產品敘述
WEO128128D-CTP是一款圓形直徑1.18吋繪圖形OLED顯示器，解析度為128x128 dots搭配電容觸控面板。此模組內建SSD1327 IC，支援4線SPI和I2C介面，邏輯電壓為3V (typical)，驅動方式1/128 duty。WEO128128D-CTP模組內建IT7259觸控面板IC使用I2C介面，電容式觸控面板支援1指觸控。
這款搭配CTP觸控面板的圓形OLED非常適合用於智能家居 / 家電應用、能源系統、通信系統、醫療儀器等。模組可在-20℃至+50℃溫度下工作； 儲存溫度為-30℃至+70℃。
規格圖
產品規格
Pin功能定義
| No. | 符號 | 功能說明 | ||||||
|---|---|---|---|---|---|---|---|---|
| 1 | VSS | Ground pin. It must be connected to external ground. | ||||||
| 2 | VCC | Power supply for panel driving voltage. This is also the most positive power voltage supply pin. It is supplied by external high voltage source. | ||||||
| 3 | VCOMH | COM signal deselected voltage level. A capacitor should be connected between this pin and VSS. No external power supply is allowed to connect to this pin. |
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| 4 | VCI | Low voltage power supply and power supply for interface logic level. It should match with the MCU interface voltage level and must be connected to external source. VCI must always set to be equivalent to or higher than VDD. |
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| 5 | VDD | Power supply pin for core logic operation. | ||||||
| 6 | BS1 | MCU bus interface selection pins. Select appropriate logic setting as described in the following table. BS1 is pin select. Bus Interface selection
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| 7 | IREF | This pin is the segment output current reference pin | ||||||
| 8 | CS# | This pin is the chip select input connecting to the MCU. The chip is enabled for MCU communication only when CS# is pulled LOW (active LOW). |
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| 9 | 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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| 10 | DC# | This pin is Data/Command control pin connecting to the MCU. When the pin is pulled HIGH, will be interpreted as data. When the pin is pulled LOW, will be transferred to a command register In I2C mode, this pin acts as SA0 for slave address selection. |
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| 11 | D0 | 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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| 12 | D1 | |||||||
| 13 | D2 | |||||||
| 14 | TP_SCK | I2C clock signal | ||||||
| 15 | TP_SDA | I2C data signal | ||||||
| 16 | TP_INT | Interrupt signal | ||||||
| 17 | VCC | Power supply for panel driving voltage. This is also the most positive power voltage supply pin. | ||||||
| 18 | VSS | Ground |
規格說明
| 項目 | 尺寸 | 單位 |
|---|---|---|
| 點陣(解析度) | 128 x 128 | Dots |
| 模組尺寸 | Ø50.5 × 5.0 | mm |
| 檢視區域 | Ø30.0 | mm |
| 點大小 | 0.210 × 0.210 | mm |
| 點間距 | 0.235 × 0.235 | mm |
| 顯示模式 | 被動矩陣 | |
| 發光顏色 | 單色 | |
| 驅動方式 | 1/128 Duty | |
| 灰階 | 4 bits | |
| IC | SSD1327 | |
| 介面 | 4線SPI , I2C | |
| 尺寸 | 1.18吋 | |
| PCAP IC | IT7259 |
| Detect Point | 1 |
| PCAP 介面 | I2C |
| PCAP 表面硬度 | 6H |
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 | 4.0 | V |
| 邏輯電源電壓 | VDD | -0.5 | 2.75 | V |
| 顯示電源電壓 | VCC | -0.5 | 19.0 | V |
| 工作溫度 | TOP | -20 | +50 | °C |
| 儲存溫度 | TSTG | -30 | +70 | °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 | VCI | － | 2.8 | 3.0 | 3.3 | V |
| 顯示電源電壓 | VCC | － | 14.0 | 14.5 | 15.0 | V |
| 輸入高準位 | VIH | － | 0.8×VCI | － | VCI | V |
| 輸入低準位 | VIL | － | 0 | － | 0.2×VCI | V |
| 輸出高準位 | VOH | Iout = 100uA | 0.9×VCI | － | VCI | V |
| 輸出低準位 | VOL | Iout = 100uA | 0 | － | 0.1×VCI | V |
| 50%顯示畫面耗電流 | VCC =14.5V | － | 24 | 36 | mA | |
觸控面板控制器 IT7259
| 項目 | 符號 | 條件 | 最小值 | 典型值 | 最大值 | 單位 |
|---|---|---|---|---|---|---|
| 輸入高準位 | VIH | COMS | 1.2 | － | － | V |
| 輸入低準位 | VIL | COMS | － | － | 0.5 | V |
| 輸出高準位 | VOH | IOH = 2mA | 2.4 | － | － | V |
| 輸出低準位 | VOL | IOL = 2mA | － | － | 0.4 | V |
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