lt1447m Sharp Microelectronics of the Americas, lt1447m Datasheet
lt1447m
Manufacturer Part Number
lt1447m
Description
Matrix Unit Outdoor Lamp Type
Manufacturer
Sharp Microelectronics of the Americas
Datasheet
1.LT1447M.pdf
(2 pages)
(Notice)
(Internet) ¡Data for sharp's optoelectronic/power device is provided for internet.(Address http://www.sharp.co.jp/ecg/)
Dot Matrix LED Unit for Outdoor Use LT1447M(Lamp Type)
¡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
Luminance is classified into 2 ranks shown below.
Each signal is used as input singal for next unit.
* As for the terminal number, refer to the outline dimensions.
Power supply
Peak emission wavelength
Input signal
Output signal
Yellow-green
Connector
(CN1)
Radiation color
(CN2)
(CN3)
Supply voltage for IC
Supply voltage for LED
Input voltage
Turn-on time
Operating temperature
Storage temperature
Power dissipation
Features
Absolute Maximum Ratings
Optical Characteristics
Luminance
Terminal Functions
Red
Viewing angle
¡In the absence of confirmation by device specification sheets, SHARP takes no responsibility for any defects that may occur in equipment using any SHARP
Parameter
Parameter
devices shown in catalogs, data books, etc. Contact SHARP in order to obtain the latest device specification sheets before using any SHARP device.
V
Vcc
GND1
GND2
A0 to A2
RENABLE
RDATA
GDATA
LATCH
GENABLE
CLOCK
GND1
A0 to A2
RENABLE
RDATA
GDATA
LATCH
GENABLE
CLOCK
GND1
Symbol
LED
Yellow-green
Red
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)
Serial data input for red(H=ON, L=OFF)
Shift from up to down in the unit
H
Serial data input for yellow-green(H=ON, L=OFF)
Shift from up to down in the unit
H
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 shift-
register.(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
Input signal generated through 32-bit shift register
Buffered input signal
Buffered input signal
Buffered input signal
Ground for signal (Connected to ground for IC)
D16
D16
600
750
1
Symbol2
/H
/H
2
V
V
V
t
T
T
P
Symbol
ON
opr
stg
1
p
CC
LED
I
D31
D31
/
2
/H
/H
Rank
D0
D0
/H
/H
-0.3 to V
Function
-0.3 to +6.0
-0.3 to +5.5
-10 to +45
-25 to +85
D15
D15
(V
Rating
(V
TYP
660
565
1 000
40
CC
35
800
CC
1
2
CC
=5V,V
=5V,V
+0.3
LED
LED
=5V,Ta=25˚C)
=5V,Ta=25˚C)
(Ta=25˚C)
Unit
ms
˚C
˚C
W
cd/ m
V
V
V
Unit
Unit
nm
˚
2
*1 Under the condition that dichromatic all dots are lit.
Supply voltage for IC
Supply voltage for LED
IC current dissipation
LED current dissipation
Input voltage
Input current
Clock frequency
Frame frequency
Electrical Characteristics
Timing Chart
Block Diagram
A0
A1
A2
RENABLE
RDATA
GDATA
LATCH
GENABLE
CLOCK
Parameter
ADDRESS
IN
DATA out
ENABLE
ENABLE
(A0 to A2)
CLOCK
LATCH
Internal
Luminance adjustment circuit
DATA
R&G
R&G
R&G
OSC
tsu
VR1
*1
MONO-MULTI
V
V
th
V
tdD
D
D
D(
HC123
(n+1) data
(n) data ON
n)
ON
1/f
V
H
H
H
H
td(C-L)
VR2
OSC
D16
D31
D16
D31
D0
td(L-A)
td(E-L)
Symbol
td(E-L)
DICHROMATIC
16 16 DOT
3 TO 8 DECODER
PNP DRIVER
OFF
V
V
I
I
V
V
I
I
f
f
MATRIX
CC
LED
IH
IL
CLK
FR
CC
LED
IH
IL
LED
tWL
LT1447M
td(L-C)
td(L-E)
td(A-E)
V
ON
H
H
H
D15
V
473
D0
D0
D15
MIN.
V
4.75
D
Input/output circuit
125
------
------
------
------
------
------
4.5
3.5
(n+1) data ON
D(
n+1)
331
(V
t
WCLK
CC
V
D
OFF
(n+2) data
TYP.
=5V,V
270
------
------
------
------
------
200
5.0
5.0
5.0
HC367
OUT
t
WENA
LED
ON
MAX.
5.25
5.25
0.12
350
------
------
6.0
1.5
0.1
3.0
=5V,Ta=25˚C)
A0
A1
A2
RENABLE
RDATA
GDATA
LATCH
GENABLE
CLOCK
MH
Unit
mA
mA
H
V
V
A
V
V
A
Z
Z
16
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lt1447m Summary of contents
Page 1
... Dot Matrix LED Unit for Outdoor Use LT1447M(Lamp Type) 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 Parameter Symbol Supply voltage for IC ...
Page 2
... P9.0 15= 135 D15 V D0 Hexagonal spacer ASB315 4-M3(Depth 6MIN.) CN3 10 1 LT1447M 144 256-ø7. D16 H D31 V D15 CN2 CN1 1 6 19.8 125.58 13 Pin connection CN1(Power supply) 1 VLED 2 VLED 3 VDD 4 GND1 5 GND2 6 GND2 CN2(Input signal) CN3(Output signal ...