DMF-50773NF-SLY View Datasheet(PDF) - Optrex Corporation
Part Name
Description
MFG CO.
'DMF-50773NF-SLY' PDF : 17 Pages View PDF
4.I/O Terminal
4.1.Pin Assignment
No.
Symbol
1
FGND
2
GND
3
VDD
4
VEE
5
WR
6
RD
7
CE
8
C/D
9
NC
10
RESET
11
D0
12
D1
13
D2
14
D3
15
D4
16
D5
17
D6
18
D7
19
FS
20
RV
21
LED ANODE
22 LED CATHODE
Level
－
―
―
―
H/L
H/L
H/L
H/L
－
H/L
H/L
H/L
H/L
H/L
H/L
H/L
H/L
H/L
H/L
H/L
－
－
Function
Frame Ground
Power Supply (0V, GND)
Power Supply for Logic
Power Supply for LCD Drive
Write Signal L : Active
Read Signal L : Active
Chip Enable Signal L : Active
Write Mode H : Command Write L : Data Write
Read Mode H : Status Read L : Data Read
Non-connection
Reset Signal L : Reset
Display Data
Display Data
Display Data
Display Data
Display Data
Display Data
Display Data
Display Data
Font Switch H : 6×8 dots L : 8×8 dots
Display Data Reverse Signal H : Negative L : Positive
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.
VDD
VEE
MODULE
VDD (+Voltage)
Tr
R1
VR
R2
VEE (-Voltage)
VSS
R1+R2+VR=10～20K Ω
Tr=2SA1202 or equivalent
VSS (0V)
DMF-50773NF-SLY (AB) No.99-0082
OPTREX CORPORATION
OPTREX
Page 9/17
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