2.08″ OLED Display Module 256×64

Model No. WEO025664A

Type: Graphic
Structure: COG
Size: 2.08 inch
256×64 Dot Matrix
IC：SSD1362
3V Power supply
1/64 duty
Interface: 6800, 8080, SPI, I2C
Display Color: White / Yellow
Support Grayscale
Other FPC options available in below table

Categories: Graphic OLED Display, OLED Module

Description

WEO025664A soldering version is a graphic COG OLED display which is made of 256×64 pixels, diagonal size 2.08 inch. WEO025664A Hotbar version is built in with SSD1362 driver IC; it can communicate via 6800/8080 8-bit parallel, I2C, 3-Wire and 4-Wire SPI interface; it supports 4 bits grayscale image. The supply voltage for logic of WEO025664A is 3V supply, 1/64 duty cycle, display with 50% check board current is 15mA@12Vcc (typical value). This OLED module can be operating at temperatures from -40℃ to +80℃; its storage temperatures range from -40℃ to +85℃.

WEO025664A is directly solder flex tail for super-thin profile. This COG structure OLED module is ultra thin 1.61 mm; lightweight and low power consumption. It is suitable for smart home application, meter device, personal care appliance, health device, etc. Winstar provides ZIF FPC and Hotbar versions for customers to choose the suitable module for your application.

Drawing

WEO025664A with Hotbar FPC

2.08 OLED Display Module 256x64 (Hotbar FPC) - WEO025664A

Data source ref: WEO025664ALAP3N00H00

WEO025664A with ZIF FPC

WEO025664A with ZIF FPC
Data source ref: WEO025664ALAP3N00000

SPECIFICATIONS

Interface Pin Function

No.

Symbol

Function

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.

This pin is the segment pre-charge voltage reference pin.
A capacitor should be connected between this pin and VSS.
No external power supply is allowed to connect to this pin.

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.

VDD

Power supply for core logic operation.
VDD can be supplied externally (within the range of 1.65V to 2.6V) or regulated internally from VCI when VCI is >2.6V.
A capacitor should be connected between VDD and VSS under all circumstances.

IREF

This pin is the segment output current reference pin.
When external IREF is used, a resistor should be connected between this pin and VSS to maintain current of around 18.75uA.
When internal IREF is used, this pin should be kept NC.

VSS

Ground pin. It must be connected to external ground.

VSS

Ground pin. It must be connected to external ground.

VCI

Low voltage power supply.
VCI must always be equal to or higher than VDD and VDDIO.

BS0

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

BS[2:0]	Interface
000	4 line SPI
001	3 line SPI
110	8-bit 8080 parallel
100	8-bit 6800 parallel
010	I²C

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

BS1

BS2

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 3-wire serial 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.

This pin is MCU interface input.
When 6800 interface mode is selected, this pin will be used as the Enable 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.

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.
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.

Mechanical Data

Item	Dimension	Unit
Dot Matrix	256 x 64 Dots	－
Module dimension	60.5 x 19.0 x 1.61	mm
Active Area	51.18 x 12.78	mm
Pixel Size	0.18 x 0.18	mm
Pixel Pitch	0.2 x 0.2	mm
Display Mode	Passive Matrix
Display Color	Monochrome
Drive Duty	1/64 Duty
Gray Scale	4 Bits
IC	SSD1362
Interface	3-Wire and 4-Wire SPI, I2C, 6800, 8080
Size	2.08 inch

Absolute Maximum Ratings

Parameter	Symbol	Min	Max	Unit
Supply Voltage for Operation	VCI	-0.5	5.5	V
Supply Voltage for Logic	VDD	-0.5	2.75	V
Supply Voltage for Display	VCC	-0.5	21	V
Operating Temperature	TOP	-40	+80	°C
Storage Temperature	TSTG	-40	+85	°C

Electronical Characteristics

DC Electrical Characteristics

Item	Symbol	Condition	Min	Typ	Max	Unit
Supply Voltage for Logic	VCI	－	2.8	3.0	3.3	V
Supply Voltage for Display	VCC	－	11.5	12.0	12.5	V
Input High Volt.	VIH	－	0.8×VCI	－	VCI	V
Input Low Volt.	VIL	－	VSS	－	0.2×VCI	V
Output High Volt.	VOH	－	0.9×VCI	－	VCI	V
Output Low Volt.	VOL	－	VSS	－	0.1×VCI	V
50% Check Board operating Current	ICC	VCC=12V	－	15	30	mA

FPC Options:

Drawing	FPC Length	PIN	Pitch	ZIF or HOTBAR FPC	Interface	FPC No.	Create Date
	23	24	0.7	HOTBAR	3-Wire and 4-Wire SPI, I2C, 6800, 8080	FPC2070002401XXXXX02	20180611
	21	31	0.3	ZIF	3-Wire and 4-Wire SPI, I2C, 6800, 8080	FPC2030003111XXXXX02	20171107

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