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产品叙述
WEN025664B 是一款 3.12 英寸图形 COF OLED 显示模块，分辨率为 256×64 dots。该模块搭载 SSD1322 驱动 IC，支持 6800/8080 8-bit 并行接口及 3-/4-wire SPI 接口。模块外形尺寸为 89.2 × 44.0 mm，有效显示区域为 76.78 × 19.18 mm。
该模块支持 4-bit 灰阶显示，逻辑电压为 3V，采用 1/64 duty 驱动方式。典型工作电流为 150 mA @ 3.0V VDD（50% checkerboard）。对比度为 10,000:1。工作温度范围为 -40°C ~ +80°C，存储温度范围为 -40°C ~ +85°C。
该模块包含 PCB、金属框及四个安装孔，用于结构安装。PCB 已集成 VCC 电路及接口配置。
应用范围：智能家居设备、医疗设备、工业控制系统，以及需要紧凑型单色 OLED 显示的各类设备。
根据结构设计及触控需求，可选以下相关型号：
- WEX025664B：COF 结构（不含金属框和 PCB）
- WEX025664B-CTP：COF 结构（不含金属框和 PCB，带 CTP）
- WEN025664B-CTP：COF 结构（带金属框、PCB 及 CTP）
规格图
Data source ref: WEN025664BWAP3N0000
产品规格
规格说明
| 项目 | 尺寸 | 单位 |
|---|---|---|
| 点阵 | 256 x 64 Dots | － |
| 模块尺寸 | 89.2 × 44.0 × 3.3 Max. | mm |
| 有效区域 | 76.78 × 19.18 | mm |
| 像素大小 | 0.278 × 0.278 | mm |
| 像素间距 | 0.3×0.3 | mm |
| 显示模式 | 被动矩阵 | |
| 发光颜色 | 单色 | |
| 驱动方式 | 1/64 Duty | |
| 灰阶 | 4 bits | |
| IC | SSD1322 (COF) | |
| 接口 | 6800, 8080, SPI | |
| 尺寸 | 3.12 寸 | |
最大绝对额定
| 参数 | 符号 | 最小值 | 最大值 | 单位 |
|---|---|---|---|---|
| 显示电源电压 | VDD | -0.3 | 4 | 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 |
| 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 | IDD | VCC =3V | － | 150 | 300 | mA |
Pin功能定义
| Pin Number |
符号 | I/O | 功能说明 | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | VSS | P | Ground. | ||||||||||
| 2 | VDD | P | Power Supply for Core Logic Circuit Power supply pin for core logic operation. A capacitor is required to connect between this pin and VSS |
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| 3 | N.C. | P | Reserved Pin The N.C. pin between function pins are reserved for compatible and flexible design. |
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| 4 | D/C# | I | Data/Command Control This pin is Data/Command control pin connecting to the MCU. When the pin is pulled HIGH, the content at D[7:0] will be interpreted as data. When the pin is pulled LOW, the content at D[7:0] will be interpreted as command. |
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| 5 | R/W# (WR#) |
I | Read/Write Select or Write This pin is MCU interface input. When interfacing to a 68XX-series microprocessor, this pin will be used as Read/Write (R/W#) selection input. Pull this pin to “High” for read mode and pull it to “Low” for write mode. When 80XX 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 CS# is pulled low. When serial mode is selected, this pin must be connected to VSS. |
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| 6 | E/RD# | I | Read/Write Enable or Read This pin is MCU interface input. When interfacing to a 68XX-series microprocessor, this pin will be used as the Enable (E) signal. Read/write operation is initiated when this pin is pulled high and the CS# is pulled low. When connecting to an 80XX-microprocessor, this pin receives the Read (RD#) signal. Data read operation is initiated when this pin is pulled low and CS# is pulled low. When serial mode is selected, this pin must be connected to VSS. |
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| 7~14 | DB0 | I/O | Host Data Input/Output Bus These pins are 8-bit bi-directional data bus to be connected to the microprocessor’s data bus. When serial mode is selected, DB1 will be the serial data input SDIN and DB0 will be the serial clock input SCLK. |
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| DB1 | |||||||||||||
| DB2 | |||||||||||||
| DB3 | |||||||||||||
| DB4 | |||||||||||||
| DB5 | |||||||||||||
| DB6 | |||||||||||||
| DB7 | |||||||||||||
| 15 | NC | P | Reserved Pin The N.C. pin between function pins are reserved for compatible and flexible design. |
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| 16 | RES# | I | 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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| 17 | CS# | I | Data/Command Control This pin is the chip select input connecting to the MCU. The chip is enabled for MCU communication only when CS# is pulled LOW. |
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18 |
NC | P | Reserved Pin The N.C. pin between function pins are reserved for compatible and flexible design. |
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| 19 | BS1 | I | Communicating Protocol Select These pins are MCU interface selection input. See the following table:
(1) 0 is connected to VSS (2) 1 is connected to VDD |
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| 20 | BS0 | ||||||||||||
| 21~24 | NC | P | Reserved Pin The N.C. pin between function pins are reserved for compatible and flexible design. |