产品叙述
WEO128128G为1.12寸COG 带Hot Bar FPC结构的绘图型被动式OLED显示器模块，显示画面由128x128像素组成。此模块内建SH1107控制器IC可支持I2C、4线SPI、6800和8080并列接口。电源电压典型值为 3V，显示器电源电压典型值为12V，50%显示画面耗电流为15mA @ VCC 12V (白色)，驱动方式为1/128 duty。
WEO128128G COG OLED模块体积小、低功耗、轻薄，非常适合智能电表、智能家电、POS系统、云端/物联网系统、手持式产品、智能设备、能源系统、车载与通讯设备以及医疗仪器等。WEO0128128G模块工作温度为-40℃至+ 80℃，储存温度为-40℃至+85℃。
规格图
Data source ref:WEO128128GWAP3N00000
产品规格
Pin功能定义
| No. | 符号 | 功能说明 | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | VPP | This is the most positive voltage supply pad of the chip. It should be supplied externally. |
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| 2 | VCOMH | This is a pad for the voltage output high level for common signals. A capacitor should be connected between this pad and VSS. |
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| 3 | VDD | Power supply for logic and input. | |||||||||||||||
| 4 | NC | Not connected. | |||||||||||||||
| 5 | IM1 | These are the MPU interface mode select pads.
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| 6 | IM2 | ||||||||||||||||
| 7 | IREF | This is a segment current reference pad. A resistor should be connected between this pad and VSS. Set the current at 15.625mA. | |||||||||||||||
| 8 | CS | This pad is the chip select input. When CS = “L”, then the chip select becomes active, and data/command I/O is enabled. | |||||||||||||||
| 9 | RES | This is a reset signal input pad. When RES is set to “L”, the settings are initialized. The reset operation is performed by the RES signal level. | |||||||||||||||
| 10 | A0 | This is the Data/Command control pad that determines whether the data bits are data or a command. A0 = “H”: the inputs at D0 to D7 are treated as display data. A0 = “L”: the inputs at D0 to D7 are transferred to the command registers. In I2C interface, this pad serves as SA0 to distinguish the different address of OLED driver. |
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| 11 | WR | This is a MPU interface input pad. When connected to an 8080 MPU, this is active LOW. This pad connects to the 8080 MPU WR signal. The signals on the data bus are latched at the rising edge of the WR signal. When connected to a 6800 Series MPU: This is the read/write control signal input terminal. When WR = “H”: Read. When WR = “L”: Write. |
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| 12 | E/RD | This is a MPU interface input pad. When connected to an 8080 series MPU, it is active LOW. This pad is connected to the RD signal of the 8080 series MPU, and the data bus is in an output status when this signal is “L”. When connected to a 6800 series MPU, this is active HIGH. This is used as an enable clock input of the 6800 series MPU. |
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| 13~20 | D0~D7 | This is an 8-bit bi-directional data bus that connects to an 8-bit or 16-bit standard MPU data bus. When the serial interface is selected, then D0 serves as the serial clock input pad (SCL) and D1serves as the serial data input pad (SI). At this time, D2 to D7 are set to high impedance. When the I2C interface is selected, then D0 serves as the serial clock input pad (SCL) and D1 serves as the serial data input pad (SDA). At this time, D2 to D7 are set to high impedance. |
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| 21 | GND | Ground | |||||||||||||||
| 22 | NC | Not connected. |
规格说明
| 项目 | 规格说明 | 单位 |
|---|---|---|
| 点阵(分辨率) | 128 × 128 | － |
| 模块尺寸 | 25.9 x 30.1 x 1.26 | mm |
| 有效区域 | 20.076 x 20.076 | mm |
| 像素大小 | 0.137 x 0.137 | mm |
| 像素间距 | 0.157 x 0.157 | mm |
| 显示模式 | Passive Matrix 被动矩阵 | |
| 显示颜色 | 单色 | |
| 驱动方式 | 1/128 Duty | |
| IC | SH1107 | |
| 接口 | 6800,8080,4-wire SPI,I2C | |
| 尺寸 | 1.12 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 | 3.6 | V |
| 显示电源电压 | VPP | -0.3 | 17.0 | 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 | － | 1.65 | 3.0 | 3.3 | V |
| 显示电源电压 | VPP | － | 7.0 | 12.0 | 12.5 | V |
| 输入高电压 | VIH | － | 0.8×VDD | － | VDD | V |
| 输入低电压 | VIL | － | 0 | － | 0.2×VDD | V |
| 输出高电压 | VOH | － | 0.8×VDD | － | VDD | V |
| 输出低电压 | VOL | － | 0 | － | 0.2×VDD | V |
| 50% Check Board operating Current | IPP | VPP=12V | － | 15.0 | 25.0 | mA |
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