Issue 10.2014
DOGM GRAPHIC SERIES
128x64, 3.3V
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b./l.
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with L
6mm
at: 5.
fl
EA DOGM128B-6 +
EA LED55x46-W
EA DOGM128W-6 +
EA LED55x46-A
EA DOGM128W-6 +
EA LED55x46-W
TECHNICAL DATA
*
*
*
*
*
*
*
*
*
HIGH-CONTRAST LCD SUPERTWIST DISPLAY (STN AND FSTN) WITH 15µm DOT GAP
OPTIONAL LED BACKLIGHTS IN VARIOUS COLORS
128x64 PIXELS (CORRESPONDS TO 8x21 CHARACTERS OR 4x10 LARGE CHARACTERS)
ST 7565R CONTROLLER WITH SPI (4-WIRE) INTERFACE
POWER SUPPLY: SINGLE SUPPLY 3.0V TO 3.3V (TYPICALLY 270µA)
NO ADDITIONAL VOLTAGES REQUIRED
OPERATING TEMPERATURE RANGE -20°C TO +70°C (STORAGE -30°C TO +80°C)
LED BACKLIGHTING 5mA TO 40mA
NO MOUNTING REQUIRED: SIMPLY SOLDER ONTO PCB
ORDERING CODE
GRAPHICS DISPLAY, 128x64, 55x46mm
x: W
= white background (FSTN pos. transflective)
E
= yellow/green background (STN pos. transmissive)
B
= blue background (STN neg. transmissive)
S
= black background (FSTN neg. transmissive)
L
= yellow/green background (STN pos. reflective, cannot be backlit)
EA DOGM128x-6
LED BACKLIGHT, WHITE
LED BACKLIGHT, YELLOW/GREEN
LED BACKLIGHT, BLUE
LED BACKLIGHT, RED
LED BACKLIGHT, AMBER
LED BACKLIGHT, GREEN
LED BACKLIGHT, FULL COLOR RGB
EA LED55X46-W
EA LED55X46-G
EA LED55X46-B
EA LED55X46-R
EA LED55X46-A
EA LED55X46-E
EA LED55X46-RGB
ACCESSORIES
USB TEST BOARD FOR PC (WINDOWS)
TOUCH PANEL, 4-WIRE, ANALOG, STICK-ON
ZIF CONNECTOR FOR TOUCH PANEL, BOTTOM CONTACT
SOCKET CONNECTOR 4.8 mm HEIGHT (2 PCS. REQUIRED)
EA 9780-2USB
EA TOUCH128-1
EA WF100-04S
EA FL-20P
DOGM GRAPHIC SERIES
EA DOGM128
The EA DOGM128, a 128x64-pixel graphics display, is a new addition to ELECTRONIC ASSEMBLY’s EA DOGM
series. It, too, has pins that allow it to be mounted quickly and easily. 7 different optional LED backlights are
available. These can be combined with 5 different display technologies, making it possible to have up to around
20 different designs. Designed for compact, handheld devices, this modern LCD series offers a number of benefits
with and without backlighting:
* Extremely compact (55x46 mm) with a large viewing area of 51x31 mm
* Super-flat: 2.0 mm without backlight module, and only 5.8 mm with a b./l. module mounted
* Serial SPI interface (4-wire)
* Single supply +3.0 V or +3.3 V
* Typical power consumption of only 270µA in full operation (white LED backlight from 5mA)
* Easily mounted by soldering
* Wide range of design variants orderable as single units
* Backlighting color changes possible
CONTRAST ADJUSTMENT
The contrast can be set by means of a command for all the displays in the EA DOGM series. The contrast setting
of the display must be set once by the software, and is then kept constant throughout the entire operating
temperature range (-20..+70°C), thanks to the integrated temperature compensation.
LED BACKLIGHT
7 different variants are available for individual backlighting: white, yellow/green, green, blue, red, amber and a
full-color version.
There are 3 separate LED paths available for each monochrome backlight that can be switched in parallel or in
series to suit the system voltage. This means that most backlights can be run at either 3.3 V or 5 V.
To operate the backlight, we recommend a
current source (e.g. CAT4238TD) or an
Current Limiting resistor
Forward voltage (V)
(ohm, each path)
max.
LED backlight
external series resistor to limit the current. This
(mA)
min
typ
max
@3,3 V
@5 V
can be calculated from R=U/I; you can find
yellow/green
the values in the table on the right. To prolong
2,1
40
40
97
EA LED55x46-G
the life of the backlights, we recommend that
white
CAT4238
3,3
25
82
you use a current source.
