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Character 20x4 COG LCD Display Module
Model No. WO2004B
►COG LCD 20x4
►Character LCD
►IC: IST3602
►3V power supply
►1/33 duty cycle, 1/6 Bias
►Interface : I2C
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
SPECIFICATIONS
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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