EA LED68x51-R ELECTRONIC ASSEMBLY, EA LED68x51-R Datasheet - Page 2

• Manufacturer Part Number: EA LED68x51-R
• Description: LCD Graphic Display Modules & Accessories Red LED Backlight For DOG-L Series
• Manufacturer: ELECTRONIC ASSEMBLY

Specifications of EA LED68x51-R

• Pixel Density: 128 x 64
• Module Size (w X H X T): 68 mm x 51 mm x 3.6 mm
• Viewing Area (w X H): 64 mm x 36 mm
• Backlighting: Red
• Background Color: Red
• Operating Temperature Range: - 20 C to + 70 C
• Interface: SPI
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

EA DOG
Page 2
EA DOG
The EA DOG
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 (68x51 mm) with a large viewing area of 64x36 mm
* Super-flat: 2.8 mm without backlight module, and only 6.5 mm with a b./l. module mounted
* Serial SPI interface (4-wire)
* Single supply +3.0 V or +3.3 V or dual power supply +1.8..3.3V
* Typical power consumption of only 320µA 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 DOG
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 a
higher voltage.
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.
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 2 protective films on the top and the bottom (except the version DOG
that does have 1 foil on the top only), 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.
L
128
L
128, a 128x64-pixel graphics display, is a new addition to ELECTRONIC ASSEMBLY’s EA DOG
L
128-6
EA LED68x51-W
EA LED68x51-G
EA LED68x51-A
EA LED68x51-E
EA LED68x51-B
EA LED68x51-R
LED68x51-RGB
LED backlight
yellow/green
full color
amber
green
white
blue
red
EA
typ. 4V
min
red
Forward voltage (V)
typ. 4V
green
typ
2,1
3,3
2,1
3,1
3,3
2
typ. 4V
blue
max
ELECTRONIC ASSEMBLY reserves
the right to change specifications
without prior notice. Printing and
typographical
Current
60 each
colour
max.
(mA)
L
60
45
60
45
45
60
series. The contrast
@3,3 V
CAT4238
CAT4238
CAT4238
Limiting resistor
20
24
24
errors
(ohm, each
-
path)
reserved.
@5 V
L
47
39
52
33
39
52
15
128L
L