Winstar Display releases a 20 characters x 2 lines standard COG LCD module which is having the same outline size as WO1602G. This 20×2 LCD Display is built in with ST7036i driver IC and the interface is I2C. This LCD module can be operating at temperatures from -20℃ to +70℃; its storage temperatures range from -30℃ to +80℃.
20×2 COG LCD Module Display
Model No. WO2002A
- 20×2 COG LCD
- Character LCD
- 5 x 8 dots includes cursor
- IC: ST7036
- 3V/5V power supply
- 1/16 duty cycle
- I2C LCD Interface
Description
Drawing
Drawing
Data soutce ref:WO2002A-TFH-AT#
Interface Pin Function
Interface Pin Function
| Pin No. | Symbol | Level | Description |
|---|---|---|---|
| 1 | VOUT | DC/DC voltage converter. Connect a capacitor between this terminal and VIN when the built-in booster is used. |
|
| 2 | CAP1N | For voltage booster circuit(VDD-VSS) External capacitor about 0.1u~4.7uf |
|
| 3 | CAP1P | ||
| 4 | VDD | 3.0/5.0V | Power supply |
| 5 | VSS | GND | |
| 6 | SDA | (In I2C interface DB7 (SDA) is input data. SDA and SCL must connect to I2C bus (I2C bus is to connect a resister between SDA/SCL and the power of I2C bus ). |
|
| 7 | SCL | (In I2C interface DB6 (SCL) is clock input. SDA and SCL must connect to I2C bus (I2C bus is to connect a resister between SDA/SCL and the power of I2C bus ). |
|
| 8 | RST | RESET |
Mechanical Data
Mechanical Data
| Item | Dimension | Unit |
|---|---|---|
| Number of Characters | 20 Characters x 2 Lines | － |
| Module dimension | 74.2 x 25.2 x 6.3 | mm |
| View area | 61.0 x 15.1 | mm |
| Active area | 58.5 x 9.84 | mm |
| Dot size | 0.45 x 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 | 1/16DUTY,1/5BIAS | |
| Backlight Type | LED | |
| IC | ST7036i | |
| Interface | I2C | |
Absolute Maximum Ratings
Electrical Characteristics
Electrical Characteristics
| Item | Symbol | Condition | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Supply Voltage For Logic | VDD-VSS | － | 3.0 | 3.3 | 5 (bon=1 max=3.5V) |
V |
| Supply Voltage For LCD | VLCD | Ta=-20℃ Ta=25℃ Ta=70℃ |
－ － － |
－ 4.5 － |
－ － － |
V V V |
| Input High Volt. | VIH | － | 0.7 VDD | － | VDD | V |
| Input Low Volt. | VIL | － | － | － | 0.2VDD | V |
| Output High Volt. | VOH | － | 0.7VDD | － | － | V |
| Output Low Volt. | VOL | － | － | － | 0.8 | V |
| Supply Current(No include LED Backlight) | IDD | － | － | 0.2 | － | mA |
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