LCD Dot Matrix Display, Dot Matrix Display Module, 128x64 Dot Matrix LCD Display - WG12864I

128x64 Dot Matrix LCD Display Module – Monochrome COB LCD Dot Matrix Display

Model No. WG12864I

►Dot Matrix Display Module, Graphic LCD 128x64
►Type: Graphic
►Structure: COB
►Size: 2.93"
►IC: NT7107, NT7108
►+5V power supply
►1/64 duty cycle
►Negative voltage option
►Interface: 6800
►Touch Screen: Option

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Description

WG12864I is a monochrome 128x64 dot matrix LCD display module with an outline dimension of 80x70 mm and an active area of 66.52×33.24 mm (2.93 inches). This model is built in with NT7107, NT7108 controllers or equivalent ICs, and supports a 6800 8-bit parallel interface. It operates on a 5V power supply, with an optional version supporting 3.3V negative voltage.

This LCD dot matrix display module is available with or without LED backlight. It is designed to operate in a wide temperature range from -20℃ to +70℃, and can be stored between -30℃ and +80℃, making it ideal for industrial environments. The WG12864I series adopts a COB (Chip on Board) structure, offering durability and ease of integration for a wide range of applications.

DRAWING

Data source ref:WG12864I-YGH-V#N

SPECIFICATIONS

Mechanical Data

Item	Dimension	Unit
Number of dots	128 x 64	－
Module dimension	80.0 x 70.0 x 13.6(MAX)	mm
View area	72.0 x 40.0	mm
Active area	66.52 x 33.24	mm
Dot size	0.48 x 0.48	mm
Dot pitch	0.52 x 0.52	mm
Duty	1/64
Backlight Type	LED
IC	NT7107，NT7108
Interface	68 series

Absolute Maximum Ratings

Item	Symbol	Min	Typ	Max	Unit
Operating Temperature	TOP	-20	－	+70	℃
Storage Temperature	TST	-30	－	+80	℃
Supply Voltage For Logic	VDD-VSS	-0.3	－	7.0	V
Driver Supply Voltage	VLCD	VEE-0.3	－	VDD+0.3	V

Electrical Characteristics

Item	Symbol	Condition	Min	Typ	Max	Unit
Supply Voltage For Logic	VDD-VSS	－	4.5	5.0	5.5	V
Supply Voltage For LCD	VDD-VO	Ta=-20℃ Ta=25℃ Ta=70℃	－ 8.4 7.6	－ 8.7 －	10.5 9.0 －	V V V
Input High Volt.	VIH	－	0.7VDD	－	VDD	V
Input Low Volt.	VIL	－	0	－	0.8	V
Output High Volt.	VOH	－	2.4	－	－	V
Output Low Volt.	VOL	－	－	－	0.4	V
Supply Current	IDD	VDD=5.0V	－	3.0	－	mA

Interface Pin Function

Pin No.	Symbol	Level	Description
1	VSS	0V	Ground
2	VDD	5.0V	Supply voltage for logic
3	VO	(Variable)	Operating voltage for LCD
4	D/I	H/L	H: Data , L: Instruction
5	R/ W	H/L	H: Read(MPU←Module) , L :Write(MPU→Module)
6	E	H	Enable signal
7	DB0	H/L	Data bus line
8	DB1	H/L	Data bus line
9	DB2	H/L	Data bus line
10	DB3	H/L	Data bus line
11	DB4	H/L	Data bus line
12	DB5	H/L	Data bus line
13	DB6	H/L	Data bus line
14	DB7	H/L	Data bus line
15	CS1	H	Chip Select for IC1
16	CS2	H	Chip Select for IC2
17	/RES	L	Reset signal
18	Vout	－	Negative Voltage output
19	A	－	Power supply for B/L +
20	K	－	Power supply for B/L -