2.7 Inch OLED Display Module 128×64 Yellow Graphic SPI 20Pin
2.7-Inch OLED Display Module: High-Performance 128x64 Yellow Graphic SPI with 20-Pin Interface Overview
The 2.7-inch OLED display module is a high-contrast, energy-efficient graphical display with a resolution of 128×64 pixels. Featuring a monochrome yellow, white, or green font color, this module employs the SSD1325 driver IC, supporting multiple communication protocols such as 8-bit 68XX/80XX parallel and SPI. Designed with a compact and lightweight form factor, it is ideal for integration into a wide range of electronic applications requiring clear, high-resolution visual output.
Technical Specifications
| Parameter | Specification |
|---|---|
| Display Size | 2.7 inches |
| Resolution | 128×64 pixels |
| Font Color | Yellow/White/Green |
| Driver IC | SSD1325 |
| Interface | 8-BIT 68XX/80XX Parallel, SPI |
| Pin Count | 20 pins |
| Module Size | 85.0L × 58.0W × 6.3H mm |
| Viewing Area | 65.0 × 33.0 mm |
| Effective Area | 128 × 64 dots |
| Pixel Size | 0.45 × 0.45 mm |
| Pixel Pitch | 0.48 × 0.48 mm |
Key Features and Performance
High-Contrast OLED Display
OLED (Organic Light Emitting Diode) technology enables this display module to deliver exceptional contrast, deep blacks, and vibrant colors. Unlike LCDs, OLEDs do not require a backlight, making them more energy-efficient while ensuring superior visibility in both bright and dark environments.
SSD1325 Driver IC Integration
The SSD1325 driver IC offers robust graphical processing, supporting various grayscale levels for enhanced image rendering. Its compatibility with multiple interface protocols ensures seamless communication with a range of microcontrollers and embedded systems.
Versatile Interface Compatibility
The display module supports both SPI and 8-bit parallel interfaces, making it highly adaptable for different hardware configurations. The SPI protocol enables streamlined communication with microcontrollers, reducing pin usage, while the parallel interface provides high-speed data transfer.
Optimized Size for Embedded Systems
With a module size of 85.0mm × 58.0mm × 6.3mm, this OLED display is compact yet sufficiently large for clear visual representation. The 20-pin configuration ensures stable connections and reliable signal transmission.
Applications
Industrial Control Panels
Due to its high contrast and wide viewing angles, this OLED module is widely used in industrial control systems, providing clear graphical data in various lighting conditions.
Handheld Devices
Its compact form factor and low power consumption make it an excellent choice for battery-powered handheld instruments requiring a high-resolution display.
Wearable Technology
The high efficiency and clarity of the OLED module contribute to its integration into next-generation wearable electronics, enhancing user experience with sharp and vibrant graphical representation.
Conclusion
The 2.7-inch OLED display module, featuring a 128×64 resolution and SSD1325 driver IC, provides exceptional visual performance with flexible connectivity options. Its superior contrast, energy efficiency, and compact design make it a highly versatile choice for a variety of electronic applications, from industrial instrumentation to consumer electronics. By leveraging OLED technology, this module ensures reliability, longevity, and outstanding visual output for modern embedded systems.
Drawing
Pin Description
Parallel Interface(8080): (R18,R20 USE; R19,R21 NO USE)
| ITEM | SYMBOL | LEVEL | FUNCTION |
|---|---|---|---|
| 1 | VSS | 0V | Power Ground |
| 2 | VBAT | +3.3~+5.0V | Power Supply For Logic |
| 3 | NC | – | No connect |
| 4 | D/C(RS) | H/L | H: Data L: Command |
| 5 | WR | H/L | 8080: Active LOW Write signal |
| 6 | RD | H/L | 8080: Active LOW Read signal |
| 7~14 | D0~D7 | H/L | Data Bus |
| 15 | /CS | L | Chip Select |
| 16 | /RST | H/L | Active LOW Reset signal |
| 17~19 | NC | — | No connection |
| 20 | FG | 0V | Power Ground |
Parallel Interface(6800): ( R19,R20 USE; R18,R21 NO USE)
| ITEM | SYMBOL | LEVEL | FUNCTION |
|---|---|---|---|
| 1 | VSS | 0V | Power Ground |
| 2 | VBAT | +3.3~+5.0V | Power Supply For Logic |
| 3 | NC | – | No connect |
| 4 | D/C(RS) | H/L | H: Data L: Command |
| 5 | WR | H/L | 6800: Read/Write select signal, R/W=1: Read R/W=0: Write |
| 6 | RD | H/L | 6800: Operation enable signal. Falling edge triggered. |
| 7~14 | D0~D7 | H/L | Data Bus |
| 15 | /CS | L | Chip Select |
| 16 | /RST | H/L | Active LOW Reset signal |
| 17~19 | NC | — | No connection |
| 20 | FG | 0V | Power Ground |
SPI: (R19,R21 USE; R18,R20 NO USE)
| ITEM | SYMBOL | LEVEL | FUNCTION |
|---|---|---|---|
| 1 | VSS | 0V | Power Ground |
| 2 | VBAT | +3.3~+5.0V | Power Supply For Logic |
| 3 | NC | – | No connect |
| 4 | D/C(RS) | H/L | H: Data L: Command |
| 5 | WR | 0V | Power Ground |
| 6 | RD | 0V | Power Ground |
| 7 | SCLK(D0) | H/L | Serial Clock signal |
| 8 | SDIN(D1) | H/L | Serial Data input signal |
| 9 | DB2 | – | No connect |
| 10~14 | DB3~DB7 | 0V | Power Ground |
| 15 | /CS | L | Chip Select |
| 16 | /RST | H/L | Active LOW Reset signal |
| 17~19 | NC | — | No connection |
| 20 | FG | 0V | Power Ground |
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Frequently Asked Question
The module has a resolution of 128×64 pixels.
OLED technology offers high contrast, deep blacks, better energy efficiency, and does not require a backlight.
The SSD1325 driver IC supports various grayscale levels and ensures seamless communication with microcontrollers.
SPI reduces pin usage and simplifies wiring, making it ideal for compact and efficient system designs.
The module measures 85.0mm × 58.0mm × 6.3mm.
The available font colors are Yellow, White, and Green.
It is commonly used in industrial control panels, handheld devices, and wearable technology.
It uses the SSD1325 driver IC.
It supports 8-bit 68XX/80XX parallel and SPI interfaces.
Its optimized size allows easy integration into space-constrained electronic devices while maintaining high-resolution display quality.
