Interface Pin Function
Pin No.
Symbol
Level
Description
1
DB7
H/L
Data bus line
2
DB6
3
DB5
4
DB4
5
DB3
6
DB2
7
DB1
8
DB0
9
E1
H,H→L
Chip enable signal
10
R/W
H: Read(Module-MPU) L: Write(MPU-Module)
11
RS
H: DATA, L: Instruction code
12
VO
(Variable)
Operating voltage for LCD
13
VSS
0V
Ground
14
VDD
5.0V
Supply Voltage for logic
15
E2
16
NC
—
17
A
Power Supply for LED+
18
K
Power Supply for LED-
Item
Dimension
Unit
Number of Characters
40 characters x 4Lines
-
Module dimension
190.0 x 54.0 x 13.6 (MAX)
mm
View area
147.0 x 29.5
Active area
140.45 x 23.16
Dot size
0.50 x 0.55
Dot pitch
0.57 x 0.62
Character size
2.78 x 4.89
Character pitch
3.53 x 6.09
LCD type
STN Positive, Gray Transflective
(In LCD production, It will occur slightly color difference. We can only guarantee the same color in the same batch.)
Duty
1/16
View direction
6 o’clock
Backlight Type
LED, Yellow Green
IC
ST7066U
Interface
68 series
Absolute Maximum Ratings
Min
Typ
Max
Operating Temperature
TOP
-20
+70
°C
Storage Temperature
TST
-30
+80
Input Voltage
VI
V
Supply Voltage For Logic
VDD-VSS
-0.3
Supply Voltage For LCD
VDD-Vo
Condition
4.5
5.0
5.5
*Note
VDD-V0
Ta=-20°C Ta=25°C Ta=70°C
4.2
3.8
4.35
5.7
V V V
Input High Volt.
VIH
0.7 VDD
Input Low Volt.
VIL
0.6
Output High Volt.
VOH
3.9
Output Low Volt.
VOL
0
0.4
Supply Current
IDD
VDD=5.0V
1.8
3.5
7.0
mA
Optical Characteristics
View Angle
θ
CR≧2
20
ψ= 180°
40
ψ= 0°
30
ψ= 90°
ψ= 270°
Contrast Ratio
CR
Response Time
T rise
150
200
ms
T fall
For quantities above 25 pcs pls send your enquiry to sales@first-components.com or call +39 0332 1888005