3.55 인치 256x64 COG 유기 EL 디스플레이 - WEO025664D

3.55 인치 256x64 COG 유기 EL 디스플레이

모델 번호 WEO025664D

►유형 : 그래픽
►구조 : COG
►크기 : 3.55 인치
►256×64 점 행렬
►IC：SSD1322
►3V 전원 공급 장치
►1/64 duty cycle
►인터페이스 : 6800, 8080, SPI
►디스플레이 색상: 백색 / 노란색
►지원 그레이스케일

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3.55 inch 256x64 COG OLED Display Support Grayscale - WEO025664D

Data source ref: WEO025664DWPP3N00001

사양

인터페이스 핀 기능

Pin Number

기호

I/O

기능

ESD_GND

Ground

VSS

Ground.

VCC

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

VCOMH

COM signal deselected voltage level.
A capacitor should be connected between this pin and VSS.

VLSS

Analog system ground pin.

6~13

D7~D0

I/O

Host Data Input/Output Bus
These pins are 8-bit bi-directional data bus to be connected to the microprocessor’s data bus.
When serial mode is selected, D1 will be the serial data input SDIN and D0 will be the serial clock input SCLK.

E/RD#

Read/Write Enable or Read
This pin is MCU interface input.
When interfacing to a 68XX-series microprocessor, this pin will be used as the Enable (E) signal. Read/write operation is initiated when this pin is pulled high and the CS# is pulled low.
When connecting to an 80XX-microprocessor, this pin receives the Read (RD#) signal. Data read operation is initiated when this pin is pulled low and CS# is pulled low.
When serial mode is selected, this pin must be connected to VSS.

R/W#

Read/Write Select or Write
This pin is MCU interface input. When interfacing to a 68XX-series microprocessor, this pin will be used as Read/Write (R/W#) selection input. Pull this pin to “High” for read mode and pull it to “Low” for write mode.
When 80XX 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 CS# is pulled low.
When serial mode is selected, this pin must be connected to VSS.

BS0

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

BS[1:0]	Bus Interface Selection
00	4 line SPI
01	3 line SPI
10	8-bit 8080 parallel
11	8-bit 6800 parallel

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

BS1

D/C#

Data/Command Control
This pin is Data/Command control pin connecting to the MCU.
When the pin is pulled HIGH, the content at D[7:0] will be interpreted as data.
When the pin is pulled LOW, the content at D[7:0] will be interpreted as command.

CS#

Data/Command Control
This pin is the chip select input connecting to the MCU. The chip is enabled for MCU communication only when 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.

This pin is No Connection pins. Nothing should be connected to this pin. This pin should be left open individually.

IREF

Current Reference for Brightness Adjustment
This pin is segment current reference pin. A resistor should be connected between this pin and VSS. Set the current lower than 10uA.

N.C.

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

VDDIO

Power Supply for I/O Pin
It should be matched with the MCU interface voltage level.

VDD

Power Supply for Core Logic Circuit
Power supply pin for core logic operation. A capacitor is required to connect between this pin and VSS

VCI

Power Supply for Operation
VCI must always be equal to or higher than VDD and VDDIO.

VSL

Voltage Output Low Level for SEG Signal
This is segment voltage reference pin.
When external VSL is not used, this pin should be left open.
When external VSL is used, this pin should connect with resistor and diode to ground.

VLSS

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

VCC

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

ESD GND

Ground

기계적 데이터

항목	치수	단위
도트 매트릭스	256 x 64	-
모듈 치수	99.2 × 33.5 × 2.01	mm
활성 영역	87.52 × 21.28	mm
도트 크기	0.312 × 0.303	mm
도트 피치	0.342 × 0.333	mm
디스플레이 모드	패시브 매트릭스
디스플레이 색상	Monochrome
Drive Duty	1/64 Duty
그레이스케일	4 bits
IC	SSD1322
인터페이스	6800, 8080, SPI
크기	3.55 인치

절대 최대 정격값

Parameter	기호	최소값	최대값	단위
Supply Voltage for Logic	VDD	-0.5	2.75	V
Low voltage power supply	VCI	-0.3	4	V
Supply Voltage for I/O Pins	VDDIO	-0.5	VCI	V
Supply Voltage for Display	VCC	-0.5	20	V
작동 온도	TOP	-40	80	°C
보관 온도	TSTG	-40	85	°C

전기적 특성

항목	기호	조건	최소값	대표값	최대값	단위
Low Voltage power supply	VCI	－	3.1	3.3	3.5	V
Supply Voltage for Display	VCC	－	15.5	16.0	16.5	V
Logic supply voltage	VDD	－	2.4	－	2.6	V
Power for I/O pins	VDDIO	－	1.65		VCI	V
High Level Input	VIH	－	0.8×VDDIO	－	VDDIO	V
Low Level Input	VIL	－	0	－	0.2×VDDIO	V
High Level Output	VOH	－	0.9×VDDIO	－	VDDIO	V
Low Level Output	VOL	－	0	－	0.1×VDDIO	V
50% Check Board operating Current		VCC =16 V	-	35	55	mA