Model No. WO1602J-VATN
►16 Character x 2 line
►5x8 dots includes cursor
►IC: ST7028-1A
►+3.3V power supply
►1/17 duty cycle
►LED type : Highlight White
►Interface : I2C
The WO1602J model is a Chip on Glass (COG) VATN module featuring 16 characters by 2 lines with a VA Negative Transmissive LCD, available with a white LED backlight. This WO1602J module is built-in with an ST7028-1A IC; it supports I2C interface, has a viewing direction at 12 o'clock, a duty cycle of 1/17, and a bias of 1/5.
Both the VATN WO1602J and our existing COG LCD WO1602G share the same outline dimensions of 74.2 x 25.2 mm and feature the same metal pinout. The WO1602J uses pin connections on the glass panel, and the backlight AK pins are located on the side. This design allows for a direct replacement of WO1602G with the new WO1602J display. We designed twin LED chips to increase the backlight brightness for the WO1602J VATN model.
The supply voltage for the logic of WO1602J ranges from 3V to 3.6V, with a typical value of 3.3V. This module can operate at temperatures ranging from -20℃ to +70℃, and its storage temperature ranges from -30℃ to +80℃.
The VATN (Vertical Alignment Twisted Nematic) display features a wide viewing angle and high contrast ratio; therefore, it is very suitable for many applications. Below are some examples for reference:
| Item | Dimension | Unit |
|---|---|---|
| Number of Characters | 16 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 | 56.2 x 11.5 | mm |
| Dot size | 0.55 x 0.65 | mm |
| Dot pitch | 0.60 x 0.70 | mm |
| Character size | 2.95 x 5.55 | mm |
| Character pitch | 3.55 x 5.95 | mm |
| Duty | 1/17duty , 1/5 Bias | |
| Backlight Type | LED | |
| IC | ST7028-1A | |
| Interface | I2C | |
| Item | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Operating Temperature | TOP | -20 | － | +70 | ℃ |
| Storage Temperature | TST | -30 | － | +80 | ℃ |
| Power Supply Voltage | VDD | -0.3 | － | 4.0 | V |
| Supply Voltage For LCD Drive | VOP=V0-VSS | -0.3 | － | 13.0 | V |
| Input voltage range | VIN | -0.3 | － | VDD+0.3 | V |
| Item | Symbol | Condition | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Supply Voltage For Logic | VDD-VSS | － | 3 | 3.3 | 3.6 | V |
| Supply Voltage For LCD | Vop | Ta=-20℃ Ta=25℃ Ta=70℃ |
－ 6.8 － |
－ 7.0 － |
－ 7.2 － |
V V V |
| Input High Volt. | VIH | － | 0.7 VDD | － | VDD | V |
| Input Low Volt. | VIL | － | － | － | 0.2 VDD | V |
| Output High Volt. | VOH | － | 0.8 VDD | － | VDD | V |
| Output Low Volt. | VOL | － | － | － | 0.2VDD | V |
| Supply Current | IDD | － | － | － | 1.5 | mA |
| Pin | Symbol | Function |
|---|---|---|
| 1 | RSTB | External reset pin |
| 2 | SCL | Serial clock input |
| 3 | SDA | Serial Data signal |
| 4 | VSS | Ground |
| 5 | VDD | Power supply |
| 6 | AVDD | AVDD is the source of VG regulator. |
| 7 | V0 | V0 is the LCD driving voltage for common circuits at negative frame. |
| 8 | XV0 | XV0 is the LCD driving voltage for common circuits at positive frame. |
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