1.5 OLED, 1.5 inch OLED Display Module - REA128128A - Raystar

1.5 inch OLED Display Module 128x128 COG+PCB (SSD1327 IC)

Model No. REA128128A

The REA0128128A is a 1.5 inch OLED display designed as a 128×128 COG+PCB graphic OLED 1.5 inch module powered by the SSD1327 controller IC. The additional PCB simplifies development by providing cable connection support and integrating the interface and VCC circuit, saving users the effort of designing their own PCB. With a passive matrix structure, 4-bit grayscale, and monochrome display in white or yellow, this 1.5 OLED module delivers sharp and versatile visual output. Four screw holes on the PCB further enhance usability, allowing quick mounting and easy assembly.

Designed for reliability, the REA0128128A operates in temperatures from -40°C to +80°C, making it suitable for demanding environments. Its compact size, user-friendly design, and low power consumption make it an excellent fit for smart home appliances, medical equipment, dashboards, and other embedded applications. Whether you need a 1.5 inch OLED module or an OLED 1.5 inch solution, this display offers consistent performance and design flexibility.

If you need technical support or product quotes for the REA0128128A or other 1.5 inch OLED display modules, please feel free to contact our sales team!

Data Source Ref: REA128128AWAP3N00000

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

Item	Dimension	Unit
Structure	COG + PCB
Size (Diagonal)	1.5	inch
Dot Matrix / Resolution	128 × 128	dots
Module Dimension	34.2 × 45.5 × 3.16	mm
Viewing Area	28.86 × 28.86	mm
Active Area	26.86 × 26.86	mm
Dot / Pixel Size	0.185 × 0.185	mm
Dot / Pixel Pitch	0.210 × 0.210	mm
Emitting Color	OLED, Yellow / White
Support Grayscale	Yes
Display Mode	Passive Matrix
Gray Scale	4 bits
IC	SSD1327
Interface	4-wire SPI / I2C
Power Supply	3.3V / 5V
Duty	1/128 duty
Operating Temperature	-40~+80	°C
Storage Temperature	-40~+85	°C
Polarizer Type	Polarizer Optional
Type	OLED Graphic Display

Pin Function of SPI/I2C 1.5 inch OLED Display Module

Pin No.	Symbol	Function
1	GND	This is a ground pin.
2	VCC	Power supply for panel driving voltage. This is also the most positive power voltage supply pin. It is supplied by external high voltage source.
3	D0	These pins are bi-directional data bus connecting to the MCU data bus. Unused pins are recommended to tie LOW. When serial interface mode is selected, D0 will be the serial clock input: SCLK; D1 will be the serial data input: SDIN and D2 should be kept NC.
4	D1
5	RES#	This pin is reset signal input. When the pin is pulled LOW, initialization of the chip is executed. Keep this pin pull HIGH during normal operation.
6	D/C#	This pin is Data/Command control pin connecting to the MCU. When the pin is pulled HIGH, the data at D[7:0] will be interpreted as data. When the pin is pulled LOW, the data at D[7:0] will be transferred to a command register.
7	CS#	This pin is the chip select input connecting to the MCU. The chip is enabled for MCU communication only when CS# is pulled LOW (active LOW).

Module Dimension of 1.5 OLED Module

1.5 OLED, 1.5 inch OLED Display Module - REA128128A Contour Drawing - Raystar

Operating Limits of OLED 1.5 inch Design

Parameter	Symbol	Min	Max	Unit
Supply Voltage for Logic	VCC	1.65	5.5	V
Operating Temperature	TOP	-40	+80	°C
Storage Temperature	TSTG	-40	+85	°C

DC Electrical Characteristics of 1.5 inch OLED Display

Item	Symbol	Condition	Min	Typ	Max	Unit
Supply Voltage for Logic(3V/5V)	VCC	－	2.8	3.3	5.2	V
Input High Volt	VIH	－	0.8×VCC	－	VCC	V
Input Low Volt	VIL	－	0	－	0.2×VCC	V
Output High Volt	VOH	－	0.9×VCC	－	VCC	V
Output Low Volt	VOL	－	0	－	0.1×VCC	V
50% Check Board Operating Current	ICC	VCC=3.3V	－	160	320	mA