Issue 8.2012
DOG SERIES 3.3V
INCL. CONTROLLER ST7036 FOR 4-/8-BIT, SPI (4-WIRE)
EA DOGM163B-A
blue
!
. off at
pc
for 1 .8mm fl
e
ilabl LED: 5
ava
h
n wit
EA DOGM081S-A
eve
+ EA LED55x31-W
EA DOGM162E-A
+ EA LED55x31-G
EA DOGM163W-A
+ EA LED55x31-W
EA LED55x31-W
white
EA DOGM081W-A
+ EA LED55x31-B
EA DOGM162W-A
+ EA LED55x31-A
TECHNICAL DATA
*
*
*
*
*
*
*
*
*
HIGH-CONTRAST LCD SUPERTWIST DISPLAY
OPTIONAL LED BACKLIGHT UNITS IN DIFFERENT COLORS
1x8, 2x16 AND 3x16 WITH 12.0 mm / 5.6 mm AND 3.6 mm CHARACTER HEIGHT
ST 7036 CONTROLLER FOR 4-BIT, 8-BIT AND SPI (4-WIRE) INTERFACE
POWER SUPPLY +3.3V OR +5V SINGLE SUPPLY (typically 250µA)
NO ADDITIONAL VOLTAGES REQUIRED
OPERATING TEMPERATURE RANGE -20 THROUGH +70°C
LED BACKLIGHT 3 through 80mA@3.3V or 2 through 40mA@5V
NO MOUNTING REQUIRED, SIMPLY SOLDER INTO PCB
ORDERING CODE
LCD MODULE 1x8 - 11.97mm
LCD MODULE 2x16 - 5.57 mm
LCD MODULE 3x16 - 3.65mm
x: B
= blue background
E
= yellow/green background
L
= yellow/green background (cannot be backlit)
S
= black background
W
= white background
EA DOGM081x-A
EA DOGM162x-A
EA DOGM163x-A
LED BACKLIGHT, WHITE
LED BACKLIGHT, YELLOW/GREEN
LED BACKLIGHT, BLUE
LED BACKLIGHT, RED
LED BACKLIGHT, AMBER
LED BACKLIGHT, FULL COLOR RGB
USB TEST BOARD FOR PC (WINDOWS)
SOCKET CONNECTOR 4.8 mm HIGH (1x20-PIN, 2.54mm PITCH)
EA LED55X31-W
EA LED55X31-G
EA LED55X31-B
EA LED55X31-R
EA LED55X31-A
EA LED55X31-RGB
EA 9780-2USB
EA FL-20P
EA DOG-M
EA DOG SERIES
With its EA DOG series, ELECTRONIC ASSEMBLY presents the world’s first display series which
will run on 3.3 V systems without auxiliary power. They can, of course be used on traditional 5 V
systems.
Unlike normal LCD modules, you order the display and the corresponding backlight separately. This
gives you a wealth of possible combinations.
Designed for compact hand-held devices, this modern LCD range provides a number of real benefits
with or without backlight:
* extremely compact at 55 x 31 mm at the standard font size of 5.57 mm (2 x 16)
* ultra-flat at 2.0 mm without backlight or 5.8 mm including LED backlight
* 4-bit, 8-bit and SPI interface (4-wire)
* typical power consumption of only 250µA in full operation (LED white backlight as of 3mA)
* easy installation by simply soldering into the board
* A whole range of design variants (63) can be supplied as of single units
* Changing background color
SETTING THE CONTRAST
The contrast on all displays of the EA DOG series can be set with a command. This is done using
bits C0 through C5 in the commands "Contrast Set" and "Power/Icon Control/Contrast Set". Generally,
the contrast is set once and kept constant across the entire operating temperature range (-20 through
+70°C) thanks to the integrated temperature compensation function.
Even when run at 3.3 V, the displays do not require any additional negative voltage!
LED BACKLIGHTS
6 different variants are available for individual backlighting:
white, yellow/green, blue, red, amber and full color.
For monochrome backlights, 2 separate LED paths are
available, which can be switched in parallel or in series to
ideally match the system voltage. This means that all the
backlights can be run either at 5 V or at 3.3 V.
Operation of the backlight requires an external series
resistor for current limiting. This can be calculated from
R=U/I; you will find the values in the table. To improve life
time it is recommanded to use a current source only.
The operating life of the yellow/green, red and amber
backlights is 100,000 hours and that of the white and blue
backlights much shorter.
