ST7032Ai COG LCD Character Display 16×2

Model No. WO1602L

COG LCD 16×2
Character LCD
5 x 8 dots includes cursor
IC: ST7032Ai
3V/5V power supply
1/16 duty cycle
Interface : I2C

Category: COG LCD

Description

The WO1602L is a COG 16×2 Character LCD Display equipped with an ST7032Ai controller IC and supports an I2C serial interface. The logic power supply voltage is 3V or 5V, and it operates with a 1/16 driving duty. With outline dimensions of 62.8 x 23 mm, the display provides a view area of 51.5 x 12.23 mm and an active area of 47.6 x 9.74 mm.

This module can operate at temperatures ranging from -20℃ to +70℃, and its storage temperatures range from -30℃ to +80℃. The LCD COG display is particularly suitable for applications that demand more compact package displays. It’s important to note that the WO1602L serves as an alternative model for WO1602H in case of IC shortages or longer lead times.

Drawing

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	62.8 x 23 x 6.3	mm
View area	51.5 x 12.23	mm
Active area	47.6 x 9.74	mm
Dot size	0.48 x 0.54	mm
Dot pitch	0.53 x 0.59	mm
Character size	2.60 x 4.67	mm
Character pitch	3.00 x 5.07	mm
Duty	1/16 , 1/5 Bias
Backlight Type	LED
Controller 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℃ Ta=25℃ Ta=70℃	－ 4.3 －	－ 4.5 －	－ 4.7 －	V V V
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	－	－	0.2	0.5	mA

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