产品叙述
WEF012864H 是一款COG 绘图型2.42吋单色被动式PMOLED显示器模块，面板分辨率128x64 pixels。WEF012864H内建SSD1309 controller控制器IC, 支持多种传输接口: 6800 8-bite, 8080 8-bit 并行接口, I2C 与4线SPI串行接口，使用3V驱动。 WEF012864H模块使用与WEO012864G相同尺寸的OLED面板但增加铁框，方便客户固定机构，此款OLED采用低阻抗面板增加均匀度，FPC出pin与定义同WEF012864Q (30 pins)。
WEF012864H为COG结构的OLED显示器模块，为有机自发光，无须背光源，模块轻薄且低耗电流，WEF012864H模块非常适合手持式产品、量测仪器、家用产品、POS系统、物联网、通讯设备与医疗仪器等等。此模块的工作温度是-40℃至+80℃，储存温度-40℃至+85℃。
规格图
产品规格
Pin功能定义
| Pin No. | 符号 | 功能说明 |
|---|---|---|
| 1 | NC(Vss) | No connection (ground.) |
| 2 | VCC | Power supply for panel driving voltage. This is also the most positive power voltage supply pin. |
| 3 | VCOMH | COM signal deselected voltage level. A capacitor should be connected between this pin and VSS. |
| 4 | IREF | This pin is the segment output current reference pin. IREF is supplied externally. A resistor should be connected between this pin and VSS to maintain the current around 10uA. Please refer to Figure 8-15 for the details of resistor value |
| 5~12 | D7~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. When I2C mode is selected, D2, D1 should be tied together and serve as SDAout, SDAin in application and D0 is the serial clock input, SCL. |
| 13 | E/RD# | This pin is MCU interface input. When 6800 interface mode is selected, this pin will be used as the Enable (E) signal. Read/write operation is initiated when this pin is pulled HIGH and the chip is selected. When 8080 interface mode is selected, this pin receives the Read (RD#) signal. Read operation is initiated when this pin is pulled LOW and the chip is selected. When serial or I2C interface is selected, this pin must be connected to VSS. |
| 14 | R/W# | This pin is read / write control input pin connecting to the MCU interface. When 6800 interface mode is selected, this pin will be used as Read/Write (R/W#) selection input. Read mode will be carried out when this pin is pulled HIGH and write mode when LOW. When 8080 interface mode is selected, this pin will be the Write (WR#) input. Data write operation is initiated when this pin is pulled LOW and the chip is selected. When serial or I2C interface is selected, this pin must be connected to VSS. |
| 15 | 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. In I2C mode, this pin acts as SA0 for slave address selection. When 3-wire serial interface is selected, this pin must be connected to VSS. For detail relationship to MCU interface signals, refer to Timing Characteristics |
| 16 | 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. |
| 17 | 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). |
| 18 | NC | No connection |
| 19 | BS2 | MCU bus interface selection pins. Select appropriate logic setting as described in the following table.  Note (1) 0 is connected to VSS (2) 1 is connected to VDD |
| 20 | BS1 | |
| 21 | Vdd | Power supply pin for core logic operation |
| 22~28 | NC | No connection |
| 29 | Vss | Ground pin. It must be connected to external ground. |
| 30 | NC(Vss) | No connection (ground.) |
规格说明
| 项目 | 规格 | 单位 |
|---|---|---|
| 点阵(分辨率) | 128 × 64 | dots |
| 模块尺寸 | 77.2 × 42.14 ×3.4 | mm |
| 有效区域 | 55.01 × 27.49 | mm |
| 像素大小 | 0.40 × 0.40 | mm |
| 像素间距 | 0.43 × 0.43 | mm |
| 显示模式 | Passive Matrix被动矩阵 | |
| 发光颜色 | 单色 | |
| 驱动方式 | 1/64 Duty | |
| IC | SSD1309 | |
| 接口 | 6800,8080,SPI,I2C | |
| 尺寸(对角线) | 2.42寸 | |
最大绝对额定值
| 参数 | 符号 | 最小值 | 最大值 | 单位 |
|---|---|---|---|---|
| 逻辑电源电压 | VDD | -0.3 | 4 | V |
| 显示电源电压 | VCC | 0 | 15 | V |
| 工作温度 | TOP | -40 | +80 | °C |
| 储存温度 | TSTG | -40 | +85 | °C |
电气特性
DC 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 | VDD | － | 2.8 | 3.0 | 3.3 | V |
| 显示电源电压 | VCC | － | 12.5 | 13.0 | 13.5 | V |
| 输入高准位 | VIH | － | 0.8×VDD | － | VDD | V |
| 输入低准位 | VIL | － | 0 | － | 0.2×VDD | V |
| 输出高准位 | VOH | － | 0.9×VDD | － | VDD | V |
| 输出低准位 | VOL | － | 0 | － | 0.1×VDD | V |
| 50%显示画面耗电流 | VCC =13V | - | 29 | 43.5 | mA | |
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