LightKey
Datasheet of 0.70 inch 8x8 Dot Matrix LED Display
LM7088A/B Series - 0.70 inch 8x8 Dot Matrix LED Display
ATTENTION
OBSERVE PRECAUTIONS
FOR HANDLING
ELECTROSTATIC
DISCHARGE
SENSITIVE
DEVICES
Features
20.20mm (0.70inch) digit high
Dot size: Diameter 1.90mm
Pitch: 2.54mm
Wide viewing angle
Range of emitted colors
I.C. compatible
Low power consumption
White segment
RoHS compliant
Available options
Alternative emitting luminosity:
Standard or high brightness version
Alternative emitted color
Alternative segment color
Alternative font
Common Cathode is available
Cropped terminal pins
Package Dimensions
COL. 1 2 3 4 5 6 7 8
ROW
1
2
2.50*7=17.50
3
20.20
4
5
6
7
8
PIN 1
2.50*7=17.50
20.20
1.
90
5.90
0.50
6.30
0.51
2.50*7=17.50
15.00
Notes:
1. All dimensions are in millimeters (inches), Tolerance is + 0.25mm (0.01inch) unless other wise noted.
2. Specifications are subject to change without notice.
3. The gap between the reflector and PCB shall not exceed 0.25mm.
SPEC NO: DS10121797
REV: A.4
CHECKED: Emily Zhou
TEL: 0086-574-86322282
APPROVED: M.H. Lin
PAGE: 1/3
HTTP://WWW.LTKEY.COM
DATE: Jul/20/2011
LightKey
Internal Circuit Diagram
LM7088A (Common Cathode Row)
Datasheet of 0.70 inch 8x8 Dot Matrix LED Display
LM7088B (Common Anode Row)
COL. 1
PIN 13
NO.
PIN
ROW NO.
1
9
2
3
4
5
6
7
8
14
2
3
3
4
4
10
5
6
6
11
7
15
8
16
COL. 1
PIN 13
NO.
PIN
ROW NO.
1
9
2
3
4
5
6
7
8
14
2
3
3
4
4
10
5
6
6
11
7
15
8
16
8
12
8
12
1
7
2
5
1
7
2
5
Selection Guide
Part No.
Common
Cathode Row
LM7088AR
LM7088AD
LM7088AO
LM7088AY
LM7088AG
LM7088AUR
LM7088AUO
LM7088AUA
LM7088AUY
LM7088AUG
LM7088APG
LM7088AUB
LM7088AUW
Unit:
\
Common
Anode Row
LM7088BR
LM7088BD
LM7088BO
LM7088BY
LM7088BG
LM7088BUR
LM7088BUO
LM7088BUA
LM7088BUY
LM7088BUG
LM7088BPG
LM7088BUB
LM7088BUW
\
Material
GaAlAs
GaAlAs
GaAsP
GaAsP
GaP
AlGaInP
AlGaInP
AlGaInP
AlGaInP
AlGaInP
InGaN
InGaN
InGaN
\
Chip
Color
Super Red
Hi-Red
Orange
Yellow
Green
Ultra Red
Ultra Orange
Ultra Amber
Ultra Yellow
Ultra Green
Pure Green
Ultra Blue
Ultra White
WLD
627
627
610
588
568
627
610
605
595
573
525
470
\
nm
8
18
7
8
7
30
45
30
30
30
120
30
100
mcd
Iv@IF=20mA
One Dot
Min.
Typ.
10
25
9
10
9
45
60
45
45
45
300
45
120
mcd
SPEC NO: DS10121797
HTTP://WWW.LTKEY.COM
REV: A.4
CHECKED: Emily Zhou
TEL: 0086-574-86322282
APPROVED: M.H. Lin
PAGE: 2/3
DATE: Jul/20/2011
LightKey
Electrical
Characteristics
Color
V
F
@
I
F
=20mA
[2]
Typ.
Super Red
Hi-Red
Orange
Yellow
Green
Ultra Red
Ultra Orange
Ultra Amber
Ultra Yellow
Ultra Green
Pure Green
Ultra Blue
Ultra White
Unit:
Notes:
1. At Ta = 25 °C.
2. Forward voltage at forward current = 20mA.
3. Peak forward current at 1/10 Duty Cycle, 0.1ms Pulse.
[1]
Datasheet of 0.70 inch 8x8 Dot Matrix LED Display
Electrical Characteristics & Absolute Maximum Ratings
Absolute Maximum Ratings
[1]
DC
Forward
Current
25
25
30
30
30
30
30
30
30
30
30
30
30
mA
Peak
Forward
Current
[3]
100
100
100
100
100
100
100
100
100
100
100
100
100
mA
Reverse
Current
VR=5V
30
30
30
30
30
30
30
30
30
30
30
30
30
uA
Power
Dissipation
60
60
80
80
80
60
65
65
65
75
110
120
120
mW
Max.
2.2
2.2
2.5
2.5
2.5
2.6
2.6
2.6
2.6
2.6
4.0
4.0
4.0
V
Per Dot
Per Dot
Per Dot
Per Dot
Per Dot
Per Dot
Per Dot
Per Dot
Per Dot
Per Dot
Per Dot
Per Dot
Per Dot
\
1.8
1.8
2.1
2.1
2.2
1.9
2.0
2.0
2.0
2.1
3.5
3.5
3.5
V
SPEC NO: DS10121797
HTTP://WWW.LTKEY.COM
REV: A.4
CHECKED: Emily Zhou
TEL: 0086-574-86322282
APPROVED: M.H. Lin
PAGE: 3/3
DATE: Jul/20/2011
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