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產品敘述
WEN025664A 系列為一款 2.8 吋單色繪圖型 COF OLED 顯示器模組，解析度為 256×64 dots。此模組搭載 SSD1322 驅動 IC，支援 6800/8080 8-bit 並列介面及3-/4-wire SPI介面。模組尺寸為 85.0 × 39.8 mm，有效顯示區為 69.1 × 17.26 mm。
此系列採用 3V 電源及 1/64 duty 驅動方式，支援灰階顯示，對比度可達 10,000:1。操作溫度範圍為 -40°C ~ +80°C。
此模組採用金屬框架與 PCB 設計，並提供四個固定孔，有利於機構安裝。PCB 已整合介面與電源（VDD）電路，可透過線材直接連接，無需額外開發 PCB。另提供電容式觸控版本：WEN025664A-CTP。
規格圖
Data source ref: WEN025664ALAP3N00000
產品規格
規格說明
| 項目 | 尺寸 | 單位 |
|---|---|---|
| 點陣 | 256 × 64 Dots | － |
| 模組尺寸 | 85.0 × 39.8 × 7.2 Max. | mm |
| 有效區域 | 69.1 × 17.26 | mm |
| 點大小 | 0.248 × 0.248 | mm |
| 點間距 | 0.27 × 0.27 | mm |
| 顯示模式 | 被動矩陣 | |
| 發光顏色 | 單色 | |
| 驅動方式 | 1/64 Duty | |
| OLED IC | SSD1322 (COF) | |
| OLED 介面 | 6800, 8080, SPI | |
| 尺寸(對角線) | 2.8 吋 | |
最大絕對額定值
| 參數 | 符號 | 最小值 | 最大值 | 單位 |
|---|---|---|---|---|
| 顯示電源電壓 | VDD | -0.3 | 4 | V |
| 工作溫度 | TOP | -40 | +80 | °C |
| 儲存溫度 | TSTG | -40 | +85 | °C |
電氣特性
DC 電氣特性
| 項目 | 符號 | 條件 | 最小值 | 典型值 | 最大值 | 單位 |
|---|---|---|---|---|---|---|
| 邏輯電源電壓 | VDD | － | 2.8 | 3.0 | 3.3 | V |
| 輸入高準位 | VIH | － | 0.8×VDD | － | VDD | V |
| 輸入低準位 | VIL | － | 0 | － | 0.2×VDD | V |
| 輸出高準位 | VOH | － | 0.9×VDD | － | VDD | V |
| 輸出低準位 | VOL | － | 0 | － | 0.1×VDD | V |
| 50%顯示畫面耗電流 | IDD | VDD =3V | － | 125 | 250 | mA |
Pin功能定義
| Pin Number | 符號 | I/O | 功能說明 | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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. |