LT1465M Datasheet, PDF (1/2 Pages) Sharp Electrionic Components – Dot Matrix LED Unit for Indoor Use(Lamp Type)

Dot Matrix LED Unit for Indoor Use LT1465M(Lamp Type)
s Features
¡No. of dots : 16!16dots
¡Outline dimensions : 64!64mm
¡Dot size : ø3.0mm
¡Dot pitch : 4.0mm
¡Radiation color : Yellow-green+Red(High-luminosity)dichromatic type
¡Driving method : 1/16 duty dynamic drive
LT1465M
s Absolute Maximum Ratings
Parameter
Supply voltage for IC
Supply voltage for LED
Input voltage
Turn-on time
Operating temperature
Storage temperature
Power dissipation
Symbol
VCC
VLED
VI
tON
Topr
Tstg
P
Rating
-0.3 to +6.0
-0.3 to +5.5
-0.3 to Vcc+0.3
1
-20 to +45
-20 to +85
13
(Ta=25˚C)
Unit
V
V
V
ms
˚C
˚C
W
s Optical Characteristics
s OpPtiacraaml eCtehr aracterSiysmtibcosl
Viewing angle
2θ¹/2
Peak emission wavelength ^Red
λp
Yellow-green
(VCC=5V,VLED=5V,Ta=25˚C)
TYP.
Unit
110
˚
660
565
nm
s Luminance
Luminance is classified into 2 ranks shown below.
Radiation color
Red
Yellow-green
(VCC=5V,VLED=5V,Ta=25˚C)
Rank
Unit
1
2
240
300
cd/m²
240
300
s Terminal Functions
Connector Symbol
Power
supply
(CN1)
VLED
VCC
GND1
GND2
A0 to A3
RDATA
GDATA
Input
signal
(CN2)
LATCH
ENABLE
Function
Supply voltage for LED (+5V)
Supply voltage for IC (+5V)
Ground for IC
Ground for LED
Address specification signal for row driver
Serial data input for red (H=ON, L=OFF)
Shift from right to left(VD15¡VD0) in the unit
Serial data input for yellow-green (H=ON, L=OFF)
Shift from right to left(VD15¡VD0) in the unit
Latch signal of display data. L: Contents of shift
register are latched.
Controls ON/OFF of LED (L: LED OFF)
CLOCK
Clock signal for data transmission in the
shift-register. (L¡H: serial data is shifted.)
GND1 Ground for signal. (Connected to ground for IC)
A0 to A3 Buffered input signal
RDATA Input signal generated through 16-bit shift register
Output
signal
(CN3)
GDATA Input signal generated through 16-bit shift register
LATCH Buffered input signal
ENABLE Buffered input signal
CLOCK Buffered input signal
GND1 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.
s Electrical Characteristics
(VCC=5V,VLED=5V,Ta=25˚C)
Parameter
Symbol MIN. TYP.
Supply voltage for IC
VCC
4.75 5.0
Supply voltage for LED
VLED
4.5 5.0
IC current dissipation^*1
ICC
------ 20
LED current dissipation^*1 ILED
------ _1.7
Input voltage
VIH
3.5 ------
VIL
------ ------
Input current
IIH
------ ------
IIL
------ ------
Clock frequency
fCLK
------ ------
Frame frequency
fFR
80 100
*1 Under the condition that dichromatic all dots are lit.
MAX.
5.25
5.25
40
2.0
------
1.5
0.1
0.12
3.0
625
Unit
V
V
mA
A
V
V
µA
mA
MHz
Hz
s Timing Chart
tSU
CLOCK
RDATA
GDATA
RDATAOUT
GDATAOUT
LATCH
th
t WCLK
(n+1) th line's data
t dD
t d(C-L)
t d (L-C)
t WL
(n+2) th line's data
RENABLE
GENABLE
ADDRESS
(A0, A1)
Vn th line's data ON
VD (n)
t d (E-L)
t d(E-A)
t d(L-A)
t EN
OFF
(n+1) th line's data ON
t d (L-E)
(n+1) th line
t d (A-E)
s Block Diagram
OUT
A0
A1
A2
A3
RDATA
GDATA
CLOCK
LATCH
ENABLE
t OFF
IN
A0
A1
A2
A3
RDATA
GDATA
CLOCK
LATCH
ENABLE
3¡8
3¡8
DECODER DECODER
PNPDRIVER
HD 0
GVD15
H D15
RV D15
16!16 Dot
Matrix LED
GVD 0
VR1
RVD 0
VR2
MONO-MULTI
OSC
Input/output circuit
HC367
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