Datasheet

EA DOGM128-6
Page 7
ELECTRONIC ASSEMBLY reserves
the right to change specifications
without prior notice. Printing and
typographical errors reserved.
12:00 VIEWING ANGLE, TOP VIEW OPTION
If the display is read mostly from above (on the front of a laboratory power supply unit,
for example), the preferred angle of viewing can be set to 12 o’clock. This rotaties the
display by 180°. A slightly different initialization setup is required
for this. Also keep in mind that the leftmost column (normally
numbered as 0) will now change to 4.
Assembling for 12:00 (Top View)
Initialisation example top view
Command
A0 D7 D6 D5 D4 D3 D2 D1 D0 He x
Remark
(8) ADC set 0 1 0 1 0 0 0 0 0 $A0 ADC normal
(15) Common output mode select 0 1 1 0 0 1 0 0 0 $C8 Reverse COM63~COM0
TOUCH PANEL EA TOUCH128-1 (OPTIONAL)
An analog touch panel is available as an accessory. It has a self-adhesive material on its rear surface and is simply stuck
onto the display. The connection is made by means of a 4-pin flexible cable for a ZIF connector (e.g. EA WF100-04S)
with a grid of 1.0 mm. Bending radius is defined with min. 5mm. For optimum readability we recommend that you use
a backlight with the display.
Interfacing to a processor can be either done by an external touch panel controller or with a controller that is featured
with analogue input. The touch panel is similar to a potentiometer: connecting
a voltage of e.g. 3.3V to the pins
Top-Bottom makes it possible to read
out a voltage on pin Left or Right
which is linear to the Y-coordinate of
the pressed point. The X-coordinate
will result when the voltage will be
supplied to Left-Right and
measurement is done at Top or
Bottom.
The pinout of the connecting cable is
shown in the drawing.
Specification
Specification min max Unit
Top-Bottom 120 300
Ω
Left-Right 580 900
Ω
Voltage 3 12 V
Current 5 25 mA
Linearity 1,5 %
Force 45 65 g
Contact Bounce 5 10 ms
Op. Temperatur -20 +60 °C
Stor. Temperatur -20 +70 °C
Transmission 75 85 %
Life Time 10000 Cycles
ZIF CONNECTOR EA WF100-04S
As an accessory for the touch panel we do
provide a ZIF connector (4 pins) with pitch
1.0mm (SMD type). This connector „bottom
side contact“ type.
alle dimensions are in mm