产品叙述
WEO012864U为OLED热门尺寸2.7寸 COG 结构的绘图型OLED显示器模块，分辨率为128x64 dots。 WEO012864U模块内建SSD1357 IC，模块支持 6800/8080 8-bit 并列接口，I2C与4线SPI接口，3V电压驱动，1/64 duty，具有高对比度度10,000:1可支持4-bit 灰阶。
WEO012864U模块的工作温度是-40℃至80℃，储存温度-40℃至 85℃。COG结构的OLED，无需背光非常轻薄 ，非常适用量测仪器、智能控制、智能家电、POS系统、智能医疗设备、IoT物联网系统等产品。
相同的 OLED 面板还有 WEF012864U 系列(含铁框不含PCB)和 WEP012864U 系列(同时具备金属铁框和PCB)。如果客户需要CTP触控功能，请选择 WEP012864U-CTP 系列。
规格图
Data source ref:WEO012864UWPP3N00000
产品规格
Pin功能定义
| No. | 符号 | 功能 | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | NC(GND) | No connection. | |||||||||||||||
| 2 | VSS | Ground of Logic Circuit. This is a ground pin. It also acts as a reference for the logic pins. It must be connected to external ground. |
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| 3 | VCC | Power supply for panel driving voltage. This is also the most positive power voltage supply pin. | |||||||||||||||
| 4 | VCOMH | Voltage Output High Level for COM Signal. This pin is the input pin for the voltage output high level for COM signals. A tantalum capacitor should be connected between this pin and VSS. |
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| 5 | VLSS | Ground of Analog Circuit These are the analog ground pins. They should be connected to VSS externally. |
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| 6~13 | 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. |
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| 14 | 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. |
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| 15 | 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. |
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| 16 17 |
BS1 BS2 |
Communicating Protocol Select. These pins are MCU interface selection input. See the following table:
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| 18 | 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. |
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| 19 | CS# | Chip Select This pin is the chip select input. The chip is enabled for MCU communication only when CS# is pulled low. |
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| 20 | 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. |
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| 21 | FR | Frame Frequency Triggering Signal This pin will send out a signal that could be used to identify the driver status. Nothing should be connected to this pin. It should be left open individually. |
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| 22 | IREF | This pin is the segment output current reference pin. IREF is supplied externally. |
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| 23 | N.C. | Reserved Pin The N.C. pin between function pins is reserved for compatible and flexible design. |
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| 24 | VDD | Power Supply for I/O Pin. This pin is a power supply pin of I/O buffer. It should be connected to VCI or external source. All I/O signal should have VIH reference to VDDIO. When I/O signal pins (BS0~BS1, D0~D7, control signals…) pull high, they should be connected to VDDIO. |
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| 25 | VP | Power Supply for Core Logic Circuit This is a voltage supply pin. It can be supplied externally (within the range of 2.4~2.6V) or regulated internally from VCI. A capacitor should be connected between this pin & VSS under all circumstances. |
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| 26 | VDD | Power Supply for Operation. This is a voltage supply pin. It must be connected to external source & always be equal to or higher than VDD & VDDIO. |
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| 27 | VSL | Voltage Output Low Level for SEG Signal This is segment voltage (output low level) reference pin. This pin has to connect with resistor and diode to ground (details depends on application). |
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| 28 | VLSS | Ground of Analog Circuit These are the analog ground pins. They should be connected to VSS externally. |
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| 29 | VCC | Power Supply for OEL Panel These are the most positive voltage supply pin of the chip. They must be connected to external source. |
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| 30 | NC(GND) | No connection |
规格说明
| 项目 | 规格 | 单位 |
|---|---|---|
| 分辨率 | 128 x 64 | Dots |
| 模块尺寸 | 73.0 × 41.86 × 2.01 | mm |
| 有效区域 | 61.41 × 30.69 | mm |
| 像素大小 | 0.45 × 0.45 | mm |
| 像素间距 | 0.48 × 0.48 | mm |
| 显示模式 | 被动矩阵 | |
| 显示颜色 | 单色 | |
| 驱动方式 | 1/64 Duty | |
| IC | SSD1357 | |
| 接口 | 6800, 8080, SPI, I2C | |
| 尺寸 | 2.7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 | 4.0 | V |
| 显示电源电压 | VCC | 0 | 15.0 | 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 | VDD | － | 2.8 | 3.0 | 3.3 | V |
| 显示电源电压 | VCC | － | 9.5 | 10.0 | 10.5 | V |
| 输入高电压 | VIH | － | 0.8×VDD | － | － | V |
| 输入低电压 | VIL | － | － | － | 0.2×VDD | V |
| 输出高电压 | VOH | － | 0.9×VDD | － | － | V |
| 输出低电压 | VOL | － | － | － | 0.1×VDD | V |
| 50% Check Board operating Current | VCC =10.0V | － | 46 | 69 | mA | |
