DMC-20434N-EB Optrex America Inc, DMC-20434N-EB Datasheet - Page 8
![no-image](/images/no-image-200.jpg)
DMC-20434N-EB
Manufacturer Part Number
DMC-20434N-EB
Description
LCD MODULE 20X4 STN EL/BACKLIGH
Manufacturer
Optrex America Inc
Series
DMC-20434r
Specifications of DMC-20434N-EB
Display Type
STN - Super-Twisted Nematic
Display Mode
Transmissive
Number Of Digits/alpha
80
Outline L X W X H
98.00mm x 60.00mm x 11.00mm
Viewing Area
76.00mm L x 25.20mm W
Backlight
EL - Blue/Green
Display Format
20 x 4
Character Size
4.75mm H x 2.95mm W
Character Format
5 x 8 Dots
Voltage - Supply
5.0V
Dot Size
0.55mm W x 0.55mm H
Interface
Parallel
Operating Temperature
0°C ~ 50°C
Other names
73-1088
OP420EB
OP420EB
No.
4.I/O Terminal
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
DMC20434N-EB (AK) No.2000-0215
4.1.Pin Assignment
4.2.Example of Power Supply
It is recommended to apply a potentiometer for the contrast adjust due to the tolerance
of the driving voltage and its temperature dependence.
Symbol
DB0
DB1
DB2
DB3
DB4
DB5
DB6
DB7
R/W
V
V
V
RS
EL
EL
E
CC
EE
SS
Level
H / L
H / L
H / L
H / L
H / L
H / L
H / L
H / L
H / L
H / L
H / L
MODULE
-
-
-
-
-
VR=10 ~ 20K Ω
Power Supply (0V, GND)
Power Supply for Logic
Power Supply for LCD Drive
Register Select Signal
Read/Write Select Signal H : Read L : Write
Enable Signal (No pull-up Resister)
Data Bus Line / Non-connection at 4-bit operation
Data Bus Line / Non-connection at 4-bit operation
Data Bus Line / Non-connection at 4-bit operation
Data Bus Line / Non-connection at 4-bit operation
Data Bus Line
Data Bus Line
Data Bus Line
Data Bus Line
Power Supply for EL
Power Supply for EL
VCC
VSS
VEE
VR
OPTREX
OPTREX CORPORATION
VCC (+Voltage)
VSS (0V)
Function
Page 8/16