2,7 polegadas, 128x64 COG Gráfico Display OLED (IC SSD1357) com quadro - WEF012864U

2,7 polegadas, 128x64 COG Gráfico Display OLED (IC SSD1357) com quadro

Model No. WEF012864U

►Tipo: Gráfico
►Estrutura: COG+com quadro
►Tamanho: 2.7 polegadas
►Matriz de pontos 128x64
►IC：SSD1357
►Alimentação 3V
►1/64 duty
►Interface: 6800,8080,SPI,I2C
►Display Color: Branco / Amarelo
►Support Grayscale

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Descrição

WEF012864U é um módulo de exibição PMOLED passivo monocromático COG gráfico de 2,7 polegadas com uma moldura de ferro e uma resolução de painel de 128x64 pixels e alto contraste(10,000:1) E suporta escala de cinza de 4 bits. WEF012864U tem um controlador IC SSD1357 embutido, que suporta múltiplas interfaces de transmissão: interface paralela de 8 bits 6800, 8080, SPI de 4 linhas e interface serial I2C, usando um driver de 3V.

O mesmo painel OLED também pode ser consultado para:

A série WEO012864U apresenta um design sem moldura.
A série WEP012864U incorpora um quadro de ferro + placa de circuito impresso (PCB), simplificando a experiência do usuário ao eliminar a necessidade de desenvolvimento adicional de PCB e integrar configurações de interface e circuitos VCC.
Além do quadro de ferro e da placa de circuito impresso (PCB), a série WEP012864U-CTP adiciona a funcionalidade de toque CTP.

WEF012864K é um módulo de display OLED com estrutura COG. É orgânico, autoiluminado e não requer retroiluminação. O módulo é fino e leve e tem baixo consumo de corrente. O módulo WEF012864K é muito adequado para produtos portáteis, instrumentos de medição, produtos domésticos, sistemas POS, Internet das coisas, equipamentos de comunicação e equipamentos médicos, etc. A temperatura de operação deste módulo é de -40°C a +80°C, e a temperatura de armazenamento é de -40°C a +85°C.

DRAWING

2.7 inch,128x64 COG OLED Display Module (IC SSD1357) with Frame - WEF012864U

Data source ref:WEF012864ULPP3N00000

SPECIFICATIONS

Função do pino de interface

Pin No.

Símbolo

Função

NC(GND)

No connection

VSS

Ground of Logic Circuit.
This is a ground pin. It also acts as a reference for the logic pins.
It must be connected to external ground.

VCC

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

VCOMH

Voltage Output High Level for COM Signal.
This pin is the input pin for the voltage output high level for COM signals.
A tantalum capacitor should be connected between this pin and VSS.

VLSS

Ground of Analog Circuit
These are the analog ground pins. They should be connected to VSS externally.

6~13

D7~D0

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.

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.

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.

16
17

BS1
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

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.

CS#

Chip SelectThis pin is the chip select input.
The chip is enabled for MCU communication onlywhen CS# is pulled 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.

Frame Frequency Triggering Signal
This pin will send out a signal that could be used to identify the driver status.
Nothing should be connected to this pin. It should be left open individually.

IREF

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

N.C

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

VDD

Power Supply for I/O Pin.
This pin is a power supply pin of I/O buffer. It should be connected to VCI or external source. All I/O signal should have VIH reference to VDDIO. When I/O signal pins (BS0~BS1, D0~D7, control signals…) pull high, they should be connected to VDDIO.

Power Supply for Core Logic Circuit
This is a voltage supply pin. It can be supplied externally (within the range of 2.4~2.6V) or regulated internally from VCI. A capacitor should be connected between this pin & VSS under all circumstances.

VDD

Power Supply for Operation.
This is a voltage supply pin. It must be connected to external source & always be equal to or higher than VDD & VDDIO.

VSL

Voltage Output Low Level for SEG Signal
This is segment voltage (output low level) reference pin.
This pin has to connect with resistor and diode to ground (details depends on application).

VLSS

Ground of Analog Circuit
These are the analog ground pins. They should be connected to VSS externally.

VLSS

Power Supply for OEL Panel
These are the most positive voltage supply pin of the chip. They must be connected to external source.

NC(GND)

No connection

Especificações Gerais

Article	Dimensions	Unité
Matriz de pontos	128 × 64	Pontos
Dimensão do módulo	89.72 × 47.2 ×3.4	mm
Área ativa	61.4 × 30.69	mm
Tamanho do ponto	0.45 × 0.45	mm
Distância entre pontos	0.48 × 0.48	mm
Modo de exibição	Passive Matrix
Cor de exibição	Monochrome
Drive Duty	1/64 Duty
Escala de cinza	4 bits
IC	SSD1357
Interface	8-bits 6800 and 8080 parallel, 4-line SPI, I2C
Tamanho	2,7 polegadas

Classificações Máximas Absolutas

Parameter	Símbolo	Valor Min	Valor Máximo	Unidade
Supply Voltage for Logic	VDD	-0.3	4	V
Supply Voltage for Display	VCC	0	15	V
Temperatura de operação	TOP	-40	+80	°C
Temperatura de armazenamento	TSTG	-40	+85	°C

Características Eletrônicas

DC Características Eletrônicas

Item	Símbolo	Condição	Valor Min	Valor Típico	Valor Máximo	Unidade
Supply Voltage for Logic	VDD	－	1.65	3.0	3.3	V
Supply Voltage for Display	VCC	－	8.0	9.0	9.5	V
High Level Input	VIH	－	0.8×VDD	－	VDD	V
Low Level Input	VIL	－	0	－	0.2×VDD	V
High Level Output	VOH	－	0.9×VDD	－	VDD	V
Low Level Output	VOL	－	0	－	0.1×VDD	V
Display 50% Pixel on	ICC	VCC =9V	－	31.5	47.5	mA

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