LC4041
40 characters x 4 lines
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
-30
Max.
7.0
13.0
V
DD
+ 0.3
70
80
Unit
V
V
V
C
MECHANICAL DATA
Item
Nominal Dimensions
Unit
mm
mm
mm
mm
g
Module Size ( W x H x T ) 190.0 x 54.0 x 10.0/14.5
147.0 x 29.5
Viewing Area ( W x H )
2.78 x 4.97
Character Size ( W x H )
0.5 x 0.56
Dot Size ( W x H )
Weight (Reflective/LED)
Approx. 95 / 125
C
ELECTRICAL CHARACTERISTICS ( V
DD
=5V 0.25V )
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
= - 0.2mA
I
OL
= 1.2mA
V
DD
= 5.0V
Ta=25 C
Min.
2.2
- 0.3
2.4
0
--
--
Typ.
--
--
--
--
3.0
4.6
Max. Unit
V
DD
0.6
V
DD
0.4
5.0
--
V
V
V
V
mA
V
芒
PIN CONNECTIONS
Pin
1
2
3
4
5
6
7
8
9
Symbol
DB7
DB6
DB5
DB4
DB3
DB2
DB1
DB0
E1
R/W
RS
V
O
V
SS
V
DD
E2
NC
LEDA
LEDK
Level
H/L
H/L
H/L
H/L
H/L
H/L
H/L
H/L
_
H,H >L
H/L
H/L
--
0V
+5V
_
H,H >L
--
+5V
0V
Function
In 8-bit bus mode, used as high
order bidirectional data bus.
In 4-bit bus mode, used as both
high and low order data bus.
In 8-bit bus mode, used as low
order bidirectional data bus.
In 4-bit bus mode, open these
pins.
Enable signal 1
H : Read
L : Write
H : Data
L : Instruction code
Operating voltage for LCD
GND
Power supply for logic
Enable signal 2
No connection
Power supply for LED backlight
BLOCK DIAGRAM
4 Control Signals
Segment driver
10
11
V
SS
V
DD
V
O
RS
R/W
E1
E2
DB0
DB7
40 SEG
LCD
Controller
LSI
KS0066
or Eqv. x 2
16 COM
40 SEG
160 SEG
160 SEG
16 COM
LCD PANEL
40 Characters x 4 Lines
12
13
14
15
16
17
18
LED BACKLIGHT SPECIFICATIONS (Ta=25 C)
Item
Symbol
V
f
I
f
Typ.
4.1
500
568
Max.
4.3
--
--
Unit
V
mA
nm
Forward Voltage
Forward Current
Emission Wave Length
LEDA
LEDK
Segment driver
LED Backlight
4 Control Signals
位
p
1
