Home Products COG LCD WO1602G

I2C LCD Display Module, I2C LCD 16x2

Model No. WO1602G

►COG LCD 16x2
►Character LCD
►5 x 8 dots includes cursor
►IC: ST7032
►3V/5V power supply
►1/16 duty cycle
►I2C LCD Display / I2C LCD Module


The WO1602G series is a COG (Chip-on-Glass) I2C interface LCD display module with a metal pin connection, featuring a display format of 16 characters x 2 lines. This module is equipped with an ST7032i controller IC and supports the I2C interface.

The I2C LCD module of WO1602G has outline dimensions of 74.2 x 25.2 mm, with a view area size of 61.0 x 15.1 mm and an active area size of 56.2 x 11.5 mm. The supply voltage for logic (VDD) can be selected as either 3V or 5V. It operates with a 1/16 duty cycle and 1/5 bias. Operating temperatures for this module range from -20℃ to +70℃, with storage temperatures ranging from -30℃ to +80℃.

COG LCD structures offer several advantages:
  • Space Saving: COG technology enables the placement of the chip behind the LCD, eliminating the need for external packaging and saving space.
  • Enhanced Performance: COG reduces interference and backlight effects on LCDs, improving performance, stability, and enhancing image quality and color representation.
  • Faster Manufacturing: COG technology reduces assembly and testing time, leading to faster manufacturing, increased productivity, and lower costs.
  • Price Advantage: The absence of external packaging in COG structures contributes to cost reduction, providing a competitive price advantage.

LCD structures with COG not only save space but also offer a price advantage, making them the preferred technology for a wide range of LCD products.

The 16x2 LCD displays in the WO1602G series, supporting I2C interface, come with different LED backlight options available in various colors. Feel free to reach out to us through our website.

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Data source ref: WO1602G-TFH-AT#


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
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 (Low active)

Mechanical Data

Item Dimension Unit
Number of Characters 16 characters × 2 Lines
Module dimension 74.2 × 25.2 × 6.3 mm
View area 61.0 × 15.1 mm
Active area 56.2 × 11.5 mm
Dot size 0.55 × 0.65 mm
Dot pitch 0.60 × 0.70 mm
Character size 2.95 × 5.55 mm
Character pitch 3.55 x 5.95 mm
Duty 1/16 , 1/5 Bias
Backlight Type LED
IC ST7032i
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-VSS -0.3 +6.0 V

LCD Driver Voltage

VLCD 7.0-VSS -0.3+VSS V

Electrical Characteristics

Item Symbol Condition Min Typ Max Unit
Supply Voltage For Logic VDD-VSS 3 3.3 5
Supply Voltage For LCD VLCD Ta=-20℃


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
(Does not include LED backlight)
IDD 0.19   mA

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