3.12" 256x64 COF OLED Display With PCB and Frame
Model No. WEN025664B
►Type: Graphic
►Structure: COF+PCB+Frame
►Size: 3.12"
►256 x 64 Dot Matrix
►Built-in controller SSD1322
►3V Power supply
►1/64 duty
►Interface: 6800, 8080, SPI
►Display Color: White / Yellow / Sky Blue / Green
►Support Grayscale
Description
The WEN025664B model is a COF Graphic OLED, featuring a diagonal size of 3.12 inches and a resolution of 256x64 dots. This OLED module is built-in with the SSD1322 IC and supports 8-bits 6800/8080 and 3/4-line SPI interfaces. It has an outline dimension of 89.2 × 44.0 mm, with an active area size of 76.78 × 19.18 mm. It also supports 4-bits grayscale, with a logic supply voltage of 3V. The display's current at 50% check board is 150mA @3.0V VDD (typical value), with a driving duty of 1/64.
The module has a built-in PCB, allowing customers to use wire connections without the need for additional PCB development for their applications. Additionally, the integrated VCC circuit on the PCB simplifies customer usage. This PCB board, equipped with four mounting holes, provides an easy method for customers to secure modules in their applications. This OLED module is suitable for smart home applications, medical devices, industrial control, etc.
The WEN025664B model can operate at temperatures ranging from -40℃ to +80℃, with storage temperatures ranging from -40℃ to +85℃. The OLED module features a high contrast ratio of 10,000:1, resulting in enhanced image quality, sharper details, and improved readability, especially in low-light environments.
Furthermore, OLED panels with the same dimensions offer a variety of alternatives:- WEX025664B series without a metal frame and PCB
- WEX025664B-CTP series without a metal frame, PCB, and with a CTP touch screen
- WEN025664B-CTP series with a metal frame, PCB, and CTP touch screen
DRAWING
Data source ref: WEN025664BWAP3N0000
SPECIFICATIONS
Interface Pin Function
Pin Number |
Symbol | I/O | Function | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1 | VSS | P | Ground. | ||||||||||
2 | VDD | P | Power Supply for Core Logic Circuit Power supply pin for core logic operation. A capacitor is required to connect between this pin and VSS |
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3 | N.C. | P | Reserved Pin The N.C. pin between function pins are reserved for compatible and flexible design. |
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4 | D/C# | I | Data/Command Control This pin is Data/Command control pin connecting to the MCU. When the pin is pulled HIGH, the content at D[7:0] will be interpreted as data. When the pin is pulled LOW, the content at D[7:0] will be interpreted as command. |
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5 | R/W# (WR#) |
I | Read/Write Select or Write This pin is MCU interface input. When interfacing to a 68XX-series microprocessor, this pin will be used as Read/Write (R/W#) selection input. Pull this pin to “High” for read mode and pull it to “Low” for write mode. When 80XX interface mode is selected, this pin will be the Write (WR#) input. Data write operation is initiated when this pin is pulled low and the CS# is pulled low. When serial mode is selected, this pin must be connected to VSS. |
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6 | E/RD# | I | Read/Write Enable or Read This pin is MCU interface input. When interfacing to a 68XX-series microprocessor, this pin will be used as the Enable (E) signal. Read/write operation is initiated when this pin is pulled high and the CS# is pulled low. When connecting to an 80XX-microprocessor, this pin receives the Read (RD#) signal. Data read operation is initiated when this pin is pulled low and CS# is pulled low. When serial mode is selected, this pin must be connected to VSS. |
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7~14 | DB0 | I/O | Host Data Input/Output Bus These pins are 8-bit bi-directional data bus to be connected to the microprocessor’s data bus. When serial mode is selected, DB1 will be the serial data input SDIN and DB0 will be the serial clock input SCLK. |
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DB1 | |||||||||||||
DB2 | |||||||||||||
DB3 | |||||||||||||
DB4 | |||||||||||||
DB5 | |||||||||||||
DB6 | |||||||||||||
DB7 | |||||||||||||
15 | NC | P | Reserved Pin The N.C. pin between function pins are reserved for compatible and flexible design. |
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16 | RES# | I | This pin is reset signal input. When the pin is pulled LOW, initialization of the chip is executed. Keep this pin pull HIGH during normal operation. |
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17 | CS# | I | Data/Command Control This pin is the chip select input connecting to the MCU. The chip is enabled for MCU communication only when CS# is pulled LOW. |
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18 |
NC | P | Reserved Pin The N.C. pin between function pins are reserved for compatible and flexible design. |
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19 | BS1 | I | Communicating Protocol Select These pins are MCU interface selection input. See the following table:
(1) 0 is connected to VSS (2) 1 is connected to VDD |
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20 | BS0 | ||||||||||||
21~24 | NC | P | Reserved Pin The N.C. pin between function pins are reserved for compatible and flexible design. |
General Specification
Item | Dimension | Unit |
---|---|---|
Dot Matrix | 256 x 64 Dots | - |
Module dimension | 89.2 × 44.0 × 3.3 Max. | mm |
Active Area | 76.78 × 19.18 | mm |
Pixel Size | 0.278 × 0.278 | mm |
Pixel Pitch | 0.3 × 0.3 | mm |
Display Mode | Passive Matrix | |
Display Color | Monochrome | |
Drive Duty | 1/64 Duty | |
Gray Scale | 4 bits | |
IC | SSD1322 (COF) | |
Interface | 6800, 8080, SPI | |
Size | 3.12 inch |
Absolute Maximum Ratings
Parameter | Symbol | Min | Max | Unit |
---|---|---|---|---|
Supply Voltage for Display | VDD | -0.3 | 4 | V |
Operating Temperature | TOP | -40 | 80 | °C |
Storage Temperature | TSTG | -40 | 85 | °C |
Electronical Characteristics
Item | Symbol | Condition | Min | Typ | Max | Unit |
---|---|---|---|---|---|---|
Supply Voltage for Logic | VDD | - | 2.8 | 3.0 | 3.3 | V |
High Level Input | VIH | - | 0.8×VDD | - | VDD | V |
Low Level Input | VIL | - | 0 | - | 0.2×VDD | V |
High Level Output | VOH | - | 0.9×VDD | - | VDD | V |
Low Level Output | VOL | - | 0 | - | 0.1×VDD | V |
50% Check Board operating Current | IDD | VCC =3V | - | 150 | 300 | mA |
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