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
WEA012864A model is the extension item of WEO012864A which is having a PCB board on module; it's diagonal size 1.54 inch, made of 128x64 pixels. This PCB board with four mounting holes is an easy method for customers to fix modules on their applications. WEA012864A module is built in with SSD1309 IC; it supports 4-wire SPI interface; optional I2C interface, driving duty 1/64, supply voltage for logic is from 3.3V ~5V, I/O level 5V to 3V with conversion circuit, the display with 50% check board current is 80mA @3.3VDD (typical value).
This OLED module is suitable for smart home application, medical device, smart control, meter, etc. WEA012864A module can be operating at temperatures from -40℃ to +80℃; its storage temperatures range from -40℃ to +85℃.
| 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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