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製品情報
WEX025664Bは、解像度256×64ドットの3.12インチCOF構造グラフィックOLEDディスプレイです。SSD1322ドライバICを搭載し、6800/8080 8ビットパラレルおよび3線/4線SPIインターフェースに対応しています。外形寸法は88.0 × 27.8 mm、表示エリアは76.778 × 19.178 mmです。
本ディスプレイは4ビットグレースケール表示に対応し、ロジック電圧は2.5V（typ.）、1/64デューティ駆動を採用しています。コントラスト比10,000:1を有し、動作温度範囲は-40℃～+80℃、保存温度範囲は-40℃～+85℃です。
WEX025664Bシリーズは、グレースケール表示に対応したコンパクトなモノクロOLEDディスプレイを必要とする用途に適しており、計測機器、携帯型機器、POSシステム、IoT機器、通信機器、医療機器などに使用可能です。構造やタッチ機能の違いに応じて、以下の関連モデルも選択可能です。
- WEX025664B-CTP：CTPタッチパネル搭載（メタルフレームおよびPCBなし）
- WEN025664B：メタルフレームおよびPCB付き
- WEN025664B-CTP：メタルフレーム、PCB、CTPタッチパネル搭載
外形図
Data source ref: WEX025664BWPP3N00000
製品仕様
規格説明
| 項目 | 仕様 | 単位 |
|---|---|---|
| ドットマトリックス | 256 x 64 Dots | － |
| モジュールサイズ | 88.0 × 27.8 × 2.15 | mm |
| アクティブエリア | 76.778×19.178 | mm |
| ピクセルサイズ | 0.278×0.278 | mm |
| ピクセルピッチ | 0.3×0.3 | mm |
| 表示モード | パッシブマトリクス | |
| 発光色 | モノクロ | |
| 駆動方法 | 1/64 Duty | |
| グレースケール | 4 bits | |
| IC | SSD1322 (COF) | |
| インターフェイス | 6800, 8080, SPI | |
| サイズ | 3.12 インチ | |
絶対最大定格
| パラメーター | 記号 | 最小値 | 最大値 | 単位 |
|---|---|---|---|---|
| 操作電源電圧 | VCI | -0.3 | 4 | V |
| ロジック電源電圧 | VDD | -0.5 | 2.75 | V |
| I/O Pins 電源電圧 | VDDIO | -0.5 | VCI | V |
| Display電源電圧 | VCC | -0.5 | 20 | V |
| 操作温度 | TOP | -40 | 80 | °C |
| 保存温度 | TSTG | -40 | 85 | °C |
電気特性
| 項目 | 記号 | 条件 | 最小値 | 典型値 | 最大値 | 単位 |
|---|---|---|---|---|---|---|
| ロジック電源電圧 | VDD | － | 2.4 | 2.5 | 2.6 | V |
| I / Oピンの電源 | VDDIO | － | 1.65 | 3.0 | VCI | V |
| 低電圧電源 | VCI | － | 2.4 | 3.0 | 3.5 | V |
| Display電源電圧 | VCC | － | 11.5 | 14.5 | 15 | V |
| 高レベル入力 | VIH | － | 0.8×VDDIO | － | VDDIO | V |
| 低レベル入力 | VIL | － | 0 | － | 0.2×VDDIO | V |
| 高レベル出力 | VOH | － | 0.9×VDDIO | － | VDDIO | V |
| 低レベル出力 | VOL | － | 0 | － | 0.1×VDDIO | V |
| 50% チェックボード動作電流 | ICC | VCC =12V | － | 24 | 32 | mA |
| VCC =14.5V | － | 32 | 42.5 | mA |
ピン功能定義
| Pin Number | 記号 | I/O | 説明 | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | N.C. (GND) | P | Ground | ||||||||||
| 2 | VSS | P | Ground. | ||||||||||
| 3 | VCC | P | Power supply for panel driving voltage. This is also the most positive power voltage supply pin. |
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| 4 | VCOMH | P | COM signal deselected voltage level. A capacitor should be connected between this pin and VSS. |
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| 5 | VLSS | P | 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. |
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| 14 | E/RD# | I | 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. |
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| 15 | R/W# | I | 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. |
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| 16 | BS0 | I | Communicating Protocol Select These pins are MCU interface selection input. See the following table:
(1) 0 is connected to VSS (2) 1 is connected to VDDIO |
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| 17 | BS1 | ||||||||||||
| 18 | D/C# | I | 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. |
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| 19 | CS# | I | 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. |
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| 20 | RES# | I | 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. |
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| 21 | FR | O | This pin is No Connection pins. Nothing should be connected to this pin. This pin should be left open individually. | ||||||||||
| 22 | IREF | I | 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. |
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| 23 | N.C. | - | Reserved Pin The N.C. pin between function pins are reserved for compatible and flexible design. |
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| 24 | VDDIO | P | Power Supply for I/O Pin It should be matched with the MCU interface voltage level. |
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| 25 | VDD | P | Power Supply for Core Logic Circuit Power supply pin for core logic operation. A capacitor is required to connect between this pin and VSS |
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| 26 | VCI | P | Power Supply for Operation VCI must always be equal to or higher than VDD and VDDIO. |
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| 27 | VSL | P | 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. |
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| 28 | VLSS | P | Ground of Analog Circuit These are the analog ground pins. They should be connected to VSS externally. |
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| 29 | VCC | P | Power Supply for OLED Panel These are the most positive voltage supply pin of the chip. They must be connected to external source. |
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| 30 | N.C. (GND) | P | Ground |