DMF-50840NB-FW View Datasheet(PDF) - Optrex Corporation
Part Name
Description
Manufacturer
DMF-50840NB-FW Datasheet PDF : 18 Pages
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4.I/O Terminal
4.1.Pin Assignment
CN1
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Symbol
D0
D1
D2
D3
DISPOFF
FLM
NC
LP
CP
VCC
VSS
VEE
VADJ
FG
CN2
No.
5
6
7
8
Symbol
CFL HOT
NC
NC
CFL GND
Level
H/L
H/L
H/L
H/L
H/L
H/L
－
H→L
H→L
―
―
―
―
－
Function
Display Data
Display Data
Display Data
Display Data
H : Display on L : Display off (Pull up Resister)
First Line Marker
Non-connection
Data Latch Signal
Clock Signal for Shifting Data
Power Supply for Logic
Power Supply (0V, GND)
Power Supply for LCD Drive
Voltage Level for LCD Contrast Adjustment
Frame Ground
Level
－
－
－
－
Function
Power Supply for CFL (HOT)
Non-connection
Non-connection
Power Supply for CFL (GND)
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
VADJ
MODULE
VEE
VCC (+Voltage)
R1
VR
R2
VEE (-Voltage)
VSS
R1+R2+VR=10～20K Ω
VSS (0V)
DMF-50840NB-FW (AA) No.99-0101
OPTREX CORPORATION
OPTREX
Page 10/18
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