lt1540m Sharp Microelectronics of the Americas, lt1540m Datasheet
lt1540m
Manufacturer Part Number
lt1540m
Description
Matrix Unit Outdoor Lamp Type
Manufacturer
Sharp Microelectronics of the Americas
Datasheet
1.LT1540M.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 LT1540M(Lamp Type)
¡No. of dots : 16 16dots
¡Outline dimensions : 240 240mm
¡Dot size : 13.0 13.0mm
¡Dot pitch : 14.9mm
¡Radiation color : Yellow-green+Red(High-luminosity)dichromatic type
¡Driving method : 1/8 duty dynamic drive
Each signal is used as input signal for next unit.
* As for the terminal number, refer to the outline dimensions.
Luminance is classified into 2 ranks shown below.
Peak emission wavelength
Radiation color
Connector
Yellow-green
Power
supply
(CN1)
Output
(CN2)
(CN3)
signal
signal
Input
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
Viewing angle
Red
Parameter
¡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
devices shown in catalogs, data books, etc. Contact SHARP in order to obtain the latest device specification sheets before using any SHARP device.
V
V
GND1
GND2
A0 to A2
RDATA
GDATA
LATCH
RENABLE
GENABLE
CLOCK
GND1
A0 to A3
RDATA
GDATA
LATCH
RENABLE
GENABLE
CLOCK
GND1
Symbol
LED
CC
Yellow-green
Red
Supply voltage for LED (+8V)
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
Latch signal of display data.H: Serial data is
converted to parallel data. L: Contents are latched.
LATCH signal is set up after switching address(A0 to A2)
Controls ON/OFF of each color of 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
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)
1 200
D16
750
Symbol
1
2
1
p
H
/
Symbol
2
V
V
V
t
T
T
P
D31
ON
opr
stg
CC
LED
I
Rank
H
D0
-0.3 to Vcc+0.3
H
Function
-0.3 to +6.0
-0.3 to +8.5
-25 to +100
D15
-20 to +45
TYP.
(Vcc=5V,V
Rating
660
565
(Vcc=5V,V
50
1 600
1 000
58
1
2
LED
LED
=8V,Ta=25˚C)
=8V,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
CLOCK
RDATA
GDATA
RDATA out
GDATA out
LATCH
Internal
ENABLE
RENABLE
GENABLE
ADDRESS
(A0 to A2)
Electrical Characteristics
Timing Chart
Block Diagram
A0
A1
A2
RENABLE
RDATA
GDATA
LATCH
GENABLE
CLOCK
GND1
Input/output circuit
Parameter
t
ON
SU
HC367
OUT
t=1/fosc
331
ON
th
td
V
D
D
(n+1) data
V
V
473
D
D
(n) data ON
(n)
ON
*1
Luminance adjustment circuit
OSC
td(E-A)
ON
H
H
H
H
D15
D16
D31
D0
td(C-L)
GADJ
Symbol
MONO-MULTI
V
V
I
I
V
V
I
I
f
f
3 to 8 DECODER
CC
LED
IH
IL
CLK
FR
PNP
16 16 Dot
matrix LED
CC
LED
IH
IL
RADJ
DRIVER
OFF
td(L-C)
td(A-L)
t
WL
ON
H
H
H
H
MIN. TYP.
td(A-E)
D16
D31
D0
4.75
D15
250
------
------
------
------
------
------
7.5
3.5
LT1540M
(V
SELECTOR
V
V
ON
D
D
(n+1) data ON
(n+1)
CC
GATE
=5V,V
t
200
400
------
------
------
------
------
5.0
8.0
5.5
WCLK
V
D
ON
(n+2) data
LED
MAX.
3 000
5.25
8.25
0.12
10.0
500
------
=8V,Ta=25˚C)
7.0
1.5
0.1
IN
t
OFF
WKNA
A0
A1
A2
RENABLE
RDATA
GDATA
LATCH
GENABLE
CLOCK
GND1
MHz
Unit
mA
mA
Hz
V
V
A
V
V
A
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lt1540m Summary of contents
Page 1
... Dot Matrix LED Unit for Outdoor Use LT1540M(Lamp Type) Features ¡No. of dots : 16 16dots ¡Outline dimensions : 240 240mm ¡Dot size : 13.0 13.0mm ¡Dot pitch : 14.9mm ¡Radiation color : Yellow-green+Red(High-luminosity)dichromatic type ¡Driving method : 1/8 duty dynamic drive Absolute Maximum Ratings Parameter Symbol Supply voltage for ...
Page 2
... P14.9 15=223.5 HD0 HD15 VD0 Water-proof rubber CN3 GADJ 10 RADJ CN1 1 12- Insert nut 6 (M3) Depth MIN. 45.0 LT1540M 239.2 11.0 18.0 16.6 HD16 HD31 VD15 256-13.0 13.0 206.0 217.0 190.0 177.0 ø 60.0 2- 3.0 (Height 3 ) Positioning pin CN2 ø 8- 7.0 concave ø 7.0 P3.96 5=19.8 ø 6.5 145.0 11.0 MAX. (Except CN1 to 3) ...