1.3 inch 64x128 Graphic COG OLED Display - REX064128A

1.3 inch 64x128 Graphic COG OLED Display

Model No. REX064128B

The REX064128B is a 1.3 inch 64x128 graphic COG OLED display, designed for versatile applications. It offers a resolution of 64x128 pixels and incorporates the SH1107 IC, supporting 4-Wire SPI and I2C interfaces with 1-bit grayscale (White/Black) display capability. This module emits a crisp white color, making it suitable for e-sports keyboards, steering wheels, networking devices, smart door locks, smart detection systems, wearable watches, and various other applications.

Featuring an impressive 10,000:1 contrast ratio, this REX064128B delivers exceptional visual clarity, outperforming traditional display technologies. Its logic supply voltage ranges from 1.65V to 3.5V, with a typical operating value of 3.3V. The module is built to perform reliably under extreme conditions, with an operating temperature range of -40℃ to +80℃ and a storage temperature range of -40℃ to +85℃.

Data Source ref: REX064128BWAP3N00000

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

Item	Dimension	Unit
Structure	COG
Size (Diagonal)	1.3	inch
Dot Matrix / Resolution	64 × 128	dots
Module Dimension	17.1 × 35.80 × 1.41	mm
Viewing Area	15.3 × 30.02	mm
Active Area	14.06 × 29.42	mm
Dot / Pixel Size	0.20 × 0.21	mm
Dot / Pixel Pitch	0.22 × 0.23	mm
Emitting Color	OLED, White
Support Grayscale	Yes
Display Mode	Passive Matrix
Gray Scale	1 bits (White/Black)
IC	SH1107
Interface	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
1	VSS	Ground.
2	D1	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). 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 (SDA).
3	D0
4	A0	This is the Data/Command control pad that determines whether the data bits are data or a command. A0 = “H”: Data. A0 = “L”: Command In I2C interface, this pad serves as SA0 to distinguish the different address of OLED driver.
5	— 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.
6	— CS	This pad is the chip select input. When CS = “L”, then the chip select becomes active, and data/command I/O is enabled.
7	IREF	This is a segment current reference pad. A resistor should be connected between this pad and VSS. Set the current at 15.625uA.
8	IM1	These are the MPU interface mode select pads. IM1 connect to VDD is I2C interface. IM1 connect to VSS is 4-wire SPI interface.
9	VDD	Power supply for logic and input.
10	VCOMH	This is a pad for the voltage output high level for common signals. A capacitor should be connected between this pad and VSS.
11	VPP	This is the most positive voltage supply pad of the chip. It should be supplied externally.
12	VSS	Ground.

1.3 inch 64x128 Graphic COG OLED Display - REX064128B

Parameter	Symbol	Min	Max	Unit
Supply Voltage for Logic	VDD	-0.3	+3.6	V
Supply Voltage for Display	VPP	7.0	17.0	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	－	1.65	3.3	3.5	V
Supply Voltage for Display	VPP	－	7.0	13.0	13.5	V
Input High Volt.	VIH	－	0.8×VDD	－	VDD	V
Input Low Volt.	VIL	－	VSS	－	0.2×VDD	V
Output High Volt.	VOH	－	0.8×VDD	－	VDD	V
Output Low Volt.	VOL	－	VSS	－	0.2×VDD	V
Display 50% Pixel on	IPP	VPP=13V	－	10	15	mA