I2C OLED 0.96 Module, 128x64 Display I2C OLED

0.96-Inch COG Display I2C OLED Module 128x64 (ST7315 IC)

Model No. REX012864AD

The REX012864AD is a 0.96-inch COG I2C graphic passive matrix OLED display module, ideal for applications requiring a display I2C OLED solution. Featuring a 128×64 resolution and a 21.74 × 10.86 mm active area, it delivers sharp, high-contrast visuals for embedded systems, handheld devices, and control interfaces. Integrated with the ST7315 controller IC, this I2C OLED 0.96 module also supports 6800, 8080, and SPI interfaces. The variety of interface options makes it adaptable to a wide range of projects and applications. The available emitting colors are yellow and white.

Engineered for durability, the REX012864AD display I2C OLED operates within a -40°C to +80°C temperature range and tolerates storage conditions from -40°C to +85°C. With its slim 26.70 × 19.26 × 1.26 mm form factor, this I2C OLED 0.96 module is an excellent choice for projects where space is limited.

If you need technical support or product quotes for the REX012864AD or other 0.96-inch display I2C OLED modules, please feel free to contact our sales team!

Data Source Ref: REX012864ADWPP3N00000

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Datasheet

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Item	Dimension	Unit
Structure	COG
Size (Diagonal)	0.96	inch
Dot Matrix / Resolution	128 × 64	dots
Module Dimension	26.7 × 19.26 × 1.26	mm
Viewing Area	23.94 × 12.06	mm
Active Area	21.74 × 10.86	mm
Dot / Pixel Size	0.15 × 0.15	mm
Dot / Pixel Pitch	0.17 × 0.17	mm
Emitting Color	OLED, Yellow / White
Support Grayscale	No
Display Mode	Passive Matrix
IC	ST7315
Interface	8080 / 6800 / SPI / I2C
Power Supply	3V
Duty	1/64
Operating Temperature	-40~+80	°C
Storage Temperature	-40~+85	°C
Polarizer Type	Polarizer optional
Type	0.96 I2C OLED Graphic Display

Pin Function of the REX012864AD I2C OLED 0.96 Module

Pin No.

Symbol

Function

N.C. (GND)

The supporting pins can reduce the influences from stresses on the function pins. These pins must be connected to external ground.

C2N

DC/DC voltage converter.
Connect a capacitor between CA1P and CA1N.
Connect a capacitor between CA2P and CA2N.

C2P

C1P

C1N

VBAT

Analog power for internal booster. If VDD=VABT

DGND

Digital ground. Connect to GND

VDD

Power supply pin for core logic operation.

IF0

These pins select interface operation mode.

IF2	IF1	IF0	MPU interface type
L	L	L	4-line serial interface
L	L	H	3-line serial interface
L	H	L	I2C serial interface
H	H	L	8-bit 8080 parallel interface
H	L	L	8-bit 6800 parallel interface

IF1

IF2

CSB

Chip select input pin.
CSB=“L”: This chip is selected and the MPU interface is active.
CSB=“H”: This chip is not selected and the MPU interface is disabled (D[7:0] are high impedance).

RSTB

This pin is reset signal input. When the pin is low, initialization of the chip is executed. Keep this pin HIGH (i.e. connect to VDD) during normal operation.

It determines whether the access is related to data or command.
A0 = "H": Indicates that D[7:0] are display data;
A0 = "L": Indicates that D[7:0] are control data.
This pin is I2C slave address bit (SA0), when I2C interface is selected.

RWR

Read / Write execution control pin. (This pin is only used in parallel interface)

MPU Type	RWR	Description
6800-series	R/W	Read / Write control input pin R/W = "H" : read R/W = "L" : write
8080-series	/WR	Write enable input pin. The data are latched at the rising edge of the /WR signal.

This pin is not used in serial interfaces and should be connected to DGND.

ERD

Read / Write execution control pin. (This pin is only used in parallel interface)

MPU Type	ERD	Description
6800-series	E	Read / Write control input pin. R/W = "H": When E is "H", data bus is in output status. R/W = "L": The data are latched at the falling edge of the E signal.
8080-series	/RD	Read enable input pin. When /RD is "L", data bus is in output status.

This pin is not used in serial interfaces and should be connected to DGND.

18~25

D0~D7

When using 8-bit parallel interface: 8080 or 6800 mode 8 bit bi-directional data bus. Connect to the data bus of 8-bit microprocessor. When CSB is “H”, D[7:0] are high impedance. When using serial interface : 3-line SPI or 4-line SPI mode
D[2:1] : serial input/output data (SDA).
D[0] : serial input clock (SCL).
D1 to D2 must be connected together (SDA)
D[7:3] : fix to “L” by DGND. When using serial interface : I2C interface
D[2] : SDA_OUT, serial data and acknowledge output for the I2C interface.
D[1] : SDA_IN, serial input data
D[0] : SCL, serial input clock .
D1 to D2 must be connected together (SDA)
D[7:3] : fix to “L” by DGND.

IREF

Internal IREF is used, please leave this pin open.

VCOMH

VCOMH is the driving voltage for common and segment circuits.

VOLED

VOLED is the diving voltage for segment circuit.

PGND

Analog ground. Connect to GND

NC
(GND)

The supporting pins can reduce the influences from stresses on the function pins. These pins must be connected to external ground.

Compact COG Structure for Embedded Applications

I2C OLED 0.96 Module, 128x64 Display I2C OLED - REX012864AD Contour Drawing

Parameter	Symbol	Min	Max	Unit
Supply Voltage for Logic	VDD	-0.3	5.5	V
Supply Voltage for Display	VOLED	0	18.0	V
Operating Temperature	TOP	-40	+80	°C
Storage Temperature	TSTG	-40	+85	°C

Item	Symbol	Condition	Min	Typ	Max	Unit
Supply Voltage for Logic	VDD	－	2.4	3.0	5.0	V
Supply Voltage for Display (Supplied Externally)	VOLED	－	7.5	12.0	16.5	V
Charge Pump Regulator Supply Voltage	VBAT	－	3.0	3.5	5.0	V
Charge Pump Output Voltage for Display (Generated by Internal DC/DC)	Charge Pump VOLED	－	7.0	7.5	－	V
Input High Volt	VIH	－	0.8×VDD	－	－	V
Input Low Volt	VIL	－	－	－	0.2×VDD	V
Output High Volt	VOH	－	0.9×VDD	－	－	V
Output Low Volt	VOL	－	－	－	0.1×VDD	V
Display 50% Pixel on Operating Current for VOLED (VOLED Supplied Externally)	IOLED	VOLED=12V	－	6	12	mA
Display 50% Pixel on (VOLED Generated by Internal DC/DC)	IBAT	VBAT=3.5V	－	15	30	mA