12864 LCD Graphic Display Module 2.93-inch COB - RG12864A2 - Raystar

12864 LCD Graphic Display Module 2.93-inch COB (ST7920 IC)

Model No. RG12864A2

The RG12864A2 is a COB LCD 12864 graphic module equipped with the ST7920 controller IC. This series supports both 6800 parallel and SPI interfaces and includes built-in Chinese fonts for versatile display applications. Designed with a PCB featuring screw holes and peripheral circuits, the module ensures easy mounting and user-friendly integration.

Engineered for reliable performance, the RG12864A2 operates within a wide temperature range (-20°C to +70°C) and supports a logic supply voltage of 4.5V–5.5V. With low power consumption (2.6 mA typ.) and durable electrical characteristics, this 12864 LCD display is ideal for industrial instruments, control panels, and portable devices. Whether you are looking for a reliable 12864 LCD, a high-quality display 12864, or a compact 12864 graphic LCD module, the RG12864A2 offers an excellent solution.

For technical support or product quotations regarding the RG12864A2 or other 128×64 graphic LCD modules, please contact our sales team.

Data Source Ref: RG12864A2-BIW-VBA

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General Specs
Interface Pin Function
Contour Drawing
Absolute Maximum Ratings
Electrical Characteristics

Item	Dimension	Unit
Structure	COB
Size (Diagonal)	2.93	inch
Dot Matrix / Resolution	128 × 64	dots
Module Dimension	93.0 × 70.0 × 13.6 (MAX)	mm
Viewing Area	72.0 × 40.0	mm
Active Area	66.52 × 33.24	mm
Mounting Hole	88.0 × 65.0	mm
Dot / Pixel Size	0.48 × 0.48	mm
Dot / Pixel Pitch	0.52 × 0.52	mm
IC	ST7920
Interface	6800,SPI
Power Supply	5V
Duty	1/32 duty cycle
Chinese Version	Yes
Type	Graphics LCD Display
Feature	Internal Boost Option

ST7920 IC with 6800/SPI Support

Pin No.	Symbol	Level	Description
1	VSS	0V	Ground
2	VDD	5.0V	Supply voltage for logic
3	VO	－	Supply voltage for LCD
4	RS	－	H: Data , L : Instruction
5	R/W	H/L	H: Read (Module --> MPU) L: Write(MPU --> Module)
6	E	H/L	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	A	－	Power Supply for LED backlight ( + )
16	K	－	Power Supply for LED backlight ( - )
17	RST	H/L	Reset LCM
18	Vout	－	Positive voltage for LCD

Module Dimension & PCB Mounting

12864 LCD Graphic Display Module 2.93-inch COB - RG12864A2 Contour Drawing - Raystar

Operating & Storage Temperature

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
Supply Voltage For Logic	VDD-VSS	-0.3	－	5.5	V
LCD Driver Voltage	VLCD	-0.3	－	7.0	V

Logic Supply Voltage & Power Consumption

Item	Symbol	Condition	Min	Typ	Max	Unit
Supply Voltage For Logic	VDD-VSS	－	4.5	5.0	5.5	V
Supply Voltage For LCD	V0-VSS	Ta=-20℃ Ta=25℃ Ta=+70℃	－ 4.4 －	－ 4.6 －	－ 4.8 －	V V V
Input High Volt	VIH	－	0.7VDD	－	VDD	V
Input Low Volt	VIL	－	-0.3	－	0.6	V
Output High Volt	VOH	－	0.8 VDD	－	VDD	V
Output Low Volt	VOL	－	－	－	0.4	V
Supply Current	IDD	VDD=5.0V	－	2.6	3.0	mA