Character 20×4 COG LCD Display Module

Model No. WO2004B

COG LCD 20×4
Character LCD
IC: IST3602
3V power supply
1/33 duty cycle, 1/6 Bias
Interface : I2C

Category: COG LCD

Description

WO2004B is a module of 20 characters x 4 Lines COG LCD display that has the module dimension of 74.3 x 36.4 mm, and VA size of 60.5 x 22.18 mm. WO2004B is built-in with IST3602 IC; its interface is I2C and supports 3V power supply, 1/33 duty, and 1/6 Bias. This LCD module can be operated at temperatures from -20℃ to +70℃; its storage temperatures range from -30℃ to +80℃70℃; its storage temperatures range from -30℃ to +80℃.

WO2004B is available in FSTN positive LCD with white LED and without backlight, and STN Negative with white LED backlight; please contact us if you need different LCD type and LED combination.

Drawing

Data source ref: WO2004B-TFH#

Interface Pin Function

Pin	Symbol	Function Description
1	ITO ESD	Ground
2	V0	LCD Power Supply
3	VSS	Ground(VSS2&VSS3)
4	VDD	Power Supply(VDD2&VDD3)
5	VSS1	Ground(VSS1)
6	VDD1	Power Supply(VDD1)
7	SDA	Serial input data
8	SCL	Serial input clock
9	RESB	Hardware Reset input pin
10	ITO ESD	Ground

Mechanical Data

Item	Dimension	Unit
Number of Characters	20 characters x 4 Lines
Module dimension	74.3 x 36.4 x 6.0	mm
View area	60.5 x 22.18	mm
Active area	58.5 x 20.18	mm
Dot size	0.45x 0.54	mm
Dot pitch	0.50 x 0.59	mm
Character size	2.45 x 4.67	mm
Character pitch	2.95 x 5.17	mm
Duty	1/33DUTY,1/6BIAS
Backlight Type	LED
IC	IST3602
Interface	I2C

Absolute Maximum Ratings

Item	Symbol	Min	Typ	Max	Unit
Operating Temperature	TOP	-20	－	+70	℃
Storage Temperature	TST	-30	－	+80	℃
Input Voltage	VIN	-0.3	－	VDD+0.3	V
Power Supply Voltage	VDD	-0.3	－	4.0	V
LCD Driver Voltage	VLCD	-0.3	－	18.0	V

Electrical Characteristics

Item	Symbol	Condition	Min	Typ	Max	Unit
Supply Voltage For Logic	VDD	－	2.7	3.0	3.3	V
Supply Voltage For LCD	VO-VSS	Ta=-20℃ Ta=25℃ Ta=70℃	－ 7.6 －	－ 7.8 －	－ 8.0 －	V V V
Input High Volt.	VIH	－	0.8 VDDIO	－	VDD	V
Input Low Volt.	VIL	－	VSS	－	0.2 VDD	V
Output High Volt.	VOH	－	0.8 VDDIO	－	VDD	V
Output Low Volt.	VOL	－	－	－	0.2 VDD	V
Supply LCM current	IDD	VDD=3.0V	－	0.5	－	mA

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