DMC20434N Optrex, DMC20434N Datasheet - Page 7

• Manufacturer Part Number: DMC20434N
• Description: LCD Module
• Manufacturer: Optrex

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No.
4. I/O Terminal
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4.1. Pin Assignment
4.2. Example of Power Supply
DMC20434N (AJ) No.97-0208
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
SS
EE
Level
H / L
H / L
H / L
H / L
H / L
H / L
H / L
H / L
H / L
H / L
H / L
MODULE
–
–
–
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
VR=10~20 K
VCC
VSS
VEE
VR
OPTREX CORPORATION
VCC (+Voltage)
VSS (0V)
Function
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