Home Products COG LCD WO1602M

COG LCD Display Module 16x2, ST7032Ai

Model No. WO1602M

►COG LCD 16x2
►Character LCD
►5 x 8 dots includes cursor
►Built-in controller ST7032Ai
►3V power supply
►1/16 duty cycle
►Interface: I2C


Winstar WO1602M 16x2 COG monochrome LCD display module. This module has the outline dimension 51.2 x 20.7 mm and VA size of 40.0 x 10.0 mm. This series is built-in with ST7032Ai driver and the interface is I2C. This series of modules can be operating at temperatures from -20℃ to +70℃; its storage temperatures range from -30℃ to +80℃. Please note the WO1602M is the alternative model for WO1602I corresponding IC shortage or longer lead-time.


COG LCD Display Module 16x2, ST7032Ai - WO1602M

Data source ref: WO1602M-TFH-AT#


Interface Pin Function

Pin No. Symbol Description
1 VG VG is the LCD driving voltage for segment circuits.
VGO is the output of VG regulator. VGS is the feedback of VG regulator.
VGI is the VG input of segment circuits.
1.6 ≤ VG < VDD2.
2 XV0 XV0 is the LCD driving voltage for common circuits at positive frame.
XV0OUT is the output of XV0 regulator. XV0S is the feedback of XV0 regulator.
XV0I is the V0 input of common circuits.
3 V0 V0 is the LCD driving voltage for common circuits at negative frame.
V0OUT is the output of V0 regulator. V0S is the feedback of V0 regulator.
V0I is the V0 input of common circuits.
Be sure that: V0 ≥ VG > VM > VSS ≥ XV0 (under operation).
4 VDD Power supply input.
5 VSS Ground
6 SDA Serial data input
7 SCL Serial clock input
8 RST Hardware reset input pin. When RSTB is “L”, internal initialization is executed and the internal registers will be initialized.

Mechanical Data

Item Dimension Unit
Number of Characters 16 characters x 2 Lines
Module dimension 51.2 x 20.7 x 6.3 mm
View area 40.0 x 10.0 mm
Active area 38.0 x 7.98 mm
Dot size 0.36 x 0.43 mm
Dot pitch 0.41 x 0.48 mm
Character size 2.00 x 3.79 mm
Character pitch 2.40 x 4.19 mm
Duty 1/16 , 1/5 Bias
Backlight Type LED
IC ST7032Ai
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 +4.0 V
LCD Driver Voltage VLCD -0.3 7.0 V

Electrical Characteristics

Item Symbol Condition Min Typ Max Unit
Supply Voltage For Logic VDD-VSS 2.9 3.0 3.1 V
Supply Voltage For LCD VOP Ta=-20℃



Input High Volt. VIH 0.7 VDD VDD V
Input Low Volt. VIL VSS 0.3VDD V
Supply Current (LED backlight is not included) IDD 0.16 1.0 mA

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