Important: Never operate the backlight directly on a 5 V/
3.3V supply, as this can immediately destroy the LEDs!
INSTALLATION
First, the display and the corresponding backlight are
clipped together. The complete unit is then inserted into a
PCB and soldered. Note that the 4 pins for the backlight
must also be soldered from the top.
Important: There are one or two protective films on the
display (top and/or rear side) and one on each backlight.
Those have to be removed during or after production.
yellow/green
EA LED55x31-G
Connected in parallel
Connected in series
Forwar
voltage
2,2 V
4,4 V
Current
max.
80 mA
40 mA
Limiting resistor
@ 3,3 V
14 ohm
-
@5V
35 ohm
15 ohm
white
EA LED55x31-W
Connected in parallel
Connected in series
Forwar
voltage
3,2 V
6,4 V
Current
max.
60 mA
30 mA
Limiting resistor
@ 3,3 V
1,6 ohm
-
@5V
30 ohm
-
blue
EA LED55x31-B
Connected in parallel
Connected in series
Forwar
voltage
3,2 V
6,4 V
Current
max.
60 mA
30 mA
Limiting resistor
@ 3,3 V
1,6 ohm
-
@5V
30 ohm
-
amber
EA LED55x31-A
Connected in parallel
Connected in series
Forwar
voltage
2,4 V
4,8 V
Current
max.
80 mA
40 mA
Limiting resistor
@ 3,3 V
11 ohm
-
@5V
32 ohm
5 ohm
red
EA LED55x31-R
Connected in parallel
Connected in series
Forwar
voltage
2,1 V
4,2 V
Current
max.
80 mA
40 mA
Limiting resistor
@ 3,3 V
15 ohm
-
@5V
36 ohm
20 ohm
Full color
EA LED55x31-RGB
Connected in parallel
Forwar
voltage
4V
Current
max.
125 mA
Limiting resistor
@3,3 V
-
@5V
3x24 ohm
Page 2
Printing and typographical errors reserved.
ELECTRONIC ASSEMBLY reserves the right to change specifications without prior notice.
EA DOG-M
5 DIFFERENT TECHNOLOGIES
As a standard we provide 5 different technologies as STN and FSTN:
display color
readability
non
backlighted
readable even
without
backlight
display type
technology
optional
backlight
display color
recommended
with
backlight color
backlighted
FSTN pos.
transflective
it's fine with and
without backlight
black on white
black on backlight
color
white, blue, 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, RGB
STN pos.
yellow/green
reflective
no backlight
possible
finest readable
without
backlight
dark green on
yellow/green
---
---
3 DIFFERENT DISPLAYS
These displays are available for mentioned technologies:
6 DIFFERENT BACKLIGHTS
6 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 LED55x31-W
White
EA LED55x31-G
Yellow/Green
EA LED55x31-B
Blue
EA LED55x31-R
Red
EA LED55x31-A
Amber
EA LED55x31-RGB
Full Color
When you can see black and white pictures only here on this page then you're able to download a
coloured version from our website
http://www.lcd-module.de/eng/pdf/doma/dogme.pdf
Printing and typographical errors reserved.
ELECTRONIC ASSEMBLY reserves the right to change specifications without prior notice.
Page 3
EA DOG-M
APPLICATION EXAMPLES
Different wiring must be used depending on the interface and the power supply. 2 additional capacitors
are required for 3.3 V operation.
Note that the COG technology means that the current capacity of the outputs is limited. Therefore, a
large load on the bus may cause signal loops and unclean levels. If in doubt, additional pull-down
resistors (8051) are required or additional waits/NOPs must be incorporated.
USB-TEST BOARD EA 9780-2USB
For easy startup, a USB test board is available that can be connected to a PC. An USB cable and a
Windows software is supplied with the product. This allows individual text and to be displayed directly
on the connected display.
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_v20.zip
Page 4
Printing and typographical errors reserved.
ELECTRONIC ASSEMBLY reserves the right to change specifications without prior notice.
EA DOG-M
CHARACTER SET
The below show character set is already built-in. In addition to that you are able to define 8 characters
by your own.
A detailed description for integrated controller
http://www.lcd-module.de/eng/pdf/zubehoer/st7036.pdf
ST7036
you
can
find
under
Printing and typographical errors reserved.
ELECTRONIC ASSEMBLY reserves the right to change specifications without prior notice.
Page 5
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