产品叙述
WEA128128A模块是WEO128128A衍生产品，WEA128128A在模块上有搭配PCB板，显示画面由128x128像素组成，对角线尺寸为1.5吋。 这种有4个锁孔设计的PCB板，可让客户固定应用产品与模块时更加方便。 WEA128128A OLED模块内建SSD1327 IC并支持4线SPI接口；可选I2C接口。模块支持灰阶16 (4bits) 驱动方式为1/128，逻辑电源电压为3.3V~5V，50%显示画面耗电流为160 mA 工作电压为3.3V(Typical值)。
此OLED模块非常适合运用在智能家电、医疗设备、智能检测、仪表板等等。WEA128128A模块工作温度为-40℃至+80℃；储存温度为-40℃至+85℃。
规格图
Data source ref: WEA128128AWAP3N00000
产品规格
Pin功能定义
| No. | 符号 | 功能说明 |
|---|---|---|
| 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). |
规格说明
| 项目 | 尺寸 | 单位 |
|---|---|---|
| 点阵 | 128 x 128 Dots | － |
| 模块尺寸 | 34.2 x 45.5 x 3.16 | mm |
| 有效区域 | 26.86 x 26.86 | mm |
| 像素大小 | 0.185 x 0.185 | mm |
| 像素间距 | 0.210 x 0.210 | mm |
| 显示模式 | 被动矩阵 | |
| 发光颜色 | 单色 | |
| 驱动方式 | 1/128 Duty | |
| 灰阶 | 4 bits | |
| IC | SSD1327 | |
| 接口 | 4线 SPI / 可选I2C | |
| 尺寸 | 1.5 寸 | |
最大绝对额定
| 参数 | 符号 | 最小值 | 最大值 | 单位 |
|---|---|---|---|---|
| 逻辑电源电压 | VCC | 1.65 | 5.5 | V |
| 工作温度 | TOP | -40 | +80 | °C |
| 储存温度 | TSTG | -40 | +85 | °C |
电气特性
| 项目 | 符号 | 条件 | 最小值 | 典型值 | 最大值 | 单位 |
|---|---|---|---|---|---|---|
| 逻辑电源电压(3V/5V) | VCC | － | 2.8 | 3.3 | 5.2 | V |
| 输入高准位 | VIH | － | 0.8×VCC | － | VCC | V |
| 输入低准位 | VIL | － | 0 | － | 0.2×VCC | V |
| 输出高准位 | VOH | － | 0.9×VCC | － | VCC | V |
| 输出低准位 | VOL | － | 0 | － | 0.1×VCC | V |
| 50%显示画面耗电流 | ICC | VCC=3.3V | － | 160 | 320 | mA |
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