0.91-inch SPI OLED Display SSD1306 Module 128x32 - REX012832D
0.91-inch SPI OLED Display SSD1306 Module 128x32 - REX012832D
0.91-inch SPI OLED Display SSD1306 Module 128x32 - REX012832D
0.91-inch SPI OLED Display SSD1306 Module 128x32 - REX012832D

0.91-inch COG SPI Graphic OLED Display Module (SSD1306IC)

Model No. REX012832D

The REX012832D is a 0.91-inch SPI OLED display module with 128×32 resolution, featuring a built-in SSD1306 IC and a 4-wire SPI interface. Our SPI OLED display modules utilize the widely adopted OLED SPI communication interface, ensuring high-speed data transmission and simplified hardware integration—especially for wearables, smart control panels, and smart home devices.

Powered by the SSD1306 IC, this SPI OLED SSD1306 module is self-emissive, requiring no backlight and offering high contrast, low power consumption, and fast response times. It supports externally supplied VCC (2.8V to 3.3V, typ. 3.0V) and includes a built-in boost DC/DC converter.

The REX012832D OLED display SPI interface model is available in white, yellow, and sky blue emitting colors, with FPC options such as ZIF and Hotbar to meet various integration needs.

★ Other FPC options available

Data source ref: REX012832DWPP3N00004

Inquiry or Demo Code Datasheet Back Previous Next
  • General Specs
  • Interface Pin Function
  • Contour Drawing
  • Absolute Maximum Ratings
  • Electrical Characteristics
  • Options
Item Dimension Unit
Structure COG
Size (Diagonal) 0.91 inch
Dot Matrix / Resolution 128 × 32 dots
Module Dimension 30.0 × 11.5 × 1.26 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 4-wire SPI
Power Supply 3V
Duty 1/32 duty
Operating Temperature -40~+80 °C
Storage Temperature -40~+85 °C
FPC Options Yes
Type OLED Graphic Display

REX012832D - SPI OLED Module with SSD1306 IC

Pin Function of the SPI OLED SSD1306 Module

Pin No. Symbol Function
1 C2P Positive Terminal of the Flying Inverting CapacitorNegative Terminal of the Flying Boost CapacitorThe charge-pump capacitors are required between the terminals. They must be floated when the converter is not used.
2 C2N
3 C1P
4 C1N
5 VBAT Power Supply for DC/DC Converter Circuit
This is the power supply pin for the internal buffer of the DC/DC voltage converter. It must be connected to external source when the converter is used. It should be connected to VDD when the converter is not used.
6 VSS Ground of Logic Circuit
This is a ground pin. It acts as a reference for the logic pins. It must be connected to external ground.
7 VDD Power Supply for Logic
This is a voltage supply pin. It must be connected to external source.
8 CS# Chip Select
This pin is the chip select input. The chip is enabled for MCU communication only when CS# is pulled low.
9 RES# Power Reset for Controller and Driver
This pin is reset signal input. When the pin is low, initialization of the chip is executed.
10 D/C# 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.
11 SCLK When serial mode is selected, D1 will be the serial data input SDIN and D0 will be the serial clock input SCLK.
12 SDIN
13 IREF Current Reference for Brightness Adjustment
This pin is segment current reference pin. A resistor should be connected between this pin and VSS. Set the current lower than 30uA.
14 VCOMH Voltage Output High Level for COM Signal
This pin is the input pin for the voltage output high level for COM signals. A capacitor should be connected between this pin and VSS.
15 VCC Power Supply for OEL Panel
This is the most positive voltage supply pin of the chip. A stabilization capacitor should be connected between this pin and VSS when the converter is used. It must be connected to external source when the converter is not used.

0.91-inch SPI OLED Display SSD1306 Module 128x32 - REX012832D Contour Drawing

Parameter Symbol Min Max Unit
Supply Voltage for Logic VDD 0 4.0 V
Supply Voltage for Display VCC 0 16.0 V
Operating Temperature TOP -40 +80 °C
Storage Temperature TSTG -40 +85 °C
Item Symbol Condition Min Typ Max Unit
Supply Voltage for Logic VDD － 2.8 3.0 3.3 V
Supply Voltage for Display (Supplied Externally)  VCC － 7 7.25 8 V
Charge Pump Regulator Supply Voltage VBAT － 3.0 － 4.2 V
Charge Pump Output Voltage for Display (Generated by Internal DC/DC) Charge Pump
VCC		 － 7.0 7.5 - 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
Operating Current for VCC (VCC Supplied Externally) ICC VCC =7.25V － 7 11 mA
Display 50% Pixel on (VCC Generated by Internal DC/DC) IBAT － － 15 25 mA

FPC Options

Drawing FPC Length PIN pitch ZIF / HOTBAR FPC Interface FPC No. Create Date
 FPC2065001501XXXXX00_REX012832D 17.06 15 0.65 HOTBAR FPC SPI FPC2065001501XXXXX00 20140827
 FPC2050001511XXXXX02_REX012832D 40.76 15 0.5 ZIF FPC SPI FPC2050001511XXXXX02 20150421
 FPC2062001401XXXXX02_REX012832D 11.26 14 0.62 HOTBAR FPC I2C FPC2062001401XXXXX02 20160106

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