DOGM GRAPHIC SERIES
132x32 DOTS
4.2011
flex
ible
cont display
ent
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EA DOGM132B-5 +
EA LED55x31-W
EA DOGM132W-5 +
EA LED55x31-A
TECHNICAL DATA
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EA DOGM132W-5 +
EA LED55x31-W
HIGH-CONTRAST LCD SUPERTWIST DISPLAY (STN AND FSTN) WITH 15µm DOT GAP
OPTIONAL LED BACKLIGHTS IN VARIOUS COLORS
132x32 PIXELS (CORRESPONDS TO 4x22 CHARACTERS OR 2x16 LARGE CHARACTERS)
ST 7565R CONTROLLER WITH SPI (4-WIRE) INTERFACE
POWER SUPPLY: SINGLE SUPPLY 2.4..3.3V (TYPICALLY 140µA)
NO ADDITIONAL VOLTAGES REQUIRED
OPERATING TEMPERATURE RANGE -20°C TO +70°C (STORAGE -30°C TO +80°C)
LED BACKLIGHTING 5..45mA
NO MOUNTING REQUIRED: SIMPLY SOLDER ONTO PCB
ORDERING CODE
GRAPHICS DISPLAY, 132x32, 55x31mm
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 DOGM132X-5
LED BACKLIGHT, WHITE
LED BACKLIGHT, YELLOW/GREEN
LED BACKLIGHT, BLUE
LED BACKLIGHT, RED
LED BACKLIGHT, AMBER
LED BACKLIGHT, FULL COLOR RGB
EA
EA
EA
EA
EA
EA
LED55X31-W
LED55X31-G
LED55X31-B
LED55X31-R
LED55X31-A
LED55X31-RGB
ACCESSORIES
USB TEST BOARD FOR PC (WINDOWS)
EA 9780-2USB
SOCKET CONNECTOR 4.8 mm HEIGHT (2 PCS. ARE REQUIRED)
EA FL-20P
FONTEDITOR WITH CHARACTER SETS e.g. 6x8, 8x8, 8x16, CYRILLIC
EA USBSTICK-FONT
Zeppelinstrasse 19 · D-82205 Gilching · Phone +49-(0)8105-778090 · Fax: +49-(0)8105-778099 · www.lcd-module.de · info@lcd-module.de
EA DOGM132-5
Page 2
ELECTRONIC ASSEMBLY reserves
the right to change specifications
without prior notice. Printing and
typographical errors reserved.
EA DOGM132
The EA DOGM132, a 132x32-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. 6 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 (55x31 mm) with a large viewing area of 51x15 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 +2.4 V or +3.3 V
* Typical power consumption of only 140µA 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
6 different variants are available for individual backlighting: white, yellow/
green, blue, red, amber and a full-color version.
There are 2 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 external series resistor to limit the current. This can
be calculated from R=U/I; you can find the values in the table on the
right. To prolong the life of the backlights, we recommend that you use a
current source.
The operating life of the yellow/green, red and amber backlights is 100,000
hours. The life of the white and blue backlights is considerably shorter.
We recommend that you dim these or switch them off whenever possible.
Important: Never connect the backlight LEDs directly to a 5 V/
3.3 V supply as this will immediately destroy the LEDs. Always
use a current source. Please note that derating applies at
temperatures exceeding +25°C.
yellow/green
EA LED55x31-G
Connected in parallel
Connected in series
Forward
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
Forward
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
Forward
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
Forward
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
ASSEMBLING
@ 3,3 V
@5V
First, clip the display and backlight modules together by gently pushing
the display pins through the corresponding holes on the backlight module.
Connected in parallel
2,1 V 80 mA 15 ohm 36 ohm
-
20 ohm
Then insert the entire module into the socket, or into the soldering holes
Connected in series
4,2 V 40 mA
on the pcb. The backlight pins (the 2 rows with 3 pins at the bottom) must
Limiting resistor
Full color
be soldered on the top side as well to ensure good contact between the
EA LED55x31-RGB Forward Current
voltage
max.
@3,3 V
@5V
modules.
Connected in parallel
4V
125 mA
-
3x24 ohm
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.
red
EA LED55x31-R
Forward
voltage
Current
max.
Limiting resistor
ELECTRONIC ASSEMBLY reserves
the right to change specifications
without prior notice. Printing and
typographical errors reserved.
EA DOGM132-5
Page 3
5 DIFFERENT TECHNOLOGIES
See below for an overview of available technologies, combinations with available backlights and their usability:
Display color
Display color
non
Readability
with backlight
backlighted
even without
backlight
readable
Display
Technology
Optional
backlight
usage is possible
with and without
backlight module
Required
backlight
EA DOGM132W
FSTN pos.
transflective
EA DOGM132E
STN pos.
yellow/green
transmissive
EA DOGM132B
STN neg. blue
transmissive
black on white
black on backlight
color
white, blue,
amber, RGB
backlight module is
necessary
even without
backlight
readable
dark green on
yellow/green
black on
yellow/green
yellow/green
backlight module is
necessary
---
---
backlight color on
blue~black
background
white,
yellow/green
EA DOGM132S
FSTN neg.
transmissive
EA DOGM132L
STN pos.
yellow/green
reflective
backlight module is
necessary
---
---
backlight color on
black background
white, amber,
RGB
no backlight
possible
good at
"normal"
ambient
brightness
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 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
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/dogm132-5e.pdf
EA DOGM132-5
Page 4
ELECTRONIC ASSEMBLY reserves
the right to change specifications
without prior notice. Printing and
typographical errors reserved.
APPLICATION EXAMPLES
LOW POWER
+3.0V or +3.3V (single supply) operation
requires 8 external capacitors. Current
consumption typ. 110uA
WIDE RANGE
The operation on +2.4..+3.3V (single
supply) requires 9 external capacitors.
Current consumption is typ. 150uA.
LOW VOLTAGE
If an external source of +9..+12V (does not have
to be stabilized) is available, the charge pump is
not needed and less external components are
required. Supply and logic voltage may be
1.8..3.3V
ELECTRONIC ASSEMBLY reserves
the right to change specifications
without prior notice. Printing and
typographical errors reserved.
EA DOGM132-5
Page 5
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
@3.3V, 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
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