Sharp LT1448MA Datasheet
(K-L)
ON
1/fosc
V
D (n) data ON
t d
WKNA
(K-A)
t d
(A-K)
Internal
out
out
t
CLOCK
RDATA
GDATA
RDATA
GDATA
LATCH
ENABLE
RENABLE
GENABLE
ADDRESS
(A0, A1)
VD (n+1) data ON
V
D (n+1)VD (n)
OFF
t d
(L-A)
ON
OFF
ON
t d
VD (N+1) VD (n+2) data
t d t d
t d
D
t WL
t S U t h
t
WCLK
(C-L) (L-C)
(L-K)
t d
Dot Matrix LED Unit for Outdoor Use LT1448MA(Lamp Type,Water-proof Type)
Parameter
Supply voltage for IC
Supply voltage for LED
IC current dissipation
*1
LED current dissipation
*1
Input voltage
Input current
Clock frequency
Frame frequency
Symbol
V
DD
VLED
IDD
ILED
VIH
VIL
IIH
IIL
fCLK
fFR
MIN.
4.75
4.25
------
------
3.5
------
------
------
-----250
TYP.
5.0
4.5
400
6.0
------
------
------
------
-----400
MAX.
5.25
4.75
800
7.0
------
1.5
0.1
0.12
10
3 000
Unit
V
V
mA
A
V
V
µA
mA
MH
Z
HZ
(VCC=5V,VLED=4.5V,Ta=25˚C)
*1 Under the condition that dichromatic all dots are lit.
Connector
Power supply
(CN1)
Input signal
(CN2)
Output signa
l
(CN3)
Symbol
V
LED
VCC
GND1
GND2
A0,A1
RDATA
GDATA
LATCH
RENABLE
GENABLE
CLOCK
GND1
A0,A1
RDATA
GDATA
LATCH
RENABLE
GENABLE
CLOCK
GND1
Function
Supply voltage for LED(+4.5V)
Supply voltage for IC(+5V)
Ground for IC
Ground for LED
Address specification signal for column driver
Serial data input for each color(H:ON, L:OFF)
Shift from up to down in the unit
(H
D48/HD63/HD32/HD47/HD16/HD31/HD0/HD15)
Latch signal of display data
L/H: Contents of shift register are latched.
Controls ON/OFF of each color of LED
(H: LED OFF)
Clock signal for data transmission in the shiftregister.(L
/
H: serial data is shifted.)
Ground for signal (Connected to ground for IC)
Buffered input signal
Input signal generated through 64-bit shift register or
buffer
Buffered input signal
Buffered input signal
Buffered input signal
Ground for signal (Connected to ground for IC)
Each signal is used as input signal for next unit.
* As for the terminal number, refer to the outline dimensions.
MONO-MULTI
473
331
HC541
Luminance adjustment circuit
Input/output circuit
A0
A1
RENABLE
RDATA
GDATA
CLOCK
VR1
H D0
H D48
OUTIN
OSC
VR2
HC123
LATCH
GENABLE
GND1
PNP DRIVER
3 to 8 DECODER
A0
A1
RENABLE
RDATA
GDATA
CLOCK
LATCH
GENABLE
GND1
H D15
H D16
H D31
H D32
H D47
H D63
16bit SHIFT REGISTER/
LATCH/DRIVER
16bit SHIFT REGISTER/
LATCH/DRIVER
16bit SHIFT REGISTER/
LATCH/DRIVER
16bit SHIFT REGISTER/
LATCH/DRIVER
16bit SHIFT REGISTER/
LATCH/DRIVER
16bit SHIFT REGISTER/
LATCH/DRIVER
16bit SHIFT REGISTER/
LATCH/DRIVER
16bit SHIFT REGISTER/
LATCH/DRIVER
H D0
H D48
H D15
H D16
H D31
H D32
H D47
H D63
16✕16
Dot matrix LED
V D0
V D15
Radiation color
Red
Yellow-green
1
1 100
700
2
1 300
800
Unit
cd/m
2
(VCC=5V,VLED=4.5V,Ta=25˚C)
Rank
Luminance is classified into 2 ranks shown below.
■ Features
¡No. of dots : 16✕16dots
¡Outline dimensions : 160✕160mm
¡Dot size : ø7.5mm(Using oval lamp)
¡Dot pitch : 9.9mm
¡
Radiation color : Yellow-green+Red(High-luminosity)dichromatic type
¡Driving method : 1/4 duty dynamic drive
LT1448MA
■ Absolute Maximum Ratings ■ Electrical Characteristics
Parameter
Supply voltage for IC
Supply voltage for LED
Input voltage
Turn-on time
Operating temperature
Storage temperature
Power dissipation
■ Optical Characteristics
Parameter
Viewing angle(Horizontal)
Peak emission wavelength
Red
Yellow-green
Symbol
V
VLED
VI
tON
Topr
Tstg
P
Symbol
1
/2
2θ
λ
p
DD
Rating
-0.3 to +5.5
-0.3 to +5.0
-0.3 to Vcc+0.3
1
-10 to +45
-20 to +100
38
(VCC=5V,VLED=4.5V,Ta=25˚C)
TYP
70
660
565
(Ta=25˚C)
Unit
V
V
V
ms
˚C
˚C
W
Unit
˚
nm
■ Timing Chart
■ Luminance
■ Terminal Functions
■ Block Diagram
In the absence of confirmation by device specification sheets, SHARP takes no responsibility for any defects that may occur in equipment using any SHARP
devices shown in catalogs, data books, etc. Contact SHARP in order to obtain the latest device specification sheets before using any SHARP device.
