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產品敘述
WEX025664B-CTP為一款3.12吋 COF 結構單色圖形 OLED 顯示模組，整合電容式觸控面板（CTP），解析度為256×64 dots。本模組採用SSD1322驅動IC，支援6800/8080 8-bit 並列介面及3/4 線 SPI 串列介面。模組外形尺寸為89.2 × 29.0 mm，顯示區域為76.778 × 19.178 mm。
本OLED模組支援4-bit 灰階顯示，操作電壓為3.0V（typ.），並採用1/64 duty 驅動方式。操作溫度範圍為-20°C 至 +70°C，儲存溫度範圍為-30°C 至 +80°C。內建觸控面板採用FT6336U控制器，支援I²C 介面與單點觸控。
WEX025664B-CTP適用於壁掛式設備、POS系統、IoT相關設備、手持式儀器、通訊設備及醫療設備等應用，同時也適合由傳統STN顯示升級至OLED的設計需求。
同系列OLED面板亦提供不同結構選項：
- WEX025664B：無金屬框與PCB版本
- WEN025664B：含金屬框與PCB版本
- WEN025664B-CTP：含金屬框、PCB及CTP觸控版本
規格圖
Data source ref: WEX025664BWPP3D00000
產品規格
規格說明
| 項目 | 尺寸 | 單位 |
|---|---|---|
| 點陣 | 256 x 64 Dots | － |
| 模組尺寸 | 89.2 × 29.0 × 3.17 | mm |
| 有效區域 | 76.778×19.178 | mm |
| 點大小 | 0.278×0.278 | mm |
| 點間距 | 0.3×0.3 | mm |
| 顯示模式 | 被動矩陣 | |
| 發光顏色 | 單色 | |
| 驅動方式 | 1/64 Duty | |
| 灰階 | 4 bits | |
| OLED IC | SSD1322 (COF) | |
| OLED 介面 | 6800, 8080, SPI | |
| 尺寸(對角線) | 3.12 吋 | |
| CTP IC | FT6336U | |
| 支援手指數 | 1 | |
| CTP 介面 | I2C | |
| 表面 | 亮面 | |
最大絕對額定值
最大絕對額定值
| 參數 | 符號 | 最小值 | 最大值 | 單位 |
|---|---|---|---|---|
| 工作電源電壓 | VCI | -0.3 | 4 | V |
| 邏輯電源電壓 | VDD | -0.5 | 2.75 | V |
| I/O pin 供電電壓 | VDDIO | -0.5 | VCI | V |
| 顯示電源電壓 | VCC | -0.5 | 20 | V |
| 工作溫度 | TOP | -20 | +70 | °C |
| 儲存溫度 | TSTG | -30 | +80 | °C |
觸控面板控制器 FT6336U
| 參數 | 符號 | 最小值 | 最大值 | 單位 |
|---|---|---|---|---|
| 電源電壓 | VDD | -0.3 | 3.6 | V |
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 |
|---|---|---|---|---|---|---|
| 工作電源電壓 | VCI | Note | 2.8 | 3.0 | 3.3 | V |
| 顯示電源電壓 | VCC | － | 14 | 14.5 | 15 | V |
| 邏輯電源電壓 | VDD | － | 2.4 | － | 2.6 | V |
| I/O Pin 電源 | VDDIO | － | 1.65 | VCI | V | |
| 輸入高準位 | VIH | － | 0.8×VDDIO | － | VDDIO | V |
| 輸入低準位 | VIL | － | 0 | － | 0.2×VDDIO | V |
| 輸出高準位 | VOH | － | 0.9×VDDIO | － | VDDIO | V |
| 輸出低準位 | VOL | － | 0 | － | 0.1×VDDIO | V |
| 50%顯示畫面耗電流 | VCC =14.5V | － | 32 | 48 | mA | |
觸控面板控制器 FT6336U
| 項目 | 符號 | 條件 | 最小值 | 典型值 | 最大值 | 單位 |
|---|---|---|---|---|---|---|
| 電源電壓 | VDD | 2.8 | 3.0 | 3.3 | V | |
| 輸入高準位 | VIH | 0.7xVDD | － | VDD | V | |
| 輸入低準位 | VIL | -0.3 | － | 0.3xVDD | V | |
| 輸出高準位 | VOH | IOH = -0.1mA | 0.7xVDD | － | － | V |
| 輸出低準位 | VOL | IOH = 0.1mA | － | － | 0.3xVDD | V |
Pin功能定義
| No. | 符號 | 功能說明 | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | N.C. | Reserved Pin The N.C. pin between function pins are reserved for compatible and flexible design. |
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| 2 | VSS | Ground. | ||||||||||
| 3 | VCC | Power supply for panel driving voltage. This is also the most positive power voltage supply pin. |
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| 4 | VCOMH | COM signal deselected voltage level. A capacitor should be connected between this pin and VSS. |
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| 5 | VLSS | Analog system ground pin. | ||||||||||
| 6~13 | D7~D0 | 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, D1 will be the serial data input SDIN and D0 will be the serial clock input SCLK. |
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| 14 | E/RD# | 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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| 15 | R/W# | 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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| 16 | BS0 | 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 VDDIO |
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| 17 | BS1 | |||||||||||
| 18 | D/C# | 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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| 19 | CS# | 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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| 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 | This pin is No Connection pins. Nothing should be connected to this pin. This pin should be left open individually. | ||||||||||
| 22 | IREF | Current Reference for Brightness Adjustment This pin is segment current reference pin. A resistor should be connected between this pin and VSS. Set the current lower than 10uA. |
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| 23 | N.C. | Reserved Pin The N.C. pin between function pins are reserved for compatible and flexible design. |
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| 24 | VDDIO | Power Supply for I/O Pin It should be matched with the MCU interface voltage level. |
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| 25 | VDD | 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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| 26 | VCI | Power Supply for Operation VCI must always be equal to or higher than VDD and VDDIO. |
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| 27 | VSL | Voltage Output Low Level for SEG Signal This is segment voltage reference pin. When external VSL is not used, this pin should be left open. When external VSL is used, this pin should connect with resistor and diode to ground. |
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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 OLED Panel These are the most positive voltage supply pin of the chip. They must be connected to external source. |
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| 30 | N.C. | Reserved Pin The N.C. pin between function pins are reserved for compatible and flexible design. |
CTP 功能定義
| 1 | GND | Ground |
| 2 | VDD | Power Supply Voltage of CTP |
| 3 | INT | External interrupt to the host |
| 4 | SDA | I2C data input and output |
| 5 | SCL | I2C clock input |
| 6 | RST | External Reset, Low is active |
| 7-10 | GND | Ground. |