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20×4 Character LCD Display GM2004A

Table of Contents

2004 lcd module

Diagonal Screen Size2004
LCD Display ColorYellow-green,grey, blue for choose
Model numberGM2004A
Outline dimension98*60MM
Active area70.36*20.44MM
viewing direction6 o'clock
voltage3.3V,5V optional
Operating temperature-20~70℃
Storge Temperature-30~80℃

Drawing(20×4 lcd display)

20x4 Character LCD Display GM2004A

Pin Assignment (2004 lcd display module,Pins:16P)        

1VSSGround (0V)
2VDDSupply Voltage for Logic (+5.0V )
3VOContrast Adjustment
4RSData/Instruction Select
5R/WRead/Write Select
6EEnable Signal
7DB0Data Bus
8DB1Data Bus
9DB2Data Bus
10DB3Data Bus
11DB4Data Bus
12DB5Data Bus
13DB6Data Bus
14DB7Data Bus
15LED_ALED Power Supply + (5.0V)
16LED_KLED Power Supply - (0V)


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Embedded World Exhibition & Conference 2024

See you at Messezentrum Nürnberg, Messezentrum 1 · 90471 Nuremberg

Venue No. 1-550B, Hall 1.

April 9th- 11th 2024

Attendee: Fengyi Tian & Troy Hsu