REX012864AN - Graphic OLED Display Module

1.33-inch 128x64 COG Dual-Color Graphic OLED Display Module (SSD1309 IC)

Model No. REX012864AN

The REX012832AN is a 1.33-inch 128×64 COG Graphic OLED Display Module powered by the SSD1309 IC. This passive matrix OLED delivers crisp monochrome visuals with an optional dual-color display, enhancing contrast and visual appeal. Supporting multiple interfaces — 6800, 8080, 4-wire SPI, and I2C — it offers developers flexible integration options across various embedded systems.

Operating reliably over a wide temperature range from -40°C to +80°C, the REX012832AN ensures stable performance even in harsh environments. With a typical logic supply voltage of 3.0V and a display voltage of 12.0V, this display module is ideal for instrumentation panels, handheld devices, and smart home systems.

Discover more about the REX012832AN or contact our sales team today to find the best OLED display solution for your next project!

Data Source Ref: REX012864ANXAP3N00000

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Datasheet

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General Specs
Interface Pin Function
Contour Drawing
Absolute Maximum Ratings
Electrical Characteristics

Item	Dimension	Unit
Structure	COG
Size (Diagonal)	1.33	inch
Dot Matrix / Resolution	128 × 64	dots
Module Dimension	33.5 x 27.08 x 1.26	mm
Viewing Area	30.52 × 20.33	mm
Active Area	28.52 x 18.33	mm
Dot / Pixel Size	0.203 x 0.258	mm
Dot / Pixel Pitch	0.223 x 0.278	mm
Emitting Color	OLED, Yellow/Green
Display Mode	Passive Matrix
IC	SSD1309
Interface	6800,8080,4-wire SPI,I2C
Power Supply	3V
Duty	1/64 duty
Operating Temperature	-40~+80	°C
Storage Temperature	-40~+85	°C
Type	OLED Graphic Display

Pin No.

Symbol

Function

ESD_GND

It should be connected to ground.

VLSS

This is an analog ground pin

VSS

Ground.

No connection

VDD

Power supply pin for core logic operation

BS1

MCU bus interface selection pins. Select appropriate logic setting as described in the following table. BS2 and BS1 are pin select

Interface Selection (BS1 / BS2)

Interface	BS1	BS2
I2C	1	0
4-wire Serial	0	0
8-bit 68XX Parallel	0	1
8-bit 80XX Parallel	1	1

Note
(1) 0 is connected to VSS
(2) 1 is connected to VDD

BS2

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).

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.

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.

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.

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.

13-20

D0~D7

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.

IREF

This pin is the segment output current reference pin.
IREF is supplied externally.

VCOMH

COM signal deselected voltage level.
A capacitor should be connected between this pin and VSS.

VCC

Power supply for panel driving voltage. This is also the most positive power voltage supply pin.

ESD_GND

It should be connected to ground.

REX012864AN Contour Drawing - Graphic OLED Display Module - Raystar

Parameter	Symbol	Min	Max	Unit
Supply Voltage for Logic	VDD	-0.3	4	V
Supply Voltage for Display	VCC	0	17	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	12.0	12.5	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 =12V	－	8.0	12.0	mA