LG122322
122 x 32 dots
ABSOLUTE MAXIMUM RATINGS
Item
Supply Voltage(Logic)
Supply Voltage(LCD)
Input Voltage
Operating Temp.
Storage Temp.
Symbol
V
DD
- V
SS
V
DD
- V
O
V
I
T
opr
T
stg
Min.
-0.3
-0.3
-0.3
-20
-20
Max.
7.0
13.5
V
DD
+ 0.3
70
80
Unit
V
V
V
C
MECHANICAL DATA
Item
Module Size ( W x H x T )
Viewing Area ( W x H )
Dot Pitch ( W x H )
Dot Size ( W x H )
Weight (Reflective/LED)
Nominal Dimensions
84.0 x 44.0 x 9.5/13.5
60.5 x 18.5
0.44 x 0.49
0.40 x 0.45
Approx. 30 / 40
Unit
mm
mm
mm
mm
g
C
ELECTRICAL CHARACTERISTICS ( V
DD
=5V
Item
Input High Voltage
Input Low Voltage
Output High Voltage
Output Low Voltage
Supply Current
LCD Driving Voltage
Symbol
V
IH
V
IL
V
OH
V
OL
I
DD
V
DD
- V
O
Test
Condition
--
--
I
OH
= - 3.0mA
I
OL
= 3.0mA
V
DD
= 5.0V
Ta=25 C
Min.
2.0
- 0.3
2.4
0
--
--
â
0.25V )
Typ.
--
--
--
--
0.5
6.5
Max. Unit
V
DD
0.8
V
DD
0.4
1.0
--
V
V
V
V
mA
V
PIN CONNECTIONS
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
Symbol
V
SS
V
DD
V
O
A0
E1
E2
R/W
DB0
DB1
DB2
DB3
DB4
DB5
DB6
DB7
/RST
LEDA
LEDK
Level
0V
+5V
--
H/L
_
H,H >L
_
H,H >L
H/L
H/L
H/L
H/L
H/L
H/L
H/L
H/L
H/L
L
+5V
0V
Function
GND
Power supply for Logic
Operating voltage for LCD
H : Data
L : Instruction code
Enable signal 1
Enable signal 2
H : Read
L : Write
BLOCK DIAGRAM
C1
|
C16
S1----S61
SEG
SED1520DOA
or Eqv.
COM
LCD PANEL
122 x 32 dots
S62----S122
SEG
C17
|
C32
COM
Data bus line
SED1520DOA
or Eqv.
Reset signal, active "L"
Power supply for LED backlight
A0
R/W
DB0~DB7
/RST
E1
E2
V
SS
V
DD
V
O
Power
Circuit
to LSI
LEDA
LEDK
LED Backlight
LED BACKLIGHT SPECIFICATIONS (Ta=25 C)
Item
Forward Voltage
Forward Current
Emission Wave Length
Symbol
V
f
I
f
Typ.
4.1
120
568
Max.
4.3
--
--
Unit
V
mA
nm
λ
p
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