2.7″, 128×64 COG Capacitive Touch OLED Display with Frame +PCB

Model No. WEP012864U-CTP

Type: Graphic
Structure: COG + Frame + PCB
Size: 2.7 inch
128 x 64 Dot Matrix
IC：SSD1357
3V Power supply
1/64 duty
Interface: 6800, 8080, SPI, I2C
With Capacitive Touch Screen (CTP)
Detect Point : 1 Finger
Display Color: White / Yellow
Support Grayscale

Categories: OLED Module, OLED Touch Display

Description

WEP012864U-CTP is a COG graphic OLED display featuring a capacitive touch panel with a resolution of 128×64 dots and a 2.7-inch (61.41 × 30.69 mm) active area. The module is equipped with the SSD1357 IC, supporting 6800/8080 8-bit and 4-wire SPI, as well as I2C interfaces. The display supports 4-bit grayscale, with a logic voltage of 3V and a duty cycle of 1/64. The capacitive touch panel includes the built-in IC GT911, supporting an I2C interface with 1-point touch capability.

The WEP012864U-CTP OLED series comes with a metal frame and a PCB board that easily connects to the application via wires. Customers are not required to develop additional PCB boards themselves, as it integrates interface settings and VCC circuits, simplifying the user experience. The PCB is designed with four screw holes for easy installation of the module on the application product.

This OLED module boasts a high contrast ratio of 10,000:1, allowing for more vibrant and deeper blacks, as well as brighter whites. This leads to enhanced image quality, sharper details, and improved readability. The module is operational within a temperature range of -20℃ to 70℃, with storage temperatures spanning from -30℃ to 80℃.

WEP012864U, featuring a CTP touch panel, is highly suitable for smart home applications, hi-tech equipment, meter equipment, industrial control systems, medical instruments, and more.

Drawing

Data source ref: WEP012864UWPP3D00000

SPECIFICATIONS

Interface Pin Function

No.

Symbol

Function

VSS

This is a ground pin.

VDD

Power supply pin for core logic operation

Reserved Pin
The N.C. pin between function pins is reserved for compatible and flexible design.

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.
When 3-wire serial interface is selected, this pin must be connected to VSS.

R/W#
(WR#)

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.

DB0

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.
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.

DB1

DB2

DB3

DB4

DB5

DB6

DB7

No connection

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.

CS#

Chip Select
This pin is the chip select input. The chip is enabled for MCU communication only when CS# is pulled low.

No connection

BS2

Communicating Protocol Select.
These pins are MCU interface selection input. See the following table:

	BS1	BS2
I2C	1	0
4-wire Serial	0	0
8-bit 8080 Parallel	1	1
8-bit 6800 Parallel	0	1

BS1

TP_SCK

I2C clock signal

TP_SDA

I2C data signal

TP_INT

Interrupt signal, active low, asserted to request
Host start a new transaction

TP_RST

External reset signal, active low

Mechanical Data

Item	Dimension	Unit
Dot Matrix	128 x 64	－
Module dimension	82.0 × 47.5 × 8.65 Max.	mm
Active Area	61.41 × 30.69	mm
Pixel Size	0.45 × 0.45	mm
Pixel Pitch	0.48 × 0.48	mm
Display Mode	Passive Matrix
Display Color	Monochrome
Drive Duty	1/64 Duty
Gray Scale	4 bits
IC	SSD1357
Interface	8-bits 6800 and 8080 parallel, 4-line SPI, I2C
Size	2.7 inch

CTP IC	GT911
Detect Point	1
CTP Interface	I2C
Surface	Normal Glare

Absolute Maximum Ratings

Parameter	Symbol	Min	Max	Unit
Supply Voltage for Logic	VDD	-0.3	4.0	V
Operating Temperature	TOP	-20	+70	°C
Storage Temperature	TSTG	-30	+80	°C

Electronical Characteristics

DC Electrical Characteristics

Item	Symbol	Condition	Min	Typ	Max	Unit
Supply Voltage for Logic	VDD	－	2.8	3.0	3.3	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
50% Check Board operating Current	IDD	VDD =3V	－	160	240	mA

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