Dot Graphic VFD Module
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GU256x32D-K610A8
The module includes the VFD glass, VF drivers and micro-
controller, character generation, interface logic and transformer-
less DC/DC converter. The interface type is selected by a push
button on the back of the module. Auto key scanning and general
I/O are available on port PA0 – PA7 for user control.
2.5
CON1
Pin Async
1 5V
2 Nc
3 RXD
4 Nc
1.6 5 0V
6 Nc
6.7
7 TXD
8 /RES
9 MB
10 HB
SPI
5V
SCK
/SS
SIN
0V
SOUT
/IRQ
/RES
MB
NC
I2C
5V
Nc
SCL
Nc
0V
Nc
SDA
/RES
MB
NC
CON2
Pin Signal
1 0V
2 ENABLE
3 PA0
4 PA1
5 PA2
6 PA3
7 PA4
8 PA5
9 PA6
10 PA7
256 x 32 High Brightness Dot Graphic Display
Single 5V DC Supply
4 ASCII Fonts ( 5x5, 5x7, 10x14, 7x15 )
Asynchronous, SPI, I2C & Parallel interfaces
8 User I/O Pins with Key Scanning Capability
1
14.25 24.5 31.5
6.38
18.5
1
CON3
1
CON2
115.0
152.0
159.0
18.5
CON1
3.5
3.5
Dimensions in mm & subject to tolerances.
Uses patent applied PSU which has no inductive components.
Brown out detector active when RES is not connected.
Nc = Do Not Connect
ELECTRICAL SPECIFICATION
Parameter
Sym
Min
Supply Voltage
Vcc
4.5
Supply Current
Icc
-
Logic High Input
V
IH
3.0
Logic Low Input
V
IL
-0.5
Logic High Output
V
OH
4.2
Logic Low Output
V
OL
-
CHARACTER SETS
Typ
5.0
500
-
-
-
-
Max
5.25
-
Vcc
1.5
-
0.6
Unit
V
mA
V
V
V
V
Condition
V
SS
=0V
Vcc=5V All dots
V
CC
=5V
V
CC
=5V
I
OH
= -3mA Vcc=5V
I
OL
= 20mA
MINI FONT
5x7, 7x15 & 10x14 FONTS
ENVIRONMENTAL and OPTICAL SPECIFICATION
Parameter
Value
Display Area (XxY mm)
115.05 x 14.25
Dot Size/Pitch (XxY mm)
0.3 x 0.3/0.45 x 0.45
2
Luminance
650 cd/m Typ
Colour of Illumination
Blue-Green (Filter for colours)
Operating Temperature
-40°C to +85°C
Storage Temperature
-40°C to +85°C
Operating Humidity (non condensing)
10 to 90% @ 25°C
SOFTWARE COMMAND SUMMARY
Command Type
Description
Cursor Move
Character Write
Graphic Write
Macro Write
Area Control
Window Control
Scroll
Flash / Wipe
Font Select
Key Scan
I/O Port
Brightness
Power On/Off
Set Up Display
ASCII commands for Back Space, Horizontal Tab, Line Feed, Home,
Vertical Tab, Carriage Return and Cursor Position
Display a character from the selected font and increments the cursor
according to the write mode.
Write graphical data directly to a display area in either orientation. It is
important to disable Hex receive mode. Set or clear individual pixels.
Store combinations of commands and data in up to 8 macros to reduce
host communication time. Macro 0 operates at power on.
Set, clear, invert and outline an area of the display for easy creation of
highlights and menu screens.
Pre-define 2 areas of the display as windows in which commands and
data for scroll, flash, wipe and pattern are active.
Vertically or horizontally scroll data in either direction within an area
defined by window 1. Space padding, speed and repeat options.
Flash selected window’s contents. / Perform a wipe action on the
selected window with predefined user patterns / wallpaper.
Select proportional mini font, fixed spaced 5x7 font, fixed spaced 10x14
font. Use the extended font command for 7x15 font or advanced settings.
Set I/O port to key scanning. The I/O ports are continuously scanned for
any key press and the connectivity data output to the serial port.
Set I/O port direction. A ‘1’ indicates an input, a ‘0’ indicates an output. All
output lines are immediately set low.
Set the display brightness. Level = F8H - FFH. F8H = display off. F9H =
minimum, FFH = maximum
(default).
Auto-fade to a defined level.
Turn on VFD power supply
(default)/Turn
off VFD power supply (display’s
contents will be preserved). Current consumption is about 25mA.
Set the serial communication interface. Clear or reset the display. Lock or
unlock the EEPROM for macros and setup configuration.
The module defaults to a 4 line of 42 character display using
the 5x7 font with single pixel spacing. The cursor position
auto increments after each character write. The bottom left of
a character is placed at the cursor x,y. The M(odule) Busy
line indicates the module is busy when high. Connect the
H(ost) Busy input to the MBusy to disable handshaking. Use
the rear SMT button to select the configuration which is then
stored in EEPROM. To send commands as hexadecimal,
prefix the 2 bytes using character 60H.
Example: `10`3F`01 = Position dot x=64 y=1. To send
character 60H to the display, send 60H twice.
Please note that the module defaults to HEX Receive
Mode.
Subject to change
without notice.
Software command
syntax and port pin
out Copyright 2006
Noritake Co. Limited
.
Doc Ref: 40183 Iss.6
01 October 08
CONTACT
Noritake Sales Office Tel Nos
Nagoya Japan: +81 (0)52-561-9867
Canada: +1-416-291-2946
Chicago USA: +1-847-439-9020
Munchen (D): +49 (0)89-3214-290
Itron UK: +44 (0)1493 601144
Rest Europe: +49 (0)61-0520-9220
www.noritake-itron.com
NORITAKE ITRON VFD MODULES
GU256x32D-K610A8
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