产品叙述
WEO012832K为2寸COG 带Hot Bar FPC结构的绘图型被动式OLED显示器模块，面板分辨率128x32 pixels。 WEO012832K模块内置SSD1315 IC，支持 6800/8080 8-bit 并行接口，I2C与4-线SPI接口，3V电压驱动，1/32 duty。此型号OLED模块可支持内部升压及外部供电。
WEO012832K与因为TAB IC EOL的WEX012832A产品AA区尺寸相同、PIN脚兼容、客户硬件不需修改，仅需修改Initial code，WEO012832K可视为WEX012832A替代方案。 WEO012832K是COG结构的OLED，无需背光非常轻薄 ，非常适用智能控制、工控仪器显示器、智能家电、智能医疗等产品。此模块的工作温度是-40℃至 80℃，储存温度-40℃至 85℃。
规格图
产品规格
Pin功能定义
| No. | 符号 | 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 |
规格说明
| 项目 | 规格 | 单位 |
|---|---|---|
| 分辨率 | 128 x 32 | Dots |
| 模块尺寸 | 59.0 × 18.86 × 1.41 | mm |
| 有效区域 | 50.535 × 10.695 | mm |
| 像素大小 | 0.370 × 0.310 | mm |
| 像素间距 | 0.395 × 0.335 | mm |
| 显示模式 | 被动矩阵 | |
| 显示颜色 | 单色 | |
| 接口 | 8Bits 6800 8080/ 4-Wire SPI/ I2C | |
| 驱动方式 | 1/32 Duty | |
| IC | SSD1315 | |
| 尺寸 | 2寸 | |
最大绝对额定值
Unless otherwise specified, VSS= 0 ( Ta = 25°C)| 参数 | 符号 | 最小值 | 典型值 | 最大值 | 单位 |
|---|---|---|---|---|---|
| 逻辑电源电压 | VDD | -0.3 | - | 4 | V |
| 显示电源电压 | VCC | 0 | - | 18 | 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 | 最小值 | 典型值 | 最大值 | 单位 | |
|---|---|---|---|---|---|---|
| 电源电压 | Logic | VDD | 2.8 | 3.0 | 3.3 | V |
| Operating | VCC | 7.5 | 8.0 | 8.5 | V | |
| 输入电压 | High Voltage | VIH | 0.8 x VDD | - | VDD | V |
| Low Voltage | VIL | 0 | - | 0.2 x VDD | V | |
| 输出电压 | High Voltage | VOH | 0.9x VDD | - | VDD | V |
| Low Voltage | VOL | 0 | - | 0.1 x VDD | V | |
| 符号 | 参数 | 最小值 | 典型值 | Max | 单位 | 条件 |
|---|---|---|---|---|---|---|
| ICC | VCC Supply Current | - | 11 | 22 | mA | VDD=3V , VCC=8.0, Display 50% ON |
