WEO025664D 3.55 寸 256x64 绘图型 OLED 显示屏模块 (SSD1322)

3.55 寸 256x64 绘图型 OLED 显示屏模块 (SSD1322)

型号 WEO025664D

►类型:图形OLED
►结构:COG
►尺寸:3.55寸
►256×64点阵
►IC：SSD1322
►3V电源电压
►1/64 duty cycle
►接口:6800, 8080, SPI
►发光颜色: 白色 / 黄色
►支持灰度

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产品叙述

WEO025664D 为一款 3.55 寸 COG 结构的绘图型 OLED 显示屏模块，采用 256×64 点矩阵配置，内置 SSD1322 控制器 IC。此产品支持 4-bit（16 阶）灰阶显示，并提供多种主机接口，包括 6800/8080 平行接口以及 3 线/4 线 SPI。OLED 具备高对比度与广视角，可在不同环境光线下维持良好可读性。

此型号的逻辑电源为 3.3V，显示驱动电压为 16V，50% 显示画面耗电为 35mA@16Vcc（typical），模块采用 1/64 duty 驱动方式。

WEO025664D 适用于需要长期稳定显示效果的设备，包括医疗设备、控制面板、自助结账机、售票机与停车收费系统等。其操作温度范围为 –40°C 至 +80°C，储存温度范围为 –40°C 至 +85°C。

规格图

WEO025664D 3.55-inch 256x64 Graphic OLED Display Module (SSD1322)

Data source ref: WEO025664DWPP3N00001

产品规格

规格说明

项目	规格	单位
分辨率	256 x 64	-
模块尺寸	99.2 × 33.5 × 2.01	mm
有效区域	87.52 × 21.28	mm
像素大小	0.312 × 0.303	mm
像素间距	0.342 × 0.333	mm
显示模式	被动矩阵
显示颜色	单色
灰阶	4 bits
驱动方式	1/64 Duty
IC	SSD1322
接口	6800, 8080, SPI
尺寸	3.55寸

最大绝对额定值

参数	符号	最小值	最大值	单位
逻辑电源电压	VDD	-0.5	2.75	V
低压电源	VCI	-0.3	4.0	V
I / O 引脚的电源电压	VDDIO	-0.5	VCI	V
显示电源电压	VCC	-0.5	20	V
工作温度	TOP	-40	80	°C
储存温度	TSTG	-40	85	°C

电气特性

项目	符号	条件	最小值	典型值	最大值	单位
低电源	VCI	－	2.4	3.3	3.5	V
低压电源	VCC	－	10.0	16.0	16.5	V
逻辑电源电压	VDD	－	2.4	－	2.6	V
I / O引脚的电源	VDDIO	－	1.65		VCI	V
输入高电压	VIH	－	0.8×VDDIO	－	VDDIO	V
输入低电压	VIL	－	0	－	0.2×VDDIO	V
输出高电压	VOH	－	0.9×VDDIO	－	VDDIO	V
输出低电压	VOL	－	0	－	0.1×VDDIO	V
Display 50% Pixel on	VCC =16 V	－	-	35	55	mA

Pin功能定义

Pin Number

符号

I/O

功能说明

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