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PDF LC2421 Data sheet ( Hoja de datos )

Número de pieza LC2421
Descripción LCD
Fabricantes ETC 
Logotipo ETC Logotipo



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No Preview Available ! LC2421 Hoja de datos, Descripción, Manual

LC2421www.DataSheet4U.com
24 characters x 2 lines
ABSOLUTE MAXIMUM RATINGS
Item
Symbol
Min.
Max.
Unit
Supply Voltage(Logic) VDD- VSS
-0.3
7.0 V
Supply Voltage(LCD) VDD- VO
-0.3
13.0 V
Input Voltage
VI
-0.3
VDD+ 0.3
V
Operating Temp. Topr -20
70 C
Storage Temp.
Tstg -30
80 C
âELECTRICAL 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
VDD - VO
Test
Condition
--
--
IOH = - 0.2mA
IOL = 1.2mA
VDD = 5.0V
Ta=25 C
Min.
2.2
- 0.3
2.4
0
--
--
Typ.
--
--
--
--
1.5
4.6
Max. Unit
VDD V
0.6 V
VDD V
0.4 V
3.0 mA
-- V
BLOCK DIAGRAM
VSS
VDD
VO
RS
R/W
E
DB0
DB7
LEDA
LEDK
LCD
Controller
LSI
KS0066
or Eqv.
16 COM
LCD PANEL
24 Characters x 2 Lines
40 SEG
80 SEG
Segment driver
LED Backlight
MECHANICAL DATA
Item Nominal Dimensions
Module Size ( W x H x T ) 118.0 x 36.0 x 9.5/14.0
Viewing Area ( W x H ) 93.5 x 15.8
Character Size ( W x H ) 3.20 x 5.55
Dot Size ( W x H )
0.60 x 0.65
Weight (Reflective/LED) Approx. 42 / 56
Unit
mm
mm
mm
mm
g
PIN CONNECTIONS
Pin Symbol
1 VSS
2 VDD
3 VO
4 RS
Level
0V
+5V
--
H/L
5 R/W
H/L
6E
H,H _>L
7 DB0
H/L
8 DB1
H/L
9 DB2
H/L
10 DB3
H/L
11 DB4
H/L
12 DB5
H/L
13 DB6
H/L
14 DB7
H/L
15 LEDA +5V
16 LEDK 0V
Function
GND
Power supply for logic
Operating voltage for LCD
H : Data
L : Instruction code
H : Read
L : Write
Enable signal
In 8-bit bus mode, used as low
order bidirectional data bus.
In 4-bit bus mode, open these
pins.
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.
Power supply for LED backlight
LED BACKLIGHT SPECIFICATIONS (Ta=25 C)
Item Symbol
Forward Voltage
Vf
Forward Current
Emission Wave Length
If
λp
Typ.
4.1
150
568
Max.
4.3
--
--
Unit
V
mA
nm

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