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產品敘述
WEO012832K為2吋COG 帶Hot Bar FPC結構的繪圖型被動式OLED顯示器模組，面板解析度128x32 pixels。 WEO012832K模組內建SSD1315 IC，支援 6800/8080 8-bit 平行介面，I2C與4-線SPI介面，3V電壓驅動，1/32 duty。此型號OLED模組可支援內部升壓及外部供電。
WEO012832K與因為TAB IC EOL的WEX012832A產品AA區尺寸相同、PIN腳相容、客戶硬體不需修改，僅需修改Initial code，WEO012832K可視為WEX012832A替代方案。 WEO012832K是COG結構的OLED，無需背光非常輕薄 ，非常適用智能控制、工控儀器顯示器、智能家電、智能醫療等產品。此模組的工作溫度是-40℃至 80℃，儲存溫度-40℃至 85℃。
規格圖
產品規格
Pin功能定義
| No. | 符號 | 功能 |
|---|---|---|
| 1 | NC | No connection |
| 2 | VCC | Power supply for panel driving voltage. This is also the most positive power voltage supply pin. When charge pump is enabled, a capacitor should be connected between this pin and VSS. |
| 3 | VCOMH | COM signal deselected voltage level. A capacitor should be connected between this pin and VSS. |
| 4 | IREF | This is segment output current reference pin. When external IREF is used, a resistor should be connected between this pin and VSS to maintain the IREF current at 30uA. |
| 5 | D7 | These are 8-bit bi-directional data bus to be connected to the microprocessor’s data bus. When serial interface mode is selected, D0 will be the serial clock input: SCLK; D1 will be the serial data input: SDIN. 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. |
| 6 | D6 | |
| 7 | D5 | |
| 8 | D4 | |
| 9 | D3 | |
| 10 | D2 | |
| 11 | D1 | |
| 12 | D0 | |
| 13 | E/RD# | This pin is MCU interface input. When 6800 interface mode is selected, this pin will be used as the Enable (E) signal. Read/write operation is initiated when this pin is pulled HIGH and the chip is selected. When 8080 interface mode is selected, this pin receives the Read (RD#) signal. Read operation is initiated when this pin is pulled LOW and the chip is selected. When serial or I2C interface is selected, this pin must be connected to VSS. |
| 14 | R/W# | This is read / write control input pin connecting to the MCU interface. When interfacing to a 6800-series microprocessor, this pin will be used as Read/Write (R/W#) selection input. Read mode will be carried out when this pin is pulled HIGH (i.e. connect to VDD) and write mode when LOW. When 8080 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 chip is selected. When serial or I2C interface is selected, this pin must be connected to VSS. |
| 15 | D/C# | This pin is Data/Command control pin connecting to the MCU. When the pin is pulled HIGH, the data at D[7:0] will be interpreted as data. When the pin is pulled LOW, the data at D[7:0] will be transferred to a command register. |
| 16 | RES# | This pin is reset signal input. When the pin is pulled LOW, initialization of the chip is executed. Keep this pin HIGH (i.e. connect to VDD) during normal operation. |
| 17 | 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). |
| 18 | NC | No connection |
| 19 | BS2 | MCU bus interface selection pins. Select appropriate logic setting as described in the following table. BS2, BS1 are pin select Note (1) 0 is connected to VSS (2) 1 is connected to VDD |
| 20 | BS1 | |
| 21 | VDD | Power supply pin for core logic operation. This is a voltage supply pin. It must be connected to external source. |
| 22~29 | NC | No connection |
| 30 | VSS | Ground pin. It must be connected to external ground. |
| 31 | NC | No connection |
規格說明
| 項目 | 規格 | 單位 |
|---|---|---|
| 解析度 | 128 x 32 | Dots |
| 模組尺寸 | 59.0 × 18.86 × 1.41 | mm |
| 有效區域 | 50.535 × 10.695 | mm |
| 像素大小 | 0.370 × 0.310 | mm |
| 像素間距 | 0.395 × 0.335 | mm |
| 顯示模式 | 被動矩陣 | |
| 顯示顏色 | 單色 | |
| 介面 | 8Bits 6800 8080/ 4-Wire SPI/ I2C | |
| 驅動方式 | 1/32 Duty | |
| IC | SSD1315 | |
| 尺寸 | 2吋 | |
最大絕對額定值
Unless otherwise specified, VSS= 0 ( Ta = 25°C)| 參數 | 符號 | 最小值 | 典型值 | 最大值 | 單位 |
|---|---|---|---|---|---|
| 邏輯電源電壓 | VDD | -0.3 | - | 4 | V |
| 顯示電源電壓 | VCC | 0 | - | 18 | V |
| 工作溫度 | TOP | -40 | - | +80 | °C |
| 儲存溫度 | TSTG | -40 | - | +85 | °C |
電氣特性
| 項目 | 符號 | 最小值 | 典型值 | 最大值 | 單位 | |
|---|---|---|---|---|---|---|
| 電源電壓 | Logic | VDD | 2.8 | 3.0 | 3.3 | V |
| Operating | VCC | 7.5 | 8.0 | 8.5 | V | |
| 輸入電壓 | High Voltage | VIH | 0.8 x VDD | - | VDD | V |
| Low Voltage | VIL | 0 | - | 0.2 x VDD | V | |
| 輸出電壓 | High Voltage | VOH | 0.9x VDD | - | VDD | V |
| Low Voltage | VOL | 0 | - | 0.1 x VDD | V | |
| 符號 | 參數 | 最小值 | 典型值 | Max | 單位 | 條件 |
|---|---|---|---|---|---|---|
| ICC | VCC Supply Current | - | 11 | 22 | mA | VDD=3V , VCC=8.0, Display 50% ON |