Módulo de Pantalla OLED 20x4 COG SSD1311 de 2.89"

Modelo Nº WEO002004C

►Tipo : Caracteres
►Estructura : COG
►20 caracteres x 4 líneas
►IC：SSD1311
►Fuente de alimentación de 3V/5V
►1/32 duty
►Interfaz : 6800, 8080, SPI, I2C
►Color de la pantalla: Blanco / Amarillo
►Otras opciones de FPC disponibles en la siguiente tabla.

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Descripción

El módulo de pantalla OLED 20x4 COG SSD1311 (Modelo: WEO002004C) presenta un diseño COG (Chip On Glass), ofreciendo una solución de visualización de alto rendimiento y confiable. Este módulo de pantalla OLED SSD1311 es conocido por su excelente calidad de visualización y durabilidad, lo que lo hace ideal para una variedad de aplicaciones.

Las dimensiones del módulo son 84.5 x 27.5 mm con un grosor de 2.17 mm, y el área activa es de 70.42 x 20.82 mm, con un tamaño diagonal de 2.89 pulgadas. Equipado con un IC controlador SSD1311, el WEO002004C soporta un conjunto de caracteres integrado, incluyendo caracteres ASCII, en inglés, europeos y japoneses. Cada carácter está compuesto por 5x8 píxeles, garantizando una representación detallada y clara del texto.

El modo de visualización de este módulo es de 4 líneas, con cada línea capaz de mostrar 20 caracteres. Debido a la naturaleza autoemisiva de la tecnología OLED, este módulo no requiere retroiluminación, resultando en un diseño más ligero y delgado, además de una relación de contraste mejorada de 10,000:1. Además, presenta un ángulo de visión ultraamplio de hasta 175 grados, asegurando una calidad de visualización consistente desde varios ángulos. El módulo también ofrece bajo consumo de energía y un amplio rango de temperatura de operación, demostrando su versatilidad.

El rango de temperatura de operación del WEO002004C es de -40°C a +80°C, con un rango de temperatura de almacenamiento de -40°C a +85°C, permitiendo un rendimiento estable en condiciones extremas. El módulo opera dentro de un rango de voltaje lógico de 2.4V a 3.3V, con un valor típico de 3V, y utiliza un método de conducción de 1/32 de ciclo.

Además, el WEO002004C soporta múltiples opciones de interfaz, incluyendo interfaces paralelas de 8 bits 6800/8080 y interfaces seriales I2C/SPI, ofreciendo conectividad flexible para satisfacer diferentes requisitos de sistema. La serie del módulo también proporciona varias opciones de Circuito Impreso Flexible (FPC) para abordar diversas necesidades de los clientes.

Con su calidad de visualización confiable, amplio rango de temperatura de operación y opciones flexibles de interfaz, el módulo OLED WEO002004C con IC controlador SSD1311 es una alternativa práctica a los módulos LCD tradicionales. Recomendamos considerar este módulo OLED 20x4 para mejorar el rendimiento de visualización de su producto, logrando una calidad de visualización superior y un menor consumo de energía.

Opciones de FPC

DIBUJO

SSD1331 OLED Display, 2.89 inches 20x4 COG OLED SSD1311 - WEO002004C

Data source ref: WEO002004CLPP5N00000

ESPECIFICACIONES

Función interfaz Pin

Pin No.

Símbolo

Pin Type

Función

－

No connection

VSL

This is segment voltage (output low level) reference pin.
When external VSL is not used, this pin should be left open.
When external VSL is used, connect with resistor and diode to ground (details depend on application).

VSS

Ground pin. It must be connected to external ground.

REGVDD

Internal VDD regulator selection pin in 5V I/O application mode.
When this pin is pulled HIGH, internal VDD regulator is enabled (5V I/O application).
When this pin is pulled LOW, internal VDD regulator is disabled (Low voltage I/O application).

SHLC

This pin is used to determine the Common output scanning direction.
COM scan direction

SHLC	COM scan direction
1	COM0 to COM31 (Normal)
0	COM31 to COM0 (Reverse)

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

SHLS

This pin is used to change the mapping between the display data column address and the Segment driver.
SEG scan direction

SHLS	SEG direction
1	SEG0 to SEG99 (Normal)
0	SEG99 to SEG0 (Reverse)

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

VDD

Power supply for core logic operation.
VDD can be supplied externally or regulated internally.
In LV IO application (internal VDD is disabled), this is a power input pin.
In 5V IO application (internal VDD is enabled), VDD is regulated internally from VDDIO.
A capacitor should be connected between VDD and VSS under all circumstances.

