Home Products OLED Module Graphic OLED Display WEF012864Q

2.7", 128x64 COG+FR OLED Display

Model No. WEF012864Q

►Type: Graphic (With Frame)
►Structure: COG+FR
►Size: 2.7 inch
►128 x 64 Dot Matrix
►Display Color: Monochrome
►Built-in controller SSD1309ZC
►3V Power supply
►1/64 duty
►Interface: 6800, 8080, SPI, I2C
►Display Color: White / Yellow / Sky Blue

DESCRIPTION

Winstar OLED Display WEF012864Q is made of 128x64 pixels, diagonal size 2.7 inch. This graphic display is built-in SSD1309ZC controller IC and it communicates via 6800/8080 8-bit parallel, I2C and 4-wire serial interface. WEF012864Q is having the module dimension of 89.7 x 47.2 mm and AA size of 61.41 x 30.69 mm; it has the same OLED panel as existing WEO012864K with a bezel (frame) on module, it's FPC pin assignment has been defined as the same as WEX012864L (30 pins). WEF012864Q model is a COG OLED; it can be regards as an alternative of TAB type WEX012864L. 

WEF012864Q 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, POS system, Cloud/IoT system, intelligent technology devices, energy systems, communication systems, medical instrument, etc. WEF012864Q OLED module can be operating at temperatures from -40℃ to +80℃; its storage temperatures range from -40℃ to +80℃.

DRAWING

2.7", 128x64 COG OLED Display - Winstar Display

SPECIFICATIONS

Interface Pin Function

No. Symbol Function
1 NC  No connection
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.
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.
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. BS2, BS1 and BS0 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
22~28 NC No connection
29 VSS Ground.
30 NC No connection

Mechanical Data

Item Dimension Unit
Dot Matrix 128 × 64 dots
Module dimension 89.7 × 47.2 × 3.4 mm
Active Area 61.41 × 30.69 mm
Pixel Size 0.45 × 0.45 mm
Pixel Pitch 0.48 × 0.48 mm
Display Mode Passive Matrix
Display Color Monochrome
Drive Duty 1/64 Duty
IC SSD1309
Interface I2C, 4-Wire SPI ,6800, 8080
Size 2.7 inch

Electronical 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 13.5 V
High Level Input VIH 0.8×VDD V
Low Level Input VIL 0.2×VDD V
High Level Output VOH 0.9×VDD V
Low Level Output VOL 0.1×VDD V
50% Check Board operating Current VCC =13.0V 20 22 24 mA

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