WEO025664E 3.55 吋 256×64 繪圖型 OLED 顯示器，支援多介面選項(含 I2C，SSD1363)

3.55 吋 256×64 繪圖型 OLED 顯示器，支援多介面選項(含 I2C，SSD1363)

型號 WEO025664E

►類型: 繪圖型
►結構: COG
►尺寸: 3.55"
►256x64 點陣
►IC：SSD1363
►3V電源電壓
►1/64 duty cycle
►介面: 6800, 8080, SPI, I2C
►發光顏色: 白色
►支援灰階

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產品敘述

WEO025664E 是一款 3.55 吋 COG 結構的繪圖型 OLED 顯示器，採用 256x64 點矩陣，並搭載 SSD1363 控制器 IC。此產品支援 4-bit（16 階）灰階顯示，並提供多種介面選擇：6800/8080 並列介面、3 線/4 線 SPI 介面及 I2C 介面。I2C 介面的加入，為設計需求簡單通信與低功耗的應用提供了更多靈活性。

相比之下，WEO025664D 使用 SSD1322 控制器 IC，僅支援 6800/8080 並列及 SPI 介面，不支援 I2C。兩款產品的顯示解析度與物理尺寸相同，但 WEO025664E 更適合需要多介面選擇的應用。

兩款產品均具有高對比度、廣視角以及 1/64 duty 驅動方案以達到高效能電源管理。WEO025664E 以 3.3V 邏輯電壓與 16V 顯示驅動電壓運行，典型耗電為 35mA（50% 檢查板圖案，VCC=16V）。

WEO025664E 設計適用於長期穩定顯示的應用，例如醫療設備、控制面板及自助結帳系統等。其操作溫度範圍為 -40°C 至 +80°C，儲存溫度範圍為 -40°C 至 +85°C。

規格圖

WEO025664E 3.55-inch 256x64 Graphic OLED Display Module (SSD1363)

Data source ref: WEO025664EWPP3N00000

產品規格

規格說明

項目	規格	單位
點陣	256 x 64 Dots	-
模組尺寸	99.2 × 33.5 × 2.01	mm
有效區域	87.52 × 21.28	mm
像素大小	0.312 × 0.303	mm
像素間距	0.342 × 0.333	mm
顯示模式	被動矩陣
顯示顏色	單色
驅動方式	1/64 Duty
灰階	4 bits
IC	SSD1363
介面	6800,8080,4-Wire SPI,I2C
尺寸	3.55吋

最大絕對額定值

參數	符號	最小值	最大值	單位
供電電壓	VDD	-0.3	4.0	V
供電電壓	VCC	-0.5	19.0	V
工作溫度	TOP	-40	80	°C
儲存溫度	TSTG	-40	85	°C

電氣特性

DC 電氣特性

項目	符號	條件	最小值	典型值	最大值	單位
低壓電源，輸入 / 輸出 Pin 電源	VDD	－	1.65	3.0	3.3	V
工作電壓	VCC	－	8.0	16.0	16.5	V
輸入高電壓	VIH	－	0.8×VDD	－	VDD	V
輸入低電壓	VIL	－	0	－	0.2×VDD	V
輸出高電壓	VOH	－	0.9×VDD	－	VDD	V
輸出低電壓	VOL	－	0	－	0.1×VDD	V
顯示器 50% 像素開啟	ICC	VCC =16V	－	30	45	mA

Pin功能定義

Pin Number

符號

功能說明

ESD_GND

ESD Ground pin

VSS

Ground pin. It must be connected to external ground.

VCC

Power supply for panel driving voltage. This is also the most positive power voltage supply pin.
A capacitor should be connected between this pin and VSS.

VCOMH

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

VLSS

Analog system ground pin. It must be connected to external ground.

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, D2, D1 should be tied together as the serial data input: SDIN, and D0 will be the serial clock input: SCLK.
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.

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.

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.

BS1

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

	8080	I2C	6800	4-wire SPI
BS1	1	1	0	0
BS2	1	0	1	0

Note:
(1) 0 is connected to VSS
(2) 1 is connected to VDD

BS2

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.

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).

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 outputs RAM write synchronization signal. Proper timing between MCU data writing and frame display timing can be achieved to prevent tearing effect.
It should be kept NC if it is not used.

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 the current around 10uA.
It should be kept floating when internal IREF is chosen by command setting.

23~24

This is dummy pin. It should be kept NC.

This pin is the segment pre-charge voltage reference pin.
A capacitor can be connected between this pin and VSS to improve visual performance. It can also be float per application.
No external power supply is allowed to connect to this pin.

VDD

Power supply pin for core logic operation. A capacitor should be connected between this pin and VSS.

VSL

This is segment voltage (output low level) reference pin.
This pin has to be connected with resistor and diode to ground (details depends on application).