Model No. WEA128128A
►Type: Graphic
►Structure: COG+PCB
►Size: 1.5"
►128 x 128 Dot Matrix
►IC：SSD1327
►3.3V/5V Power supply
►1/128 duty
►Interface: SPI,option I2C
►Display Color: White / Yellow
►Support Grayscale
WEA128128A model is the extension item of WEO128128A which is having a PCB board on module; it’s diagonal size 1.5 inch, made of 128x128 pixels. This PCB board with four mounting holes is an easy method for customers to fix modules on their applications. WEA128128A OLED module is built in with SSD1327 IC; it supports 4-wire SPI interface; optional I2C interface, 16 (4bits) gray scale, driving duty 1/128, supply voltage for logic is from 3.3V ~5V, the display with 50% Check board current is 160 mA @3.3VDD (typical value).
This OLED module is suitable for smart home application, medical device, smart control, meter, etc. WEA128128A module can be operating at temperatures from -40℃ to +80℃; its storage temperatures range from -40℃ to +85℃.
| Item | Dimension | Unit |
|---|---|---|
| Dot Matrix | 128 x 128 Dots | － |
| Module dimension | 34.2 x 45.5 x 3.16 | mm |
| Active Area | 26.86 x 26.86 | mm |
| Pixel Size | 0.185 x 0.185 | mm |
| Pixel Pitch | 0.210 x 0.210 | mm |
| Display Mode | Passive Matrix | |
| Display Color | Monochrome | |
| Drive Duty | 1/128 Duty | |
| Gray Scale | 4 bits | |
| IC | SSD1327 | |
| Interface | 4-Wire SPI option I2C | |
| Size | 1.5 inch | |
| Parameter | Symbol | Min | Max | Unit |
|---|---|---|---|---|
| Supply Voltage for Logic | 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 for Logic(3V/5V) | 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 | － | 160 | 320 | mA |
| No. | Symbol | Function |
|---|---|---|
| 1 | GND | This is a ground pin. |
| 2 | VCC | Power supply for panel driving voltage. This is also the most positive power voltage supply pin. It is supplied by external high voltage source. |
| 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: SDIN and D2 should be kept NC. |
| 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[7:0] will be interpreted as data. When the pin is pulled LOW, the data at D[7:0] 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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