(Notice) ¡
(Internet) ¡Data for sharp's optoelectronic/power device is provided for internet.(Address http://www.sharp.co.jp/ecg/)
169
159
P10✕13=130 9.59.5
159
9.5
2.5
9.5P10✕13=130
156
154
60 60
256-ø7.5
1
1
VR1
VR2
CN2
5
7
CN1
15
69.75
51
69.75
7
CN3
1
49
21
Depth7
15.84
70
6-M3
31
7 RDATA
CN2(Input signal)
4 GND
GENABLE
2
5 CLOCK
3 LATCH
1 GDATA
5 CLOCK
6 RENABLE6 RENABLE
3 LATCH
1 GDATA
GENABLE
4 GND
2
7 RDATA
CN3(Output signal)
1 VLED
Pin connection
CN1(Power supply)
4 GND
5 VLED
3 VCC
2 GND
130
157
15
23
52
38
1.6t
151813.3
H
D16
H
D31
V
D15
P9.0✕15=
P9.0✕15=
Data shift direction
135
144
256-ø7.5LED
D0
H
135
144
4-M3(Depth 6MIN.)
Hexagonal spacer ASB315
V
D0
D15
H
LATCH
1 Ao
23A1
A2
CN3(Output signal)
10
5 RDATA
6 GDATA
8 GENABLE
9 CLK
GND1
7
GND2
1
2
3
Ao
A1
A2
VDD
VLED
VLED
6
5
4
3
2
1
GND1
10
5 RDATA
6 GDATA
7 LATCH
8
9 CLK
GND1
GND2
6
1
19.8
10
125.58
1
10
4 RENABLE
22.5
125.58
15
CN1
4
CN3 CN2
RENABLE
GENABLE
CN2(Input signal)
CN1(Power supply)
1
Pin connection
RADJ
P14.9✕15=223.5
239.2
P14.9✕15=223.5
120.0
HD16
HD31
HD0
HD15
119.6
VD0 VD15
11.0
MAX.
Height (Except CN1 to 3)
80.0
206.0
11.0 18.0 16.6
206.0
190.0
217.0
CN1
6
177.0
60.0
1
50.050.0
10
1
CN3
10
2-ø3.0
(Height3)
Positioning pin
Water-proof rubber
8-ø7.0 concave
217.0
119.6119.6
159.0
P2.5✕9=22.5
P3.96✕5=19.8
145.0
12-
(M3)
Insert nut
6
Depth
MIN.
45.0
10.0
9.0
1
GADJ
CN2
4.0
6.5
ø
7.0
ø
1 A0
2
3
4
5
6
7
8
9
10
A1
A2
RENABLE
RDATA
GDATA
LATCH
GENABLE
CLOCK
GND1
CN2
Pin No.
Name
Pin connection
(Input signal)
1 A0
2
3
4
5
6
7
8
9
10
A1
A2
RENABLE
RDATA
GDATA
LATCH
GENABLE
CLOCK
GND1
Pin No.
Name
(Output signal)CN3
1 VLED
2
3
4
VLED
Vcc
GND1
CN1
Pin No.
Name
(Power supply)
5 GND2
6 GND2
25.025.0
256-13.0 ✕ 13.0
Data shift direction
11
HD0
148.5
(P9.9✕15)
Data shift direction
HD15
VD0
22.5
19.8
159.5
61
59.4
46.5
10647159
61
59.4
Water-proof ring
159
148.5
HD16
(P9.9✕15)
HD32
HD48
HD13 HD47 HD63
59.4 59.4
10
CN3
VR2
VR1
159
132
1
20
20
55 ø3 Boss
Height 3
10
1
CN2
CN1
6
1
6-M3(Depth10)
VD15
22
Pin connection
CN1:Power supply
1 VLED
2 VLED
3 Vcc
4 GND1
5 GND2
6 GND2
CN2:Input signal
1 A0
2 A1
3 GND1
4 RENABLE
5 RDATA
6 GDATA
7 LATCH
8 GENABLE
9 CLK
10 GND1
11.612
CN3:Output signal
1 A0
2 A1
3 GND1
4 RENABLE
5 RDATA
6 GDATA
7 LATCH
8 GENABLE
9 CLK
10 GND1
LT1448MA
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