NORITAKE-ITRON GU256x128D-3900 technology data
Dot Graphic VFD Module GU256x128D-3900
256x128 Dot Graphic
5V Supply
High Brightness Blue Green Display
Operating Temp -40°C to +85°C
High Speed 8 Bit Parallel Interface
Asynchronous Serial Interface
The module includes the Vacuum Fluorescent Display glass, VF
drivers and micro-controller ICs with refresh RAM, character
generator and interface logic. The high speed 8 bit parallel
interface is 5V TTL/CMOS compatible suitable for connection to
a host CPU bus. The asynchronous serial interface accepts
baud rates up to 38400, none parity. User defined characters
and many control commands are available.
(Mate JST-XHP-7)
(Mate MIL-STD-16P)
(Mate MIL-STD-14P)
ELECTRICAL SPECIFICATION
Parameter Symbol Value Condition
Power Supply Voltage VCC 5.0VDC +/- 5% GND=0V
Power Supply Current ICC 850mADC typ. Vcc=5V
RS232 Serial High Input VIH 3.0VDC min. VCC=5V
RS232 Serial Low Input VIL -3.0VDC max. VCC=5V
RS232 Serial High Output VOH 5.0VDC min. IOH = -2mA
RS232 Serial Low Output VOL -5.0VDC max. IOL =4mA
Logic High Input VIH 0.8VDC min. VCC=5V
Logic Low Input VIL 0.2VDC max. VCC=5V
Logic High Output VOH 3.5VDC min. IOH = -10uA
Logic Low Output VOL 0.6VDC max. IOL =4mA
The power on rise time should be less than 100ms.The inrush current at power on can be 2 x ICC.
SOFTWARE COMMANDS
Command Name Hex
Back Space 08
Horizontal Tab 09
Line Feed 0A
Cursor Home* 0B
Clear Display 0C
Carriage Return 0D
Escape 1B + ¾
¾ Specify Download Character +25
¾ Download Char. Definition +26
¾ Delete Download Character +3F
¾ Initialize Display +40
¾ Define International Font +52
¾ Define Char. Code Type +74
Overwrite Mode 1F 01
Vertical Scroll Mode 1F 02
Horizontal Scroll Mode 1F 03
Cursor Set 1F 24
RAM Macro Processing 1F 3A
Display Brightness 1F 58
Macro Execution 1F 5E
Enable/Disable Reverse Disply 1F 72
Horizontal Scroll Speed 1F 73
Write Mixture Display Mode 1F 77
Dot Pattern Draw 1F 28 64
User Set Up Mode Start 1F 28 65
I/O Port Control 1F 28 70
See full data sheet for additional
commands.
CN7
CN6
CN4
20.95
115.05
160.0
170.0
148.0
RS232 INTERFACE (CN7)
Pin Sig
1 RXD
2 DTR
3 DSR
4 TXD
5 NC
6 VCC
7 GND
PARALLEL INTERFACE (CN6)
Pin Sig Pin Sig
1 D7 9 GND
2 D6 10 /WR
3 D5 11 GND
4 D4 12 READY
5 D3 13 GND
6 D2 14 GND
7 D1 15 VCC
8 D0 16 VCC
I/O PORT CONNECTOR (CN4)
Pin Sig Pin Sig
1 Bit 7 8 Bit 0
2 Bit 6 9 Bit 3
3 Bit 5 10 Bit 2
4 Bit 4 11 Bit 1
5 Bit 3 12 Bit 0
6 Bit 2 13 VCC
7 Bit 1 14 GND
Dimensions in mm & subject
to tolerances.
57.45
80.0
90.0
Mounting holes 3.5mm dia.
11.77
5.0
5.0
CN1
(Mate JST-XHP-5)
16.0 max
1.6
10.0 max
OPTICAL and ENVIRONMENTAL SPECIFICATIONS
Parameter Value
Display Area (XxY mm) 115.05 x 57.45
Dot Size/Pitch (XxY mm) 0.3 x 0.3 / 0.45 x 0.45
Luminance 500 cd/m2 Typ.
Colour of Illumination Blue-Green (Filter for colours)
Operating Temperature
Storage Temperature
Operating Humidity (non condensing)
RS232
Parallel
5VDC Supply
DISPLAY ADDRESS SELECT COMMAND MODE SELECT
SW1 SW2 SW3 SW4 Address SW6 Mode
OFF OFF OFF OFF 00H OFF Normal command
ON OFF OFF OFF 01H ON Graphic DMA
OFF ON OFF OFF 02H
ON ON OFF OFF 03H OPERATING MODE SELECT
OFF OFF ON OFF 04H SW7 Mode
ON OFF ON OFF 05H OFF Normal Operation
OFF ON ON OFF 06H ON Memory Re-write
ON ON ON OFF 07H
OFF OFF OFF ON 08H PROTOCOL MODE SELECT
ON OFF OFF ON 09H SW8 Mode
OFF ON OFF ON 0AH OFF Direct Mode
ON ON OFF ON 0BH ON Packet Mode
OFF OFF ON ON 0CH
ON OFF ON ON 0DH
OFF ON ON ON 0EH
ON ON ON ON 0FH
BAUD RATE SELECT
SW5 Baud Rate
OFF 38,400
ON 19,200
Subject to change without notice.
IUK Doc Ref:04466 Iss:1 11Feb05
MODULE BLOCK DIAGRAM
Controller
-40°C to +85°C
-40°C to +85°C
20 to 80% RH @ 25°C
VFD Glass
Flash ROM
Nagoya Japan: +81 (0)52-561-9867
Rest Europe: +49 (0)61-0520-9220
DC/DC
RAM
Noritake Sales Office Tel Nos
Canada: +1-416-291-2946
Chicago USA: +1-847-439-9020
Munchen (D): +49 (0)89-3214-290
Itron UK: +4 4 (0)1493 601144
www.noritake-itron.com
Converter
CONTACT
NORITAKE ITRON VFD MODULES 256 x 128 Dot Graphic
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