Engineered for Minimalist Excellence: The 0.91-Inch OLED Display
Module for Demanding Embedded Applications
Saef Technology Limited presents the SFOM091JY-12832WB-01, a
high-performance 0.91-inch PMOLED display module designed for
engineers and developers who require ultra-compact, low-power, and
reliable displays for embedded systems, wearable devices, IoT
interfaces, and industrial instrumentation. With its crisp 128x32
resolution, I²C interface, and robust SSD1306 driver, this module
delivers exceptional clarity and ease of integration in
space-constrained designs across Europe and the United States.
Key Design Parameters & Technical Superiority
Ultra-Compact Form Factor:
Measuring only 38.0 x 12.0 x 3.1 mm, this display is ideal for
wearable tech, medical monitors, smart sensors, and portable
instruments where every millimeter counts.
High-Contrast PMOLED Technology:
Featuring a 2000:1 contrast ratio and 150–180 cd/m² brightness,
this OLED delivers sharp, self-emissive pixels with wide viewing
angles and no backlight—perfect for low-light or sunlight-readable
applications.
Wide Operating Temperature Range:
Rated for -40°C to 70°C, this module performs reliably in extreme
environments, from industrial automation to outdoor wearables.
Low Power Consumption:
With sleep mode currents as low as 1 μA (VDD) and 2 μA (VCC), this
display extends battery life in power-sensitive designs.
Flexible Power Architecture:
Supports both external VCC (6.4V–9V) and internal DC/DC conversion
from VBAT (3.5V–4.2V), simplifying power system design.
I²C Interface with Full Command Control:
Based on the industry-standard SSD1306, the module offers complete
programmability for multiplex ratios, COM scan direction, contrast,
pre-charge periods, and VCOMH levels—enabling fine-tuned
optimization for your application.
Solve Your Embedded Design Challenges
Struggling with limited PCB real estate?
Our 0.91-inch OLED fits into tight layouts with a simple 4-pin
interface (GND, VCC, SCL, SDA), reducing routing complexity and BOM
cost.
Need a display that works in freezing or high-temperature
environments?
With an operating range of -40°C to 70°C and full compliance with
industrial reliability testing (including vibration, ESD, and
temperature cycling), this module is built for harsh conditions.
Concerned about power management in battery-operated devices?
The integrated DC/DC converter and ultra-low sleep currents enable
years of operation on a single coin cell.
Looking for a display that supports custom font colors or graphics?
While standard models come in white or blue, Saef offers free
semi-custom modifications including color tuning, custom pinouts,
firmware tweaks, and even touchscreen integration (RTP/CTP) upon
request.
Why Choose Saef Technology?
ISO 9001:2015 & ISO 14001:2015 Certified – Your assurance of
quality and environmental responsibility.
Full SSD1306 Command Support – Datasheet includes detailed timing
diagrams, initialization sequences, and power-up/down protocols.
Reliability Tested – Includes high/low temperature operation,
storage, humidity, vibration, ESD, and drop tests.
Engineer-to-Engineer Support – Access to technical documentation,
sample code, and direct factory engineering consultation.
Target Applications
Wearable Devices (Smartwatches, Fitness Trackers)
Medical Monitoring Equipment
IoT Dashboards & Sensor Displays
Industrial HMIs & Instrumentation
Consumer Electronics (Portable Audio, Gaming)
Automotive & Aviation Interfaces
Smart Home Controls
Ordering & Customization
Ready to integrate? Contact our engineering team for free
customization quotes, sample requests, or firmware support. We
support low MOQ and fast turnaround for OEM/ODM projects, including
touchscreen integration, bezel modifications, and custom connector
layouts.
Call to Action
Download the full datasheet, view command tables, or request a
development sample today. Let Saef Technology empower your next
embedded vision with displays engineered for reliability, clarity,
and ease of integration.
Mechanical Dimensions
Interface Pin Definition
| PIN | SYMBOL | Descriptions |
| 1 | GND | Ground of Logic Circuit |
| 2 | VCC | Power Supply for Logic |
| 3 | SCK | Serial clock input. |
| 4 | SDA | Serial data input. |
Absolute Maximum Ratings
| Parameter | Symbol | Min | Max | Unit |
| Supply Voltage for Logic | VDD | -0.3 | 4 | V |
| Supply Voltage for Display | VCC | 0 | 16.5 | V |
| Supply Voltage for DC/DC | VBAT | -0.3 | 4.5 | V |
| Operating Temperature | TOP | -40 | 70 | .C |
| Storage Temperature | TSTG | -40 | 85 | .C |
| Life Time (110 cd/m2) | | 10/000 | - | hour |
| Life Time (80 cd/m2) | | 30/000 | - | hour |
| Life Time (60 cd/m2) | | 50/000 | - | hour |
Optics Characteristics
| Characteristics | Symbol | Conditions | Min | Typ | Max | Unit |
Brightness (VCC Supplied Externally) | Lbr | - | 90 | - | - | cd/m2 |
Brightness (VC Generated by Internal DC/DC) | Lbr | - | 80 | 110 | - | cd/m2 |
| C.I.E. (White) | (x) (y) | C.I.E. 1931 | 0.25 0.27 | 0.29 0.31 | 0.33 0.35 | |
| Dark Room Contrast | CR | | - | 2000:1 | - | |
| Viewing Angle | | | - | Free | - | degree |
DC Characteristics
| Characteristics | Symbol | Conditions | Min | Typ | Max | Unit |
| Supply Voltage for Logic | VDD | | - | 3.3 | - | V |
Supply Voltage for Display (Supplied Externally) | VCC | Note 5 (Internal DC/DC Disable) | 8.5 | 9.0 | 9.5 | V |
| Supply Voltage for DC/DC | VBAT | Internal DC/DC Enable | - | 3.3 | - | V |
| Supply Voltage for Display Generated by Internal DC/DC | VCC | Note 6 (Internal DC/DC Enable) | 7.0 | - | 7.5 | V |
| High Level Input | VIH | IOUT = 100μA/ 3.3MHz | 0.8×VDD | - | VDD | V |
| Low Level Input | VIL | IOUT = 100μA/ 3.3MHz | 0 | - | 0.2×VDD | V |
| High Level Output | VOH | IOUT = 100μA/ 3.3MHz | 0.9×VDD | - | VDD | V |
| Low Level Output | VOL | IOUT = 100μA/ 3.3MHz | 0 | - | 0.1×VDD | V |
| Operating Current for VDD | IDD | | - | 160 | 220 | μA |
| Operating Current for VCC (VCC Supplied Externally) | ICC | | - | 9 | 15 | mA |
| Operating Current for VBAT (VCC Generated by Internal DC/DC) | IBAT | | - | 27.0 | 32.0 | mA |
| Sleep Mode Current for VDD | IDD/ SLEEP | | - | - | 10 | μA |
Sleep Mode Current for VCC
| ICC/ SLEEP | | - | - | 10 | μA |
Contact Us
We love to hear about your projects, If you have any questions, we
can be reached at cologne_ke@saef.com.cn
