128×32 SSD1306 OLED Display Module - REA012832E - Raystar

128×32 SSD1306 OLED Display Module COG+PCB SPI Interface

Model No. REA012832E

The REA012832E is a 1.04-inch 128×32 COG+PCB graphic OLED SSD1306 display module, powered by the SSD1306 IC. An SSD1306 OLED 128×32 module is a compact, low-power solution that delivers sharp monochrome graphics with high contrast, wide viewing angles, and flexible interface options. This OLED SSD1306 module also features a passive matrix design with 1/32 duty cycle, a built-in DC/DC boost converter, and support for external VCC supply. Available in white and yellow emitting colors, it ensures clear and reliable performance for compact applications.

This SSD1306 128×32 OLED series integrates a Unicode font IC—GT21L16T1W supporting Traditional Chinese and GT21L16S2W supporting Simplified Chinese—making it suitable for multilingual applications. With SPI interface, a wide input voltage range (2.8V–5.2V), and an operating temperature from -40°C to +80°C, the REA012832E is ideal for handheld devices, measurement instruments, and control panels.

If you need technical support or quotations for the REA012832E or other 128×32 SSD1306 OLED display modules, please contact our sales team.

Data Source Ref: REA012832EWPP3N00000

Inquiry or Demo Code Datasheet Back Previous Next

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

Item	Dimension	Unit
Structure	COG + PCB
Size (Diagonal)	1.04	inch
Dot Matrix / Resolution	128 × 32	dots
Module Dimension	35.4 × 23.5 × 1.8 (MAX)	mm
Viewing Area	27.58 × 8.38	mm
Active Area	25.58 × 6.38	mm
Dot / Pixel Size	0.176 × 0.176	mm
Dot / Pixel Pitch	0.20 × 0.20	mm
Emitting Color	OLED, White / Yellow
IC	SSD1306
Interface	SPI
Font IC	GT21L16T1W (Traditional Chinese) / GT21L16S2W (Simplified Chinese)
Power Supply	3V
Duty	1/32 duty
Operating Temperature	-40~+80	°C
Storage Temperature	-40~+85	°C
Polarizer Type	Polarizer Optional
Type	SSD1306 128x32 OLED Graphic Display

Pin Function Details for SSD1306 OLED 128×32 odule

No.	Symbol	Function
1	SDI	Serial data input This pin connects font IC of SDI and OLED drive IC of SDI.
2	SCL	Serial clock input This pin connects font IC of SCL and OLED drive IC of SCL.
3	DC	This is Data/Command control pin.
4	RES	This pin is reset signal input. When the pin is pulled LOW, initialization of the chip is executed.
5	CS	This pin is the chip select input. (active LOW).
6	VIN	Input voltage for 2.8 ~ 5.2V power supply.
7	GND	This is a ground pin.
8	SDO	Serial Data Output for font IC. Data is shifted out on the falling edge of the serial clock.
9	CS_G	Chip Select input for font IC. This pin is the chip select input. (active LOW).
10	NC	Not connection

Outline Dimensions of 128×32 SSD1306 OLED Module

128×32 SSD1306 OLED Display Module - REA012832E Contour Drawing - Raystar

Operating Limits for OLED SSD1306 128×32 Display

Parameter	Symbol	Min	Max	Unit
Supply Voltage for input	VIN	2	7	V
Operating Temperature	TOP	-40	+80	°C
Storage Temperature	TSTG	-40	+85	°C

DC Electrical Characteristics of SSD1306 128×32 OLED

Item	Symbol	Condition	Min	Typ	Max	Unit
Supply Voltage for Input	VIN	－	2.8	3.0	5.2	V
Input High Volt	VIH	－	2.4	－	3.2	V
Input Low Volt	VIL	－	0	－	0.6	V
Output High Volt	VOH	－	2.7	－	3.2	V
Output Low Volt	VOL	－	0	－	0.3	V
50% Check Board Operating Current	IIN	VIN=3V	－	13.0	26.0	mA