4.I/O Terminal
4.1.Pin Assignment
CN1
No.
Symbol
VSS
Level
－
Function
Power Supply (0V, GND)
Power Supply for Logic
1
2
VCC
－
VEE
－
Power Supply for LCD Drive
Register Select Signal
3
RS
H / L
H / L
H / L
H / L
H / L
H / L
H / L
H / L
H / L
H / L
H / L
－
4
R/W
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
5
E
6
DB0
7
DB1
8
DB2
9
DB3
10
11
12
13
14
15
16
DB4
DB5
Data Bus Line
DB6
Data Bus Line
DB7
Data Bus Line
ANODE
CATHODE
LED Anode Terminal
－
LED Cathode Terminal
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.
VCC
VSS
VEE
VCC (+Voltage)
VSS (0V)
VR
MODULE
～
VR=10 20K
Ω
DMC16128NY-LY (AK) No.98-0102
OPTREX CORPORATION
Page 8/15
OPTREX
OPTREX [ OPTREX CORPORATION ]
