128×64 Graphic LCD Display Module - RG12864B LCD - Raystar

128×64 Graphic LCD Display Module COB 2.42-inch (NT7107/NT7108 IC)

Model No. RG12864B

The RG12864B is a 2.42-inch 128×64 COB graphic LCD module, designed for industrial and embedded applications. This LCD 128x64 module features an LED backlight, NT7107/NT7108 controller ICs, and a 68-series interface, ensuring stable operation with a 1/64 duty ratio. The module also comes with a PCB equipped with screw holes and peripheral circuits, making the graphic LCD 128x64 display easy to mount and integrate into different systems.

Engineered for durability, the 128x64 LCD display supports a wide operating temperature range and delivers stable functionality with a typical 5.0V logic supply and low power consumption. With robust electrical characteristics and a long-lasting LED backlight, this LCD graphic display 128x64 module ensures consistent readability and performance. For projects requiring Chinese fonts, the LCD 12864B series offers the RG12864B2 as an alternative option.

If you need technical support or product quotes for the RG12864B, or other graphic display 128x64 LCD module, please feel free to contact our sales team!

Data Soutce Ref: RG12864B-YHY-V

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Graphic 128x64 LCD Display Modules Specs
Interface Pin Function
Contour Drawing
Absolute Maximum Ratings
Electrical Characteristics

Item	Dimension	Unit
Structure	COB
Size (Diagonal)	2.42	inch
Dot Matrix / Resolution	128 × 64	dots
Module Dimension	75.0 × 52.7 × 8.9 (MAX)	mm
Viewing Area	58.8 × 31.4	mm
Active Area	55.01 × 27.49	mm
Dot / Pixel Size	0.40 × 0.40	mm
Dot / Pixel Pitch	0.43 × 0.43	mm
Backlight Type	LED
IC	NT7107,NT7108
Interface	6800
Power Supply	5V
Duty	1/64
Type	Graphical LCD Display Module

Connectivity Options for 128x64 LCD Display

Pin No.	Symbol	Level	Description
1	VDD	5.0V	Supply voltage for logic
2	VSS	0V	Ground
3	Vo	(Variable)	Contrast Adjustment
4	DB0	H/L	Data bus line
5	DB1	H/L	Data bus line
6	DB2	H/L	Data bus line
7	DB3	H/L	Data bus line
8	DB4	H/L	Data bus line
9	DB5	H/L	Data bus line
10	DB6	H/L	Data bus line
11	DB7	H/L	Data bus line
12	CS1	L	Select Column 1~ Column 64
13	CS2	L	Select Column 65~ Column 128
14	/RST	L	Reset signal
15	R/W	H/L	H: Read (Module --> MPU) L: Write(MPU --> Module)
16	D/I	H/L	H: Data , L : Instruction
17	E	H	Enable signal
18	Vee	－	Negative Voltage output
19	A	－	Power Supply for LED backlight ( + )
20	K	－	Power Supply for LED backlight ( - )

Mechanical Dimensions of Graphic LCD 128x64

128×64 Graphic LCD Display Module - RG12864B LCD Drawing - Raystar

Operating Limits of RG12864B LCD Graphic Display

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

Power & Logic Requirements for gLCD 128x64

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℃	－ 7.8 7.6	－ 8.0 －	9.6 8.2 －	V V V
Input High Volt	VIH	－	0.7 VDD	－	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	4.0	5.0	mA