20 Characters x 4 Lines COG OLED Display with PCB

Model No. WEA002004C

Type : Character
Structure : COG+PCB
20 characters x 4 Lines
IC：SSD1311
3.3V/5V Power supply
1/32 duty
Interface: 6800,8080,SPI,I2C
Display Color: White / Yellow

Categories: Character OLED Display, OLED Module

Description

WEA002004C is a COG character OLED with PCB board on module; it is diagonal size 2.89″ which made of 20 characters x 4 lines, it’s very readable due to the high contrast 10,000:1. The module is built in with SSD1311 IC; it supports 6800/8080 4bit/8-bit parallel, 4-Wire SPI, and I2C interface, 1/32 driving duty, supply voltage for Logic 5V, optional 3.3V. This model is built-in ROMs for ASCII, English and European and Japanese characters.

WEA002004C is a COG Character OLED display which is having mounting holes on PCB board; that makes it easily to fix module on customers’ applications.

WEA002004C OLED module is suitable for smart home application, medical device, smart control, meter, etc. This module can be operating at temperatures from -40℃ to +80℃; its storage temperatures range from -40℃ to +85℃.

Drawing

20 Characters x 4 Lines COG OLED Display with PCB - WEA002004C

Data source ref: WEA002004CWPP3N00000

SPECIFICATIONS

Interface Pin Function

Pin No.

Symbol

Pin Type

Description

VSS

Ground

VDD

Power supply and power supply for interface logic level.

REGVDD

This pin is pulled LOW, internal VDD regulator is disabled (Low voltage I/O application).

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.

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.

BS0

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 VDD

BS1

BS2

VSS
(FRGnd)

Ground

Mechanical Data

Item	Dimension	Unit
Number of Characters	20 Characters x 4 Lines	－
Module dimension	92.0 x 31.5 x 5.96 Max.	mm
View area	72.42 x 22.82	mm
Active area	70.42 x 20.82	mm
Dot size	0.57 x 0.57	mm
Dot pitch	0.60 x 0.60	mm
Character size	2.97 x 4.77	mm
Character pitch	3.55 x 5.35	mm
LCD type	OLED , Monochrome
Duty	1/32
IC	SSD1311
Interface	6800, 8080, SPI, I2C
Size	2.89 inch

Absolute Maximum Ratings

Item	Symbol	Min	Max	Unit
Operating Temperature	TOP	-40	+80	°C
Storage Temperature	TST	-40	+85	°C
Supply Voltage For Logic	VDD-VSS	-0.3	3.6	V

Electronical Characteristics

DC Electrical Characteristics

Item	Symbol	Condition	Min	Typ	Max	Unit
Supply Voltage For Logic	VDD-VSS	－	2.8	3.0	3.3	V
Input High Volt.	VIH	－	0.8xVDD	－	VDD	V
Input Low Volt.	VIL	－	GND	－	0.2xVDD	V
Output High Volt.	VOH	IOH=-0.5mA	0.8xVDD	－	VDD	V
Output Low Volt.	VOL	IOL=0.5mA	GND	－	0.2xVDD	V
Display 50% Pixel on	IDD	VDD=3V	–	110	220	mA

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