LightKey

SPEC NO: DS10121827

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

Datasheet of 2.00 inch 5x7 Dual Color Dot Matrix LED Display

Internal Circuit Diagram

LM20057A (Common Cathode Row)

LM20057B (Common Anode Row)

18

2

7

PIN

NO.

12

20

11

17

7

1

10

1

2

3

4

5

6

ROW

NO.

PIN

COL.

2

7

= GREEN

= ORANGE

ROW

12

1

2

20

NO.

PIN

11

17

7

3

4

1

10

5

6

= ORANGE

= GREEN

8

4

14

16

6

3

15

5

13

2

34

1

19

COL.

NO.

PIN

5

9

4

13

3

16

614

15

5

2

34

1

19

18

9

8

5

Selection Guide

2.00 inch 5x7 Red-Green LED dot matrix module, Matrix Height: 53.10 mm(2.00 inch), External Dimensions:

37.80x53.10x8.40 mm (L x W x H)

Part No.

Chip

Iv(mcd)@20mA

One Dot

Description

Cathode Row

Anode Row

Material

Color

W LD

(nm)

Min.

Typ.

GaAlAs

Super Red

640

8

10

Standard

Brightness

LM20057CRG

LM20057DRG

GaP

Green

568

7

9

AlGaInP

Ultra Red

640

30

45

Ultra-High

Brightness

LM20057CURUG LM20057DURUG

AlGaInP

Ultra Green

573

30

45