Home Products COG LCD WO2004C

Character 20x4 COG LCD Display Module with FPC

Model No. WO2004C

►COG LCD 20x4
►Character LCD
►IC: IST3602
►3V power supply
►1/33 duty cycle, 1/6 Bias
►Interface : I2C


WO2004C is a monochrome Character 20x4 COG LCD module with FPC. This COG module has the dimension of 74.3 x 36.4 mm, and VA size of 60.5 x 22.18 mm. WO2004C 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℃.

WO2004C is available in FSTN positive LCD and STN Negative with white LED backlight; please contact us if you need different LCD type and LED combination.


Character 20x4 COG LCD Display Module - WO2004C

Data source ref: WO2004C-TFH#


Interface Pin Function

Pin Symbol 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
11 K LED-
12 A LED+

Mechanical Data

Item Dimension Unit
Number of Characters 20 characters x 4 Lines  
Module dimension 68.3 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℃



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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