DMC-20171 Optrex America Inc, DMC-20171 Datasheet - Page 7
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DMC-20171
Manufacturer Part Number
DMC-20171
Description
LCD MODULE 20X1 CHARACTER
Manufacturer
Optrex America Inc
Series
DMC-20171r
Specifications of DMC-20171
Display Type
TN - Twisted Nematic
Display Mode
Reflective
Number Of Digits/alpha
20
Outline L X W X H
*
Viewing Area
154.00mm L x 15.30mm W
Backlight
Without Backlight
Display Format
20 x 1
Character Size
11.50mm H x 6.70mm W
Character Format
5 x 7 CURS
Voltage - Supply
5.0V
Dot Size
1.30mm W x 1.30mm H
Interface
*
Operating Temperature
0°C ~ 50°C
Other names
73-1021
OP120
OP120
No.
4.I/O Terminal
10
11
12
13
14
1
2
3
4
5
6
7
8
9
4.1.Pin Assignment
4.2.Example of Power Supply
DMC20171 (AA) No.2000-0077
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
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
VCC
VSS
VEE
VR
OPTREX
OPTREX CORPORATION
VCC (+Voltage)
VSS (0V)
Function
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