16x2 VATN COG LCD Display
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
Description
WO1602J model is a COG 16-characters by 2-lines VATN module with VA Negative Transmissive LCD, available in white LED. This WO1602J module is built-in with ST7028-1A IC; it supports I2C interface, viewing direction at 12 o'clock, 1/17 duty, and 1/5 Bias.
The supply voltage for logic of WO1602J is 3V to 3.6V, the typical value of 3.3V. This VATN WO1602J and our existing COG LCD WO1602G have the same outline dimension of 74.2 x 25.2 mm and feature the same metal pinout. Also, the VA and AA sizes of WO1602J are the same as WH1602B. We designed twin LED dices to increase the backlight brightness for the WO1602J VATN model. This module can be operating at temperatures from -20℃ to +70℃; its storage temperatures range from -30℃ to +80℃.
The VATN (Vertical Alignment Twisted Nematic) display features a wide viewing angle and high contrast ratio; therefore, it's very suitable for many applications. Below are the examples for reference.
Industrial: automotive application, digital meter, UPS.
Medical: medical device & medical equipment.
Home appliance: audio system, coffee machine, microwave oven.
DRAWING
Data source ref: WO1602J-TLL-AT#
SPECIFICATIONS
Interface Pin Function
| Pin | Symbol | Function Description |
|---|---|---|
| 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. |
Mechanical Data
| 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 | |
Absolute Maximum Ratings
| 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 |
Electrical Characteristics
| 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 |
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