Sharp LT1447M Datasheet
Parameter
Supply voltage for IC
Supply voltage for LED
Input voltage
Turn-on time
Operating temperature
Storage temperature
Power dissipation
Symbol
V
CC
VLED
VI
tON
Topr
Tstg
P
Rating
-0.3 to +6.0
-0.3 to +5.5
-0.3 to V
CC+
0.3
1
-10 to +45
-25 to +85
35
Unit
V
V
V
ms
˚C
˚C
W
(Ta=25˚C)
Parameter
Supply voltage for IC
Supply voltage for LED
IC current dissipation
LED current dissipation
*1
Input voltage
Input current
Clock frequency
Frame frequency
Symbol
V
CC
VLED
ICC
ILED
VIH
VIL
IIH
IIL
fCLK
fFR
MIN.
4.75
4.5
------
------
3.5
------
------
------
------
125
TYP.
5.0
5.0
270
5.0
------
------
------
------
-----200
MAX.
5.25
5.25
350
6.0
------
1.5
0.1
0.12
3.0
------
Unit
V
V
mA
A
V
V
µA
mA
MH
Z
HZ
(VCC=5V,VLED=5V,Ta=25˚C)
*1 Under the condition that dichromatic all dots are lit.
tsu th
CLOCK
R&G
DATA
DATA out
R&G
t
WCLK
VD(n+2) dataVD(n+1) data
LATCH
Internal
ENABLE
R&G
ENABLE
ADDRESS
(A0 to A2)
tWL
tdD
td(E-L)
td(E-L) td(A-E)
td(L-A)
td(C-L)
td(L-E)
1/fOSC
ON ON ON
OFF OFF
V
D(n) data ON
VD(n) VD(n+1)
VD(n+1) data ON
t
WENA
td(L-C)
Dot Matrix LED Unit for Outdoor Use LT1447M(Lamp Type)
Parameter
Viewing angle
Peak emission wavelength
Symbol
2
2θ
1
/2
λp
TYP
40
660
565
Unit
˚
nm
(VCC=5V,VLED=5V,Ta=25˚C)
Red
Yellow-green
Each signal is used as input singal for next unit.
*
As for the terminal number, refer to the outline dimensions.
Output signal
(CN3)
Input signal
(CN2)
Power supply
(CN1)
Connector
VLED
Vcc
GND1
RDATA
LATCH
GENABLE
CLOCK
GND1
A0 to A2
RDATA
LATCH
GENABLE
CLOCK
GND1
GDATA
RENABLE
GDATA
Symbol
GND2
RENABLE
Serial data input for red(H=ON, L=OFF)
Shift from up to down in the unit
HD16/HD31/HD0/HD15
Serial data input for yellow-green(H=ON, L=OFF)
Shift from up to down in the unit
HD16/HD31/HD0/HD15
Latch signal of display data H: Serial data is converted
to parallel data. L: Contents are latched.
Controls ON/OFF of yellow-green 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
Buffered input signal
Input signal generated through 32-bit shift
register
Buffered input signal
Input signal generated through 32-bit shift register
Buffered input signal
Buffered input signal
Ground for signal (Connected to ground for IC)
Function
Supply voltage for LED(+5V)
Supply voltage for IC(+5V)
Ground for IC
Ground for LED
Address specification signal for column driver
Controls ON/OFF of red LED
(H: LED OFF)
A0 to A2
SHIFT-REGISTER
16BIT
LATCH AND DRIVER
SHIFT-REGISTER
16BIT
LATCH AND DRIVER
SHIFT-REGISTER
16BIT
LATCH AND DRIVER
SHIFT-REGISTER
16BIT
LATCH AND DRIVER
HC367331
473
Input/output circuit
Luminance adjustment circuit
HC123
VR2
VR1
MONO-MULTI
A0
A1
A2
CLOCK
GENABLE
LATCH
GDATA
RDATA
RENABLE
IN OUT
PNP DRIVER
3 TO 8 DECODER
HD0
HD15
HD0
HD16
HD31
HD31
HD16
VD15
VD0
MATRIX
16✕16 DOT
LED
DICHROMATIC
OSC
A0
A1
A2
CLOCK
GENABLE
LATCH
GDATA
RDATA
RENABLE
Radiation color
Red
Yellow-green
1
600
750
2
800
1 000
Unit
cd/
m
2
(VCC=5V,VLED=5V,Ta=25˚C)
Rank
Luminance is classified into 2 ranks shown below.
■ Features
¡No. of dots : 16✕16dots
¡Outline dimensions : 144✕144mm
¡Dot size : ø7.5mm
¡Dot pitch : 9.0mm
¡
Radiation color : Yellow-green+Red(High-luminosity)dichromatic type
¡Driving method : 1/8 duty dynamic drive
■ Absolute Maximum Ratings
■ Optical Characteristics
■ Electrical Characteristics
LT1447M
■ Timing Chart
■ Luminance
■ Terminal Functions
(Notice) ¡
(Internet) ¡Data for sharp's optoelectronic/power device is provided for internet.(Address http://www.sharp.co.jp/ecg/)
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.
■ Block Diagram
167
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
9 10
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