EA LED55x46-W
The operating life of the yellow/green, red and
amber
1,9
40
47
103
EA LED55x46-A
amber backlights is 100,000 hours. The life
green
of the white and blue backlights is
3
40
8,5
57
EA LED55x46-E
considerably shorter. We recommend that you
blue
CAT4238
3,3
30
68
dim these or switch them off whenever
EA LED55x46-B
possible.
red
1,9
40
47
103
Important: Never connect the backlight LEDs
EA LED55x46-R
directly to a 5 V/3.3 V supply as this will
red
green
blue
full color
40 each
CAT4238
25
immediately destroy the LEDs. Always use a
EA LED55x46-RGB
colour
typ. 4V
typ. 4V
typ. 4V
current source. Please note that derating
applies at temperatures exceeding +25°C.
ASSEMBLING
First, clip the display and backlight modules together by gently pushing the display pins through the corresponding
holes on the backlight module. Then insert the entire module into the socket, or into the soldering holes on the
pcb. The backlight pins (the 2 rows with 3 pins at the bottom) must be soldered on the top side as well to ensure
good contact between the modules.
Important: The display has a protective film on the top and/or the bottom, and there is also one on the
backlight. These must be removed.
Make sure that neither display nor backlight will never come into contact with any kind of liquid like
Fluxer, Cleaner, Water.
Page 2
Printing and typographical errors reserved.
ELECTRONIC ASSEMBLY reserves the right to change specifications without prior notice.
DOGM GRAPHIC SERIES
5 DIFFERENT TECHNOLOGIES
See below for an overview of available technologies, combinations with available backlights and their usability:
optional
backlight
display color
readability
non
backlighted
display color
with
backlighted
recommended
backlight
color
display type
technology
FSTN pos.
transflective
it's fine with and
without backlight
readable even
without
backlight
black on white
black on backlight
color
white, blue, green,
RGB
STN pos.
yellow/green
transmissive
backlight unit
required
readable even
without
backlight
dark green on
yellow/green
black on
yellow/green or
amber
yellow/green,
amber
STN neg. blue
transmissive
usage only with
backlight
---
---
backlight color on
blue background
white, yellow/green
FSTN neg.
transmissive
usage only with
backlight
---
---
backlight color on
black background
white, green, RGB
STN pos.
yellow/green
reflective
no backlight
possible
finest readable
without
backlight
dark green on
yellow/green
---
---
6 AND MORE DIFFERENT BACKLIGHTS
6 and more different backlight colors are available to match equipments design as much as possible. The most
effective and brightest one is the white one EA LED55x31-W.
EA LED55x46-W
White
EA LED55x46-G
Yellow/Green
EA LED55x46-B
Blue
EA LED55x46-R
Red
EA LED55x46-A
Amber
EA LED55x46-E
Green
If you see black and white pictures on this page but you want to see the
colors of the displays, you can download a full-colored version of this
document at
http://www.lcd-module.de/eng/pdf/grafik/dogm128e.pdf
EA LED55x46-RGB
Full Color
Printing and typographical errors reserved.
ELECTRONIC ASSEMBLY reserves the right to change specifications without prior notice.
Page 3
DOGM GRAPHIC SERIES
APPLICATION EXAMPLES
+3.0V or +3.3V (single supply) operation
requires 9 external capacitors
If an external source of +10.5 ~ +13.5V (does not have to be
stabilized) is available, the charge pump is not needed and
less external components are required.
USB-TEST BOARD EA 9780-2USB
For easy startup, a USB test board is available that can be connected to a PC. A USB cable and Windows
software is supplied with the product. This allows text and images (BMP) to displayed directly on the connected
display. You will find more information on the test board in the EA 9780-2USB
data sheet.
SIMULATION WITH WINDOWS
A simulator window also displays the contents of the display. The software can
simulate all the displays and colors even without the hardware. You can download
the software free from our website:
http://www.lcd-module.de/deu/disk/startdog.zip
Page 4
Printing and typographical errors reserved.
ELECTRONIC ASSEMBLY reserves the right to change specifications without prior notice.
DOGM GRAPHIC SERIES
TABLE OF PROGRAMMING COMMANDS
DATA TRANSFER
Data transfer is unidirectional. That means that data can only be written; it cannot be read again. In contrast to
other displays, a busy query is not necessary with this display. The clock-pulse rate of the SCL line can be up
to 20 MHz, depending on the supply voltage. You will find more detailed information on timing on pages 64 and
65 of the data sheet of the ST7565R controller, which you will find on our website at
http://www.lcd-module.de/eng/pdf/zubehoer/st7565r.pdf
Printing and typographical errors reserved.
ELECTRONIC ASSEMBLY reserves the right to change specifications without prior notice.
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