PIN CONNECTIONS
|
Pin
|
Symbol
|
Level
|
Function
|
|
1
|
VSS
|
0V
|
GND
|
|
2
|
VDD
|
+5V
|
Power supply for logic
|
|
3
|
VO
|
-
|
Operating voltage for LCD
|
|
4
|
A0
|
H/L
|
"H" Data,
"L" Instruction code
|
|
5
|
R/W
|
H/L
|
"H" Read, "L" Write
|
|
6
|
E
|
H/L
|
Enable signal
|
7
|
14
|
DB0
|
DB7
|
H/L
|
Data bus line
|
|
15
|
LEDA
|
+5V
|
Power supply for LED backlight
|
|
16
|
LEDK
|
0V
|
NOTES:
1. Built-in ST7920 controller
2. Yellow green/blue mode optional
|
|
MECHANICAL DATA
|
Item
|
Nominal Dimensions
|
Unit
|
|
Module Size(W x H x T)
|
80.0X36.0X13.2
|
mm
|
|
Viewing Area (W x H )
|
66.0X16.0
|
mm
|
|
Dot Pitch (W x H)
|
0.42X0.42
|
mm
|
|
Dot Size (W x H)
|
0.38X0.38
|
mm
|
ABSOLUTE MAXIMUM RATINGS
|
Item
|
Symbol
|
Min.
|
Max.
|
Unit
|
|
Supply Voltage (Logic)
|
VDD-VSS
|
-0.3
|
7.0
|
V
|
|
Supply Voltage (LCD)
|
V0-VSS
|
-0.3
|
7.0
|
V
|
|
Input Voltage
|
VI
|
-0.3
|
VDD+0.3
|
V
|
|
Operating Temp.
|
TOPR
|
-20
|
70
|
℃
|
|
Storage Temp.
|
TSTG
|
-30
|
80
|
℃
|
ELECTRICAL CHARACTERISTICS (VDD=5.0V, Ta=25℃)
|
Item
|
Symbol
|
Min.
|
Typ.
|
Max.
|
Unit
|
|
Input High Voltage
|
VIH
|
2.0
|
-
|
VDD
|
V
|
|
Input Low Voltage
|
VIL
|
-0.3
|
-
|
0.6
|
V
|
|
Output High Voltage
|
VOH
|
2.4
|
-
|
VDD
|
V
|
|
Output Low Voltage
|
VOL
|
0
|
-
|
0.4
|
V
|
|
Supply Current
|
IDD
|
-
|
1.4
|
1.8
|
mA
|
|
LCD Driving Voltage
|
VO-VSS
|
-
|
4.7
|
-
|
V
|
LED BACKLIGHT SPECIFICATIONS (Ta=25℃)
|
Item
|
Forward Voltage
|
Forward Current
|
|
YELLOW-GREEN
|
4.1V
|
100mA
|
|
White
|
3.1V
|
30mA
|
|
