantee
as regards either mistakes or omissions. The
application circuits in this databook are
described only to show representative usages
of the product and not intended for the
guarantee or permission of any right including
the industrial rights.
-5-
5 Page | ||
| Páginas | Total 5 Páginas | |
| PDF Descargar | [ Datasheet NJU6539.PDF ] | |
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