LightKey

SPEC NO: DS10121847

REV: A.4

CHECKED: Emily Zhou

APPROVED: M.H. Lin

PAGE: 2/3

HTTP://WWW.LTKEY.COM

TEL: 0086-574-86322282

DATE: Jul/20/2011

Datasheet of 4.00 inch 5x7 Dual Color Dot Matrix LED Display

Internal Circuit Diagram

LM40057ARG (Common Cathode Row)

LM40057BRG (Common Anode Row)

317

9 NO CONNECT

7

6

6

5

5

4

8

14

= ORANGE

= GREEN

2

1

15

16

ROW

COL.

PIN

NO.

NO.

PIN

1

118

2

23

3

13 4

4

12 7

11

5

10

17

3

4

5

7

6

6

5

8

14

18

2

ROW

1

15

16

PIN

NO.

COL.

PIN

NO.

1

14

3

2

2

3

13

4

12

5

710 11

Selection Guide

4.00 inch 5x7 Red-Green LED dot matrix module, Matrix Height: 106.50mm(4.00 inch), External Dimensions:

76.000x106.50x13.00mm (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

12

15

Standard

Brightness

LM40057ARG

LM40057BRG

GaP

Green

568

10.5

13.5

AlGaInP

Ultra Red

640

45

67.5

Ultra-High

Brightness

LM40057AURUG

LM40057BURUG

AlGaInP

Ultra Green

573

45

67.5