DMC20434U Optrex, DMC20434U Datasheet - Page 7

• Manufacturer Part Number: DMC20434U
• Description: LCD Module
• Manufacturer: Optrex

www.DataSheet4U.com
4.I/O Terminal
No.
10
11
12
13
14
1
2
3
4
5
6
7
8
9
4.1.Pin Assignment
4.2.Example of Power Supply
DMC20434U (AP) No.2000-0137
It is recommended to apply a potentiometer for the contrast adjust due to the tolerance
of the driving voltage and its temperature dependence.
Symbol
R/W
DB0
DB1
DB2
DB3
DB4
DB5
DB6
DB7
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
Page 7/15