Sharp LT1455M, LT1456M Datasheet
Supply voltage for IC
Supply voltage for LED
Input voltage
Operating temperature
Storage temperature
VCC
VLED
VI
Topr
Tstg
-0.3 to +6.0
-0.3 to +5.5
-0.3 to Vcc+0.3
-10 to +65
-20 to +85
V
V
V
ms
Turn-on time t
ON 1
˚C
˚C
Power dissipation P 22
W
Parameter
Rating
Unit
(Ta=25˚C)
Symbol
Supply voltage for IC
Supply voltage for LED
IC current dissipation
LED current dissipation
*1
Signal input voltage
V
CC
VLED
ICC
ILED
VIL
4.75
4.5
------
------
3.5
5.0
5.0
15
3.5
------
Clock frequency f
CLK ------ ------
V
IH ------ ------
Signal input current
I
IL ------ ------
I
IH ------ ------
Parameter Symbol MIN. TYP.
5.25
5.25
40
3.9
------
3.0
1.5
0.1
0.12
MAX.
V
V
mA
A
V
MHz
Frame frequency f
FR 125 200 400 Hz
V
µA
mA
Unit
(VCC=5V,VLED=5V,Ta=25˚C)
*1 Under the condition that dichromatic all dots are lit.
(VCC=5V,VLED=5V,Ta=25˚C)
Radiation color
Red
Yellow-green
2
550/1000
450/1000
Unit
cd/m
2
Rank
1
450/700
330/700
Each figure in the table is the one of LT1455M/LT1456M in sequence.
Luminance is classified into 2 ranks shown below.
(VCC=5V,VLED=5V,Ta=25˚C)
TYP.
50/40
660
565
Unit
˚
nm
Symbol
2θ1/2
Red
Yellow-green
λp
Parameter
Viewing angle
Peak emission wavelength
Each figure in the table is the one of LT1455M/LT1456M in sequence.
Dot Matrix LED Unit for Indoor/Outdoor Use LT1455M/LT1456M(Lamp Type)
t
V
D(n+2) data
tdD
tsu
th
V0(n+1) data
VD(n+1) data ON
V
D(n) data ON
V
D(n)
VD(n+1)
t
WENA
td(C-L) td(L-C)
tWL
WCLK
ON
ON
ON
ON
ON
t=1/f osc
ON
ON
CLOCK
RDATA
GDATA
RDATAout
GDATAout
GENABLE
ADDRESS
ENABLE
LATCH
RENABLE
(A0~A2)
Internal
OFF OFF
td(A-E)
td(E-A)
td(L-E)
td(E-L)
■ Features
¡No. of dots : 16✕16dots
¡Outline dimensions : 96.0✕96.0mm
¡Dot size : ø5.0mm
¡Dot pitch : 6.0mm
¡
Radiation color : Yellow-green+Red(High-luminosity)dichromatic type
¡Driving method : 1/8 duty dynamic drive
LT1455M LT1456M
■ Absolute Maximum Ratings
■ Electrical Characteristics
■ Optical Characteristics
■ Timing Chart
■ Luminance
■ Terminal Functions
Connector
Power supply
(CN1)
Symbol
V
LED Supply voltage for LED(+5V)
VCC
GND1
GND2
A0 to A2
RENABLE
GENABLE
Supply voltage for IC(+5V)
Ground for IC
Ground for LED
Address specification signal for column driver
Controls ON/OFF of each color of LED
(H: LED OFF)
Serial data input for red(H=ON, L=OFF)
RDATA
Input signal
(CN2)
GDATA
LATCH
CLOCK
GND1
A0 to A2
RENABLE
Output signal
(CN3)
Each signal is used as input signal for next unit.
* As for the terminal number, refer to the outline dimensions
(Notice) ¡
(Internet) ¡Data for sharp's optoelectronic/power device is provided for internet.(Address http://www.sharp.co.jp/ecg/)
RDATA
GDATA
LATCH
GENABLE
CLOCK
GND1
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.
Shift from up to down in the unit
H
D16/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.
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
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)
Function
■ Block Diagram
Luminance adjustment circuit
VR1
OSC
A0
A1
A2
RENABLE
RDATA
GDATA
LATCH
GENABLE
CLOCK
VR2
MONO-MULTI
HC123
16BIT
SHIFT-REGISTER
LATCH AND DRIVER
HD31
HD16 HD0
DICHROMATIC
16BIT
SHIFT-REGISTER
LATCH AND DRIVER
HD31 HD15
3 TO 8 DECODER
PNP DRIVER
16✕16 DOT
LED
MATRIX
Input/output circuit
473 331
V
D15VD0
HD0HD16
HD15
HC367
16BIT
SHIFT-REGISTER
LATCH AND DRIVER
16BIT
SHIFT-REGISTER
LATCH AND DRIVER
OUT
A0
A1
A2
RENABLE
RDATA
GDATA
LATCH
GENABLE
CLOCK
3
-0.15
3
+0
2 Vcc
27.4
±0.3
P6.0✕15=90
95.7
H
±0.3
93
±0.1
D15
H
V
43.5
40
±0.1
8 ENABLE
7 LATCH
6 GDATA
3 A2
2 A1
1 A0
D0
V
4 A3
5 RDATA
Pin No.
CN3(Output signal)
10 GND1
9 CLOCK
4 A3
CN2(Input signal)
1 A0
2 A1
3 A2
26
16.5
3.96✕3=11.8
10
4
CN1
CN3 CN2
18249
1
1
±0.1
3333
2525
93
4-M3(Screw depth 6)
40
±0.1
40
3 GND1
1 VLED
Pin No.
CN1(Power supply)
40
43.5
4 GND2
5 RDATA
6 GDATA
7 LATCH
8 ENABLE
9 CLOCK
10 GND1
Pin No.
VOL.1
VOL.2
14
D15
D0
256-ø5
2.5✕9=22.5
P6.0✕15=90
95.7±0.3
Data shift direction
Name Name
Name
Pin connection
8
±3
HD0
95.7
(P6.0✕1590.0)
(256-ø5.0)
HD16
±0.3
95.7
Data shift direction
P6.0✕15=90.0)
HD15
VD0
12.315.0
13.5
4-M3(Depth6MIN)
78.0
95.5
(17.0)
3.96✕3=11.88)
LT1455M/LT1456M
95.5
78.0
(5.0) (4.0)
CN3 CN2
10
1
VR2
(26.0)
CN1
10
4
1
VR1
Data shift direction
HD31
VD15
Pin connection
1
CN1(Power supply)
1
VLED
2
VCC
3
GND1
4
GND2
CN2(Input signal) CN3(Output signal)
(2.5✕9=22.5)
A0
1
A1
2
A2
3
RENABLE
4
RDATA
5
GDATA
6
LATCH
7
GENABLE
8
CLOCK
9
GND1
1
A0
2
A1
3
A2
4
RENABLE
RDATA
5
6
GDATA
7
LATCH
GENABLE
8
9
CLOCK
1010
GND1
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