Model No. WEA012864A
►Type: Graphic
►Structure: COG+PCB
►Size: 1.54"
►Suitable for Wearable Device
►128 x 64 Dot Matrix
►IC：SSD1309
►3V Power supply
►1/64 duty
►Interface: 4-wire SPI / I2C Option
►Display Color: White / Yellow / Green
The WEA012864A is the version of WEO012864A with an integrated PCB. It has a diagonal size of 1.54 inches and a resolution of 128×64 pixels. The PCB features four mounting holes for easy installation in customer applications.
This OLED module is built with the SSD1309 driver IC and supports a 4-wire SPI interface with an optional I2C interface. It has a driving duty of 1/64, logic supply voltage from 3.3V to 5V, and I/O levels of 3–5V with conversion circuitry. Typical display current at 50% pixels on is 80 mA @ 3.3V VDD.
The WEA012864A module is suitable for smart home devices, medical equipment, smart control systems, meters, and other compact systems. It operates over a temperature range of -40°C to +80°C and can be stored between -40°C and +85°C.
| Item | Dimension | Unit |
|---|---|---|
| Dot Matrix | 128 × 64 | - |
| Module dimension | 42.4 × 38 × 2.56 | mm |
| Active Area | 35.05 × 17.51 | mm |
| Pixel Size | 0.249 × 0.249 | mm |
| Pixel Pitch | 0.274 × 0.274 | mm |
| Display Mode | Passive Matrix | |
| Display Color | Monochrome | |
| Drive Duty | 1/64 Duty | |
| IC | SSD1309 | |
| Interface | 4-Wire SPI / I2C Option | |
| Size | 1.54 inch | |
| Parameter | Symbol | Min | Max | Unit |
|---|---|---|---|---|
| Supply Voltage for Display | VCC | 2 | 6 | V |
| Operating Temperature | TOP | -40 | +80 | °C |
| Storage Temperature | TSTG | -40 | +85 | °C |
| Item | Symbol | Condition | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Supply Voltage for Logic | VCC | － | 2.8 | 3.3 | 5.5 | V |
| High Level Input | VIH | － | 0.8×VCC | － | － | V |
| Low Level Input | VIL | － | － | － | 0.2×VCC | V |
| High Level Output | VOH | － | 0.9×VCC | － | － | V |
| Low Level Output | VOL | － | － | － | 0.1×VCC | V |
| 50% Check Board operating Current | VCC =3.3V | － | 80 | 160 | mA | |
| No. | Symbol | Function |
|---|---|---|
| 1 | GND | Ground pin. |
| 2 | VCC | Power supply pin for core logic operation. |
| 3 | D0 | The serial clock input |
| 4 | D1 | The serial data input |
| 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 D1 will be interpreted as data. When the pin is pulled LOW, the data at D1 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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