RoHS 2002/95/EC
VACUUM FLUORESCENT DISPLAY
MODULE
SPECIFICATION
MODEL: GU256X64F-9900
SPECIFICATION
DATA OF ISSUE
REVESION
NO.
:
DS-1529-0000-00
: July 03, 2008
:
November 05, 2008
PUBLISHED BY
NORITAKE ITRON CORP. / JAPAN
This specification is subject to change without prior notice.
This product complies with RoHS Directive 2002/95/EC
GU256X64F-9900 1/15
1.General Description
1.1 Scope
This specification covers the requirements of vacuum fluorescent graphic display module,
Model:GU256X64F-9900.
Applied reliability spec:
Applied production spec:
1.2 Construction
TT-99-3102
TT-98-3413
The module consists of a graphic BD-VFD which does have the dot configuration of 64X256,
a refresh RAM, a character generator, a DC/DC converter, a display controller and all
necessary control logics.
The module can display graphic patterns and /or characters in a screen of the VFD.
2. Absolute Maximum Ratings
Parameter
Power Supply Voltage
Logic Input Voltage
3. Electrical ratings
Parameter
Power Supply Voltage
Symbol
V
CC
Min.
4.75
Typ.
5.0
Max.
5.25
Unit
V
DC
Symbol
V
CC
V
IN
Min.
0
0
Typ.
-
-
Max.
5.5
Vcc+0.3
Unit
V
DC
V
DC
All driving voltage for the VFD is converted from the DC/DC converter on board.
4. Electrical Characteristics
Measuring Conditions : TA (Ambient temperature) = 25degrees, V
CC
=5.0V
DC
Parameter
Symbol Min.
Typ. Max. Unit
Condition
"H" V
IH
3.5
-
Vcc V
DC
-
Logic Input Voltage
-
-
1.5 V
DC
-
"L"
V
IL
Logic Output Voltage
"H"
"L"
V
OH
V
OL
I
CC
1
I
CC
2
4.0
-
-
-
-
-
1.2
0.9
-
0.4
1.6
1.2
V
DC
V
DC
A
A
I
OH
=-2mA
I
OL
=4mA
Note
-
-
-
-
(1)
(2)
Power Supply Current 1
Power Supply Current 2
Note
(1),(2) ICC1 shows the cuurent at all dots in the screen are lighted and ICC2 at all dots off. At power
on rush, more than 2times current of above table should be expected. Provide the quick rise type
power supply (<100msec.).
After power-on, data and commands cannot be received for 80msec.
before inputting data or commands.
Please wait 80msec minimum
GU256X64F-9900 2/15
5. Optical Specifications
Number of dots
PCB Size
Display area
Dot size
Dot pitch
Luminance
Color of illumination
Weight
6. Environmental Specifications
Operating temperature
Storage temperature
Storage humidity
Vibration
Shock
:
:
:
:
:
:
:
:
:
:
:
:
:
16384(256x64)
230.0 mm X 78.0 mm (X×Y)
166.25 mm X 41.45 mm
(X×Y)
0.5 mm X 0.5 mm
(X×Y)
0.65 mm X 0.65 mm
(X×Y)
350cd/m
2
Min (500cd/m
2
Typ.)
Green(Blue Green)
307(g)
-40 to +85degrees
-40 to +85degrees
20 to 80 % R.H(Non Condensation)
10-55-10Hz, all amplitude 1mm, 30Min., X-Y-Z(Non operating)
539m/s
2
(55G) 10mS(Non operating)
7. Functions Of Data Lines
Data Line Function
Data Bus(Input / Output)
D0½D7
WR
RD
CS
C/D
FRP
BL
Vcc
GND
Write Signal(Input)
Read Signal (Input)
Chip Select Signal(Input)
Command / Data Select Signal(Input)
C/D = "1"
…
Command
C/D = "0"
…
Data
Frame Signal(Output)
(1 output pulse per 1 display frame)
Display Blanking Signal(Input)
Input Voltage
Ground
GU256X64F-9900 3/15
8. Construction and Major Functions
The module consists of 1 PC boards, control logics and DC/DC converter.
The display memory ( RAM ) has the capacity of 8k bytes and it can be memorized 4 screen pages at
graphic mode and 8 screen pages at character mode(see para.11).
The module can display graphic patterns and /or characters in a screen of the VFD.
The display screens can be alternative as the screen #1 for graphic only and the screen #2 for character
and graphic. Therefore, 4 different display combinations are available as follows.
・Graphic
display only ( use the screen #1 or #2 )
・Character
display only ( use the screen #2 )
・Merge
2 graphic displays such as OR/EX-OR/AND ( use the screen #1 and #2 )
・Graphic(use
the screen #1)and Character(use the screen#2)displays such as OR/EX-OR/AND
The display pattern data can be written/read to/from the graphic screen and the display character code
can be written/read to/from the character screen using data bus.
A character consists of 6 x 8 dots.
Since display start address can be set independently at both the screen #1 and #2, scrolling or page
rolling might be also available independently.
Within the graphic screen, left and right scroll by 1 line ( 1 dot ) unit is doable and the character screen
can be able the upper and lower scroll by 1 column(8dots)unit.
8.1 Block Diagram
D0-D7
BD-VFD
WR
RD
CS
C
／
D
BL
FRP
ROM
RAM
(C.G)
DISPLAY
COTROLLER
RAM
(8K)
Ef
VBB
GND
Vcc(+5V)
DC
／
DC
CONVERTER
Ef
VBB
GU256X64F-9900 4/15
8.2 The Relationship of Display Memory and Command
(XXH show the commands which will be described hereafter)
D0-D7
The Screen #1
Display start
address
08H
09H
Data
2k bytes
0AH
0BH
Address
2k bytes
The Screen #2
Display start
address
Cursor Address
( for Screen
#1 and #2 )
0CH
0DH
Address
2k bytes
04H, 05H
0EH, 0FH
Address
2k bytes
1FFFH
1FF8H
0000H
Disp
Memory
(RAM)
0007H
The Screen #1
Graphic Pattern
The Screen #2
Chr.
Code
Graphic Pattern
Character
Generator
(6X8 dots)
Switch
Chr./
Graph
06H,07H
OR Disp. (10H)
EX-OR Disp. (11H)
AND Disp. (12H)
Disp. ON/OFF SW
(00H-03H)
Screen
Luminance
(18H
½
1BH)
Display
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