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LG128321-LY fiches techniques PDF

Laurel - LCD Module

Numéro de référence LG128321-LY
Description LCD Module
Fabricant Laurel 
Logo Laurel 





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LG128321-LY fiche technique
LG128321-LY 128 x 32 dots + yellow green led backlight built in Chinese font
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ABSOLUTE MAXIMUM RATINGS
Item Symbol
Supply Voltage(Logic)
Supply Voltage(LCD)
Input Voltage
Operating Temp.
Storage Temp.
VDD - VSS
VO - VSS
VI
Topr
Tstg
Min.
-0.3
-0.3
-0.3
-20
-30
Max.
7.0
7.0
VDD+ 0.3
70
80
MECHANICAL DATA
Unit Item
Nominal Dimensions
V Module Size ( W x H x T ) 84.0 x 44.0 x 14.5
V Viewing Area ( W x H ) 70.0 x 20.0
V Dot Pitch ( W x H )
0.52 x 0.52
°C Dot Size ( W x H )
0.48 x 0.48
°C Weight
Approx. 50
Unit
mm
mm
mm
mm
g
ELECTRICAL CHARACTERISTICS ( VDD=5V±0.25V )
Item
Input High Voltage
Input Low Voltage
Output High Voltage
Output Low Voltage
Supply Current
LCD Driving Voltage
Symbol
VIH
VIL
VOH
VOL
I DD
VO - VSS
Test
Condition
Min.
-- 0.7VDD
-- - 0.3
IOH = - 0.1mA 0.8VDD
IOL = 0.1mA 0
VDD = 5.0V
Ta=25°C
--
--
Typ.
--
--
--
--
3.0
6.0
Max. Unit
VDD V
0.6 V
VDD V
0.4 V
5.0 mA
-- V
BLOCK DIAGRAM
RS(CS)
R/W(SID)
E(SCLK)
/RST
PSB
DB0
DB7
LCD
Controller
LSI
ST7920
32 COM
64 SEG
LCD PANEL
128 x 32 dots
64 SEG
ST7921
VDD
VSS
Power To LSI
LEDA
VO Circuit
LEDK
LED Backlight
PIN CONNECTIONS
Pin Symbol Level
Function
1 VSS
2 VDD
3 VO
4
RS
(CS)
0V GND
+5V Power supply for logic
-- No connection
H : Data L : Instruction Code
H/L (Chip enable for serial mode)
5
R/W
(SID)
H/L
H : Read L : Write
(Serial data for serial mode)
6 E(SCLK) H,H _>L Enable (Clock for serial mode )
7 DB0
H/L
8 DB1
H/L
9 DB2
H/L
10 DB3
11 DB4
H/L Data bus line
H/L
12 DB5
H/L
13 DB6
14 DB7
H/L
H/L
15 PSB H/L H: Parallel mode L: Serial mode
16 /RST L Reset signal, active "L"
17 LEDK 0V Power supply for LED backlight
18 LEDA +5V
LED BACKLIGHT SPECIFICATIONS (Ta=25°C)
Item Symbol
Forward Voltage
Vf
Forward Current
Emission Wave Length
If
λp
Typ.
4.1
120
568
Max.
4.3
--
--
Unit
V
mA
nm

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