EA EDIP240J-7LWTP ELECTRONIC ASSEMBLY, EA EDIP240J-7LWTP Datasheet - Page 7

• Manufacturer Part Number: EA EDIP240J-7LWTP
• Description: LCD Graphic Display Modules & Accessories White/Black Contrast With Touch Screen
• Manufacturer: ELECTRONIC ASSEMBLY

Specifications of EA EDIP240J-7LWTP

• Pixel Density: 240 x 128
• Fluid Type: FSTN Positive
• Module Size (w X H X T): 113 mm x 70 mm x 13 mm
• Viewing Area (w X H): 91.18 mm x 56.3 mm
• Backlighting: White
• Background Color: Black
• Operating Temperature Range: - 20 C to + 70 C
• Attached Touch Screen: Yes
• Interface: RS-232, I2C BUS, or SPI BUS
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

I²C BUS INTERFACE
Wiring the display as shown below allows the display to be operated directly on an I²C bus.
4 different base addresses and 8
different slave addresses can be
selected at the display.
A data transmission rate of up to
100kHz is possible.
If transmitter will pause for min.
100 µs between each byte, SCL
may rise u to max. 400 kHz.
Note:
At pin 20 (SBUF), the display sets a low
level to indicate that data is available to be
fetched from the internal send buffer. This
line can, for instance, be connected to an
interrupt input of the host system.
Note:
The pins BA0 to 2, SA0 to 2, DPOM, DPROT and TEST/SBUF have an internal pullup, which is why only the LO level
(L=0=GND) is to be actively applied. These pins must be left open for a Hi level (H=1).
On pin 20 (SBUF) the display indicates with a low level that data is ready to be retrieved from the internal send buffer.
The line can be connected to an interrupt input of the host system, for example.
DATA TRANSFER I²C-BUS
principle I2C-bus transfer:
Read operation: for internal
operation the EA eDIP240-7 does
need a short time before providing
the data; therefore a short pause of
min. 6µs is needed for each byte (no
activity of SCL line).
Specifications may be changed without
prior notice. Printing error reserved
- I²C-Start
- Master-Transmit: EA eDIP-I²C-address (e.g. $DE), send smallprotocol package (data)
- I²C-Stop
- I²C-Start
- Master-Read: EA eDIP-I²C-Address (e.g. $DF), read ACK-byte and opt. smallprotocoll package (data)
- I²C-Stop
Pin
10
11
12 I2CMODE
13
14
15
16
17 EEP_SDA Bidir. Serial Data Line for int. EEPROM
18 EEP_SCL
19 EEP_WP
20
1
2
3
4
5
6
7
8
9
Symbol
RESET
DPOM
VOUT
VADJ
BUZZ
TEST
SBUF
GND
VDD
SDA
BA0
BA1
SA0
SA1
SA2
BA2
SCL
In/Out Function
Bidir. Serial Data Line
Out
Out
Out
Out
IN
In
In
In
In
In
In
In
In
In
In
In
-
-
-
Ground Potential for logic (0V)
Power supply for logic (+5V)
Operating voltage for LC driving
(input)
Output voltage for LC driving
L: Reset
Basic Address 0
Basic Address 1
Slave Address 0
Slave Address 1
Slave Address 2
Basic Address 2 (V1.3 or later)
connect to GND for I²C interface
L: disable Power-On-Macro
do not connect for normal operation
Serial Clock Line
Buzzer output
Serial Clock Line for int. EEPROM
H: Write Protect for int. EEPROM
open-drain with internal pullup 20..50k
IN (Power-On) L: Testmode
OUT L: data in sendbuffer
Pinout eDIP240-7
I²C-Bus mode
BA2 BA1 BA0
H
H
H
H
L
L
L
L
Pin 11,7,6
H
H
H
H
L
L
L
L
Pin Symbol Function
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
H
H
H
H
L
L
L
L
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
address
Base
$D0
$10
$20
$30
$40
$70
$90
$B0
EA eDIP240-7
I²C - Address
not connected
not connected
not connected
not connected
not connected
not connected
not connected
not connected
not connected
not connected
not connected
not connected
not connected
not connected
not connected
not connected
not connected
not connected
not connected
not connected
Application example
D7
0
0
0
0
0
1
1
1
all pins open: Write $DE
D6
0
0
0
1
1
0
0
1
D5
0
1
1
0
1
0
1
0
I²C address
D4
1
0
1
0
1
1
1
1
D3
S
A
2
Read $DF
D2
S
A
1
Page 7
D1
S
A
0
D0
R
W