Model No. WEA025664A
►Type: Graphic
►Structure: COG+PCB
►Size: 2.08 inch
►256x64 Dot Matrix
►IC：SSD1362
►3V Power supply
►1/64 duty
►Interface: SPI
►Display Color: White / Yellow
►Support Grayscale
►Traditional Chinese version options (Font IC: GT21L16T1W)
WEA025664A is a 2.08-inch graphic COG OLED display module with an onboard PCB and a resolution of 256x64 pixels. The module is built with the SSD1362 driver IC and supports a 4-line SPI interface. The PCB design with mounting holes helps simplify module installation in application systems.
An optional version is available with the GT21L16T1W font IC, supporting GB12345 Traditional Chinese, BIG5 Traditional Chinese, and JIS0208 Japanese character sets, together with multilingual font libraries for applications used across more than 150 countries. The module operates from 2.8V to 5.2V (typ. 3.3V) and supports 4-bit grayscale.
WEA025664A can operate at temperatures from -40°C to +80°C, with storage temperatures ranging from -40°C to +85°C. It is suitable for smart home appliances, measuring instruments, portable devices, medical equipment, and personal health monitoring applications.
| Item | Dimension | Unit |
|---|---|---|
| Dot Matrix | 256 x 64 Dots | － |
| Module dimension | 70.0 x 22.0 x 1.76 | mm |
| Active Area | 51.18 x 12.78 | mm |
| Pixel Size | 0.18 x 0.18 | mm |
| Pixel Pitch | 0.2 x 0.2 | mm |
| Display Mode | Passive Matrix | |
| Display Color | Monochrome | |
| Drive Duty | 1/64 Duty | |
| Gray Scale | 4 Bits | |
| IC | SSD1362 | |
| Interface | SPI | |
| Size | 2.08 inch | |
| Parameter | Symbol | Min | Max | Unit |
|---|---|---|---|---|
| Supply Voltage | VCC | 1.65 | 5.5 | V |
| Operating Temperature | TOP | -40 | +80 | °C |
| Storage Temperature | TSTG | -40 | +85 | °C |
| Item | Symbol | Condition | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Supply Voltage | VCC | － | 2.8 | 3.3 | 5.2 | V |
| Input High Volt. | VIH | － | 0.8×VCC | － | VCC | V |
| Input Low Volt. | VIL | － | 0 | － | 0.2×VCC | V |
| Output High Volt. | VOH | － | 0.9×VCC | － | VCC | V |
| Output Low Volt. | VOL | － | 0 | － | 0.1×VCC | V |
| 50% Check Board operating Current | ICC | VCC=3.3V | － | 90 | 135 | mA |
| No. | Symbol | Function |
|---|---|---|
| 1 | GND | Reserved pin. It should be connected to ground. |
| 2 | VCC | Power supply input: 2.8 - 5.2V |
| 3 | D0 | These pins are bi-directional data bus connecting to the MCU data bus. Unused pins are recommended to tie LOW. When serial interface mode is selected, D0 will be the serial clock input: SCLK; D1 will be the serial data input: SID. |
| 4 | D1 | |
| 5 | RES# | 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. |
| 6 | D/C# | This pin is Data/Command control pin connecting to the MCU. When the pin is pulled HIGH, the data at D[1:0] will be interpreted as data. When the pin is pulled LOW, the data at D[1:0] will be transferred to a command register. |
| 7 | CS# | This pin is the chip select input connecting to the MCU. The chip is enabled for MCU communication only when CS# is pulled LOW (active LOW). |
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