0.91-inch OLED 128x32 Display Module - REA012832D - Raystar

0.91-inch OLED 128x32 Graphic Display Module COG+PCB (SSD1306 IC)

Model No. REA012832D

The REA012832D is a 0.91 OLED Graphic display module (COG+PCB) designed for compact applications. This 0.91 inch OLED display features a slim form factor with PCB screw holes and peripheral circuit, ensuring easy mounting and integration. Powered by the SSD1306 controller IC, the 0.91 inch OLED module supports an SPI interface, a built-in boost DC/DC converter, and externally supplied VCC, offering developers flexible power solutions.

Available in white, yellow, and sky blue emitting colors, the 0.91 OLED display delivers sharp, high-contrast visuals with stable performance across a wide operating temperature range from -40°C to +80°C. Combining reliability, energy efficiency, and user-friendly design, this OLED 0.91 128x32 module is an excellent choice for handheld devices, embedded systems, and other space-limited projects.

If you need technical support or product quotes for the REA012832D or other OLED display 0.91 128x32 modules, please feel free to contact our sales team!

Data Source Ref: REA012832DWPP3N00001

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

Item	Dimension	Unit
Structure	COG + PCB
Size (Diagonal)	0.91	inch
Dot Matrix / Resolution	128 × 32	dots
Module Dimension	32.5 × 20.5 × 2.51	mm
Viewing Area	24.384 × 7.584	mm
Active Area	22.384 × 5.584	mm
Dot / Pixel Size	0.152 × 0.152	mm
Dot / Pixel Pitch	0.175 × 0.175	mm
Emitting Color	OLED, Yellow / White / Sky Blue
Display Mode	Passive Matrix
IC	SSD1306
Interface	SPI
Power Supply	3V
Duty	1/32 duty
Operating Temperature	-40~+80	°C
Storage Temperature	-40~+85	°C
Type	OLED Graphic Display

Pin Definitions for 0.91 inch OLED Display

Pin No.	Symbol	Function
1	SDA	When serial mode is selected, D1 will be the serial data input SDIN and D0 will be the serial clock input SCLK.
2	SCL
3	DC	Data/Command Control This pin is Data/Command control pin.. When the pin is pulled high and serial interface mode is selected, the data at SDIN is treated as data. When it is pulled low, the data at SDIN will be transferred to the command register.
4	RST	This pin is reset signal input. When the pin is pulled LOW, initialization of the chip is executed. Keep this pin HIGH (i.e. connect to VDD) during normal operation.
5	CS	This pin is the chip select input. (active LOW).
6	VDD	2.8 ~ 3.3V Power supply pin for core logic operation.
7	VIN	4.8 ~ 5.2V Power supply pin for core logic operation.
8	GND	This is a ground pin.

Mechanical Outline of 0.91 inch OLED Module

0.91-inch OLED 128x32 Display Module - REA012832D Contour Drawing - Raystar

Limits and Reliability of 0.91 OLED 128x32 Display

Parameter	Symbol	Min	Max	Unit
Supply Voltage for Logic	VDD	1.65	3.3	V
Supply Voltage for Logic	VIN	4.0	6.0	V
Operating Temperature	TOP	-40	+80	°C
Storage Temperature	TSTG	-40	+85	°C

DC Electrical Characteristics

Power and Signal Details for 0.91 inch OLED Display

Item	Symbol	Condition	Min	Typ	Max	Unit
Supply Voltage for Logic (3V)	VDD	－	2.8	3.0	3.3	V
Supply Voltage for Logic (5V)	VIN	－	4.8	5.0	5.2	V
Input High Volt	VIH	－	0.8×VDD	－	VDD	V
Input Low Volt	VIL	－	0	－	0.2×VDD	V
Output High Volt	VOH	－	0.9×VDD	－	VDD	V
Output Low Volt	VOL	－	0	－	0.1×VDD	V
50% Check Board Operating Current	ICC	VDD=3V	－	13.0	26.0	mA