VDDIO

Low voltage power supply and power supply for interface logic level in both Low Voltage I/O and 5V I/O application. It should match with the MCU interface voltage level and must be connected to external source.

BS0

MCU bus interface selection pins. Select appropriate logic setting as described in the following table. BS2, BS1 and BS0 are pin select.
Bus Interface selection

BS[2:0]	Interface
000	Serial Interface
001	Invalid
010	I2C
011	Invalid
100	8-bit 6800 parallel
101	4-bit 6800 parallel
110	8-bit 8080 parallel
111	4-bit 8080 parallel

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

BS1

BS2

GPIO

I/O

It is a GPIO pin. Details refer to OLED command DCh.

CS#

This pin is the chip select input connecting to the MCU.
The chip is enabled for MCU communication only when CS# is pulled LOW (active LOW).
In I2C mode, this pin must be connected to VSS.

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.

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 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.

I/O

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: SID and D2 will be the serial data output: SOD.
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.

IREF

This pin is the segment output current reference pin.
IREF is supplied externally.
A resistor should be connected between this pin and VSS to maintain current of around 15uA.

ROM0

These pins are used to select Character ROM; select appropriate logic setting as described in the following table. ROM1 and ROM0 are pin select as shown in below table:
Character ROM selection

ROM1	ROM0	ROM
0	0	A
0	1	B
1	0	C
1	1	S/W selectable(3)

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

ROM1

OPR0

This pin is used to select the character number of character generator.
Character RAM selection

OPR1	OPR0	CGROM	CGRAM
1	1	256	0
0	1	248	8
1	0	250	6
0	0	240	8

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

OPR1

VCOMH

COM signal deselected voltage level.
A capacitor should be connected between this pin and VSS.
No external power supply is allowed to connect to this pin.

VCC

Power supply for panel driving voltage. This is also the most positive power voltage supply pin. It is supplied by external high voltage source.

－

No connection

Datos mecánicos

Elemento	Dimensión	Unidad
Formato de presentación	20 caracteres x 4 líneas	－
Dimensión del módulo	84.5 x 27.5 x 2.17	mm
Área de visualización	72.42 x 22.82	mm
zona activa	70.42 x 20.82	mm
Tamaño del punto	0.57 x 0.57	mm
Distancia entre puntos	0.60 x 0.60	mm
Tamaño de los caracteres	2.97 x 4.77	mm
Character pitch	3.55 x 5.35	mm
Tipo de LCD	OLED , Monocromos
Duty	1/32
IC	SSD1311
Interfaz	6800,8080,SPI,I2C
Tamaño (Diagonal)	2.89 pulgada

Valores nominales máximos absolutos

Elemento	Símbolo	Valor mín.	Valor máx.	Unidad
Supply Voltage For Logic	VDD	-0.3	VDDIO	V
Power Supply for I/O pins	VDDIO	-0.3	6	V
Operating Voltage	VCC	0	16	V
Temperatura de funcionamiento	TOP	-40	+80	°C
Temperatura de almacenamiento	TST	-40	+85	°C

Características electrónicas

DC Características electrónicas

Elemento	Símbolo	Condición	Valor mín.	Valor típico	Valor máx.	Unidad
Supply Voltage For Logic	VDD	Low Voltage I/O	2.4	3.0	3.3	V
Supply Voltage For Logic	VDD	5V I/O (VDD as output)	－	－	－	V
Power supply for I/O pins	VDDIO	Low Voltage I/O	2.4	3.0	3.3	V
Power supply for I/O pins	VDDIO	5V I/O	4.4	5.0	5.3	V
Operating Voltage	VCC	－	8.0	10.0	10.5	V
Operating Voltage	VCC	－	8.0	12.0	12.5	V
Input High Volt.	VIH	－	0.8xVDDIO	－	－	V
Input Low Volt.	VIL	－	－	－	0.2xVDDIO	V
Output High Volt.	VOH	IOH=-0.5mA	0.9xVDDIO	－	－	V
Output Low Volt.	VOL	IOL=0.5mA	－	－	0.1xVDDIO	V
50% Check Board Operating Current	ICC	VCC=10V	－	19	29	mA
50% Check Board Operating Current	ICC	VCC=12V	－	23	35	mA