REX012864AM - Raystar Optronics, Inc.

2.7 inch OLED 128x64 COG Graphic SH1106 Display Module

Model No. REX012864AM

REX012864AM is a 2.7-inch COG structure graphic type OLED module,made of resolution 128x64 pixels.This monochrome graphic display is built-in with SH1106 IC; it can be communicated via I2C, 4-line SPI, 6800 or 8080 parallel interface. The module has a module dimension of 73 x 41.86 mm and AA size of 61.41 x 30.69 mm. It's feature high contrast ratio 10,000 : 1, 3V power supply, and 1/64 duty. The variety of interface options makes these OLED modules adaptable to any project or application.

REX012864AM is ideal for smart home applications,POS systems,Cloud/IoT systems, medical instruments, etc.The displays works within temperature from -40℃ to +80℃; Storage temperature range is -40℃ to +85℃.

Data source ref：REX012864AMWPP3N00000

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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)	2.7	inch
Dot Matrix / Resolution	128 × 64	dots
Module Dimension	73.0 x 41.86 x 2.01	mm
Viewing Area	63.41 × 32.69	mm
Active Area	61.41 x 30.69	mm
Dot / Pixel Size	0.45 x 0.45	mm
Dot / Pixel Pitch	0.48 x 0.48	mm
Emitting Color	White / Yellow
Display Mode	Passive Matrix
IC	SH1106
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

No.

Symbol

Function

ESD_GND

ESD Ground pin

VSS

Ground.

3-10

No connection

VDD1

Power supply input

IM1

These are the MPU interface mode select pads.

	8080	I2C	6800	4-wire SPI
IM1	1	1	0	0
IM2	1	0	1	0

Note
(1) 0 is connected to VSS
(2) 1 is connected to VDD1

IM2

No connection

CS#

This pad is the chip select input. When CS# = “L”, then the chip select becomes active, and data/command I/O is enabled.

RES#

This is a reset signal input pad. When RES# is set to “L”, the settings are initialized. The reset operation is performed by the RES# signal level.

This is the Data/Command control pad that determines whether the data bits are data or a command.
A0 = “H”: the inputs at D0 to D7 are treated as display data.
A0 = “L”: the inputs at D0 to D7 are transferred to the command registers.
In I2C interface, this pad serves as SA0 to distinguish the different address of OLED driver.

WR#
(R/W#)

This is a MPU interface input pad.
When connected to an 8080 MPU, this is active LOW. This pad connects to the 8080 MPU WR signal. The signals on the data bus are latched at the rising edge of the WR signal.
When connected to a 6800 Series MPU: This is the read/write control signal input terminal.
When R/W= “H”: Read.
When R/W= “L”: Write.

E/RD#

This is a MPU interface input pad.
When connected to an 8080 series MPU, it is active LOW. This pad is connected to the RD# signal of the 8080 series MPU, and the data bus is in an output status when this signal is “L”.
When connected to a 6800 series MPU, this is active HIGH. This is used as an enable clock input of the 6800 series MPU.
When RD# = “H”: Enable.
When RD# = “L”: Disable.

20~27

D0~D7

This is an 8-bit bi-directional data bus that connects to an 8-bit or 16-bit standard MPU data bus.
When the serial interface is selected, then D0 serves as the serial clock input pad (SCL) and D1 serves as the serial data input pad (SI). At this time, D2 to D7 are set to high impedance.
When the I2C interface is selected, then D0 serves as the serial clock input pad (SCL) and D1 serves as the serial data input pad (SDAI). At this time, D2 to D7 are set to high impedance.

IREF

This is a segment current reference pad. A resistor should be connected between this pad and VSS. Set the current at 18.75uA.

VCOMH

This is a pad for the voltage output high level for common signals.
A capacitor should be connected between this pad and VSS.

VPP

OLED panel power supply. It could be supplied externally.
A capacitor should be connected between this pad and VSS.

ESD_GND

ESD Ground pin

2.7 inch OLED 128x64 COG Graphic SH1106 Display Module - REX012864AM

Parameter	Symbol	Min	Max	Unit
Supply Voltage for Logic	VDD	-0.3	3.6	V
Supply Voltage for Display	VCC	-0.3	14.5	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	VDD1	－	1.65	3.0	3.3	V
Supply Voltage for Display	VPP	－	6.4	13.0	13.5	V
High Level Input	VIH	－	0.8×VDD1	－	VDD1	V
Low Level Input	VIL	－	VSS	－	0.2×VDD1	V
High Level Output	VOH	－	0.8×VDD1	－	VDD1	V
Low Level Output	VOL	－	VSS	－	0.2×VDD1	V
Display 50% Pixel on	IPP	VPP =13V	－	24	36	mA