2.42 OLED SSD1309 Display Module COG 128x64 - REX012864H
2.42 OLED SSD1309 Display Module COG 128x64 - REX012864H
2.42 OLED SSD1309 Display Module COG 128x64 - REX012864H
2.42 OLED SSD1309 Display Module COG 128x64 - REX012864H
2.42 OLED SSD1309 Display Module COG 128x64 - REX012864H
2.42 OLED SSD1309 Display Module COG 128x64 - REX012864H
2.42 OLED SSD1309 Display Module COG 128x64 - REX012864H
2.42 OLED SSD1309 Display Module COG 128x64 - REX012864H

2.42 OLED SSD1309 Display Module 128x64 COG (Frame Option)

Model No. REX012864H

The REX012864H is a 2.42 OLED SSD1309 display module with a 128×64 resolution and COG (Chip-on-Glass) structure, offering an optional frame design for flexible assembly. Powered by the OLED SSD1309 IC, it supports 6800, 8080, SPI, and I2C interfaces, delivering sharp monochrome visuals with high contrast.

This 2.42 OLED SSD1309 module operates from -40°C to +80°C, supports logic voltage 1.65–3.3V, and is available in four emitting colors: white, yellow, green, and sky blue. Compact, durable, and versatile, it is ideal for handheld devices, control panels, and industrial equipment.

If you need technical support or product quotes for the REX012864H or other 2.42 OLED SSD1309 display modules, please feel free to contact our sales team!

Data Source Ref: REX012864HWAP3N00000

Inquiry or Demo Code Datasheet Back Previous Next
  • General Specs
  • Interface Pin Function
  • Contour Drawing
  • Absolute Maximum Ratings
  • Electrical Characteristics
  • Options
Item Dimension Unit
Structure COG; Frame Option
Size (Diagonal) 2.42 inch
Dot Matrix / Resolution 128 × 64 dots
Module Dimension 60.5 × 37.0 × 2.15 mm
Viewing Area 57.01 × 28.91 mm
Active Area 55.01 × 27.49 mm
Dot / Pixel Size 0.40 × 0.40 mm
Dot / Pixel Pitch 0.43 × 0.43 mm
Emitting Color OLED, White / Yellow / Green / Sky Blue
Display Mode Passive Matrix
IC SSD1309
Interface 6800, 8080, SPI, I2C
Power Supply 3V
Duty 1/64 duty
Operating Temperature -40~+80 °C
Storage Temperature -40~+85 °C
Polarizer Type Polarizer Optional
Type 2.42 SSD1309 OLED Graphic Display

Pin Function of REX012864H 2.42 OLED SSD1309 Module

Pin No. Symbol Function
1 NC(GND) 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.
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 and BS1 are pin select.
  BS1 BS2
I 2 C 1 0
4-wire Serial 0 0
8-bit 68XX Parallel 0 1
8-bit 80XX Parallel 1 1

(1) 0 is connected to VSS
(2) 1 is connected to VDD
20 BS1
21 VDD Power supply pin for core logic operation
22-29 NC No connection
30 VSS Ground.
31 NC(GND) No connection

REX012864H 2.42 SSD1309 OLED Module Contour Drawing

2.42 OLED SSD1309 Display Module COG 128x64 - REX012864H Contour Drawing

Parameter Symbol Min Max Unit
Supply Voltage for Logic VDD -0.3 4 V
Supply Voltage for Display VCC 0 15 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 － 1.65 3.0 3.3 V
Supply Voltage for Display VCC － 7.0 13.0 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
Display 50% Pixel on ICC VCC =13V － 18 27 mA

Frame Options

Drawing Material FR No. Detailed Drawing Create Date
REH012864H SUS-304 FFL6D00049AA121XXX00 View 20160429

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