LightKey
Datasheet of 1.20 inch 5x7 Square Dot Matrix LED Display
LM7057A/B Series - 0.70 inch 5x7 Dot Matrix LED Display
ATTENTION
OBSERVE PRECAUTIONS
FOR HANDLING
ELECTROSTATIC
DISCHARGE
SENSITIVE
DEVICES
Features
31.60mm (1.20 inch) matrix height
Dot size: 4x4 mm
Pitch: 4.60 mm
Wide viewing angle
Range of emitted colors
I.C. compatible
Low power consumption
White dot, grey or black face
RoHS compliant
Available options
Alternative emitting luminosity:
Standard or high brightness version
Alternative emitted color
Alternative dot color
Alternative face color
Both CA or CC versions are available
Cropped terminal pins
Package Dimensions
COL. 1
4.0*4.0
2
3
4
5
ROW
1
2
4.60*6=27.60
3
42.00
4
5
6
7
PIN 1
4.60*4=18.40
25.00
8.00
0.50
0.51
36.00
2.54*6=15.24
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: DS10121816
6.30
REV: A.4
CHECKED: Emily Zhou
APPROVED: M.H. Lin
PAGE: 1/3
HTTP://WWW.DISPLAY-LEDS.COM
TEL: 0086-574-86322282
DATE: Jul/20/2011
LightKey
Internal Circuit Diagram
LM7057A (Common Cathode Row)
Datasheet of 1.20 inch 5x7 Square Dot Matrix LED Display
LM7057B (Common Anode Row)
COL. 1
PIN
NO.
PIN
NO.
9
14
8
5
12
1
7
2
13
2
3
3
4 11
4
10
5
6
ROW
1
2
3
4
5
6
7
COL.
PIN
NO.
PIN
NO.
9
14
8
5
12
1
7
2
1
13
2
3
3
4 11
4
10
5
6
ROW
1
2
3
4
5
6
7
Selection Guide
Part No.
Common
Cathode Row
LM12457AR
LM12457AD
LM12457AO
LM12457AY
LM12457AG
LM12457AUR
LM12457AUO
LM12457AUA
LM12457AUY
LM12457AUG
LM12457APG
LM12457AUB
LM12457AUW
Unit:
Common
Anode Row
LM12457BR
LM12457BD
LM12457BO
LM12457BY
LM12457BG
LM12457BUR
LM12457BUO
LM12457BUA
LM12457BUY
LM12457BUG
LM12457BPG
LM12457BUB
LM12457BUW
\
Material
GaAlAs
GaAlAs
GaAsP
GaAsP
GaP
AlGaInP
AlGaInP
AlGaInP
AlGaInP
AlGaInP
InGaN
InGaN
SMD
\
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
640
640
625
588
568
640
625
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: DS10121816
REV: A.4
CHECKED: Emily Zhou
APPROVED: M.H. Lin
PAGE: 2/3
HTTP://WWW.DISPLAY-LEDS.COM
TEL: 0086-574-86322282
DATE: Jul/20/2011
LightKey
Datasheet of 1.20 inch 5x7 Square Dot Matrix LED Display
Electrical Characteristics & Absolute Maximum Ratings
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]
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: DS10121816
REV: A.4
CHECKED: Emily Zhou
APPROVED: M.H. Lin
PAGE: 3/3
HTTP://WWW.DISPLAY-LEDS.COM
TEL: 0086-574-86322282
DATE: Jul/20/2011