2.7 inch COG Graphic 128x64 OLED supports Grayscale with PCB+FR - REP012864U
2.7 inch COG Graphic 128x64 OLED supports Grayscale with PCB+FR - REP012864U
2.7 inch COG Graphic 128x64 OLED supports Grayscale with PCB+FR - REP012864U
2.7 inch COG Graphic 128x64 OLED supports Grayscale with PCB+FR - REP012864U
2.7 inch COG Graphic 128x64 OLED supports Grayscale with PCB+FR - REP012864U

2.7 inch COG Graphic 128x64 OLED supports Grayscale with PCB+FR

Model No. REP012864U

REP012864U is a 2.7 inch monochrome COG graphic OLED module with a resolution of 128x64 dots. The module dimensions of the REP012864U are 82×47.5 mm, and the active area is 61.41x30.69 mm. Its built-in SSD1357 IC, supports grayscale, 6800/8080 8-bit parallel, I2C, and 4-Wire SPI interfaces, with a supply voltage for logic at 3V and a 1/64 duty cycle. The available emitting colors are white and yellow.

The additional PCB on this OLED display helps users save time on developing PCB on their own. Also, there's an added frame with four screw holes, allowing for quick mounting.

The module can operate within the range of -40°C to +80°C; storage temperature ranges from -40°C to +85°C.

If there's a need for CTP Touch functionality, please consider the REP012864U-CTP model within this series.

Data source ref：REP012864UYAP3N00000

Inquiry or Demo Code Datasheet Back Previous Next
  • General Specs
  • Interface Pin Function
  • Contour Drawing
  • Absolute Maximum Ratings
  • Electrical Characteristics
Item Dimension Unit
Structure COG + FR + PCB
Size (Diagonal) 2.7 inch
Dot Matrix / Resolution 128 × 64 dots
Module Dimension 82.0 × 47.5 × 7 mm
Viewing Area 64.41 × 33.69 mm
Active Area 61.41 × 30.69 mm
Dot / Pixel Size 0.45 × 0.45 mm
Dot / Pixel Pitch 0.48 × 0.48 mm
Emitting Color White / Yellow
Support Grayscale Yes
Display Mode Passive Matrix
Gray Scale 4 bits
IC SSD1357
Interface 8-bits 6800 and 8080 parallel, 4-line SPI, I2C
Power Supply 3V
Duty 1/64 duty
Operating Temperature -40~+80 °C
Storage Temperature -40~+85 °C
Type OLED Graphic Display, Grayscale OLED
No. Symbol Function
1 VSS This is a ground pin.
2 VDD Power supply pin for core logic operation
3 NC Reserved Pin
The N.C. pin between function pins is reserved for compatible and flexible design.
4 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.
5 R/W#
(WR#)		 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.
6 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.
7 DB0 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.
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.
8 DB1
9 DB2
10 DB3
11 DB4
12 DB5
13 DB6
14 DB7
15 NC No connection
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# Chip Select
This pin is the chip select input. The chip is enabled for MCU communication only when CS# is pulled low.
18 NC No connection
19 BS2 Communicating Protocol Select.
These pins are MCU interface selection input. See the following table:
  BS1 BS2
I2C 1 0
4-wire Serial 0 0
8-bit 8080 Parallel 1 1
8-bit 6800 Parallel 0 1
20 BS1
21 NC No connection
22 NC No connection
23 NC No connection
24 NC No connection

2.7 inch COG Graphic 128x64 OLED supports Grayscale with PCB+FR - REP012864U

Parameter Symbol Min Max Unit
Supply Voltage for Logic VDD -0.3 4.0 V
Operating Temperature TOP -40 +80 °C
Storage Temperature TSTG -40 +85 °C

DC Electrical Characteristics

Item Symbol Condition Min Typ Max Unit
Supply Voltage for Logic VDD － 2.8 3.0 3.3 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 IDD VDD =3V － 120 180 mA

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