Winstar OLED WEF012864H is made of 128×64 pixels, diagonal size 2.42 inch. This graphic display is built-in SSD1309 controller IC and it communicates via 6800/8080 8-bit parallel, I2C and 4-wire serial interface. WEF012864H is having the same OLED panel as existing WEO012864G and featured with a bezel (frame) on module. WEF012864H is using a low resistance OLED Panel, and the FPC pin assignment has been defined as the same as WEF012864Q (30 pins). WEF012864H is a COG structure OLED display; this OLED module is lightweight, low power and very thin, it is suitable for wall / meter devices, home applications, intelligent technology devices, energy systems, communication systems, medical instrument, etc. WEF012864H OLED module can be operating at temperatures from -40℃ to +80℃; its storage temperatures range from -40℃ to +85℃.
128×64, 2.42″ COG+FR OLED Display
Model No. WEF012864H
- Type: Graphic (With Frame)
- Structure: COG+FR
- Size: 2.42 inch
- 128×64 Dot Matrix
- IC：SSD1309
- 3V Power supply
- 1/64 duty
- Interface: 6800, 8080, SPI, I2C
- Display Color: White / Yellow / Sky Blue / Green
Description
Drawing
Drawing
Data source ref:WEF012864HWPP3N00F00
SPECIFICATIONS
SPECIFICATIONS
Interface Pin Function
| Pin No. | Symbol | Function |
|---|---|---|
| 1 | NC(Vss) | No connection (ground.) |
| 2 | VCC | Power supply for panel driving voltage. This is also the most positive power voltage supply pin. |
| 3 | VCOMH | COM signal deselected voltage level. A capacitor should be connected between this pin and VSS. |
| 4 | IREF | This pin is the segment output current reference pin. IREF is supplied externally. A resistor should be connected between this pin and VSS to maintain the current around 10uA. Please refer to Figure 8-15 for the details of resistor value |
| 5~12 | D7~D0 | These pins are bi-directional data bus connecting to the MCU data bus. Unused pins are recommended to tie LOW. 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. |
| 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 pin is read / write control input pin connecting to the MCU interface. When 6800 interface mode is selected, this pin will be used as Read/Write (R/W#) selection input. Read mode will be carried out when this pin is pulled HIGH 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. In I2C mode, this pin acts as SA0 for slave address selection. When 3-wire serial interface is selected, this pin must be connected to VSS. For detail relationship to MCU interface signals, refer to Timing Characteristics |
| 16 | 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. |
| 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.  Note (1) 0 is connected to VSS (2) 1 is connected to VDD |
| 20 | BS1 | |
| 21 | Vdd | Power supply pin for core logic operation |
| 22~28 | NC | No connection |
| 29 | Vss | Ground pin. It must be connected to external ground. |
| 30 | NC(Vss) | No connection (ground.) |
General Specification
General Specification
| Item | Dimension | Unit |
|---|---|---|
| Dot Matrix | 128 × 64 | dots |
| Module dimension | 77.2 × 42.14 ×3.4 | mm |
| Active Area | 55.01 × 27.49 | mm |
| Pixel Size | 0.40 × 0.40 | mm |
| Pixel Pitch | 0.43 × 0.43 | mm |
| Display Mode | Passive Matrix | |
| Display Color | Monochrome | |
| Drive Duty | 1/64 Duty | |
| IC | SSD1309 | |
| Interface | 6800,8080,SPI,I2C | |
| Size | 2.42 inch | |
Absolute Maximum Ratings
Electronical Characteristics
Electronical Characteristics
DC Electrical Characteristics
| Item | Symbol | Condition | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Supply Voltage for Logic | VDD | － | 2.8 | 3.0 | 3.3 | V |
| Supply Voltage for Display | VCC | － | 12.5 | 13.0 | 13.5 | V |
| High Level Input | VIH | － | 0.8×VDD | － | VDD | V |
| Low Level Input | VIL | － | 0 | － | 0.2×VDD | V |
| High Level Output | VOH | － | 0.9×VDD | － | VDD | V |
| Low Level Output | VOL | － | 0 | － | 0.1×VDD | V |
| 50% Check Board operating Current | VCC =13V | – | 29 | 43.5 | mA | |
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