產品敘述
WF28JTYAJDNF0 是一款2.8吋直屏模式TFT顯示模組搭載投射電容式觸控(PCAP),該解析度為240x320像素,亮度為400 nits(典型值)。此模組內建ILI9341 driver IC,支援MCU 或 SPI介面。WF28JTYAJDNF0擁有50.0 x 69.7mm模組尺寸,有效區域(AA)為43.2 x 57.6 mm。此顯示器的供電電源電壓為1.65V to 3.3V。投射電容式觸控螢幕整合了FT6336G IC,支援I2C介面和一指觸控。此型號的工作溫度是-20℃至+70℃,儲存溫度為-30℃至+80℃。
WF28JTYAJDNF0模組搭載IPS技術,能提供更寬的可視角度:左80/右80/上80/下80度(典型值)。TFT 顯示器中的 IPS 面板可提供更寬的視角、準確一致的色彩再現、卓越的影像品質、精確的觸控螢幕效能和一致的色溫。IPS TFT-LCD 顯示器的多功能性使其適用於各種應用,包括消費性電子產品、醫療顯示器和工業控制面板。
規格圖
產品規格
Pin功能定義
LCM PIN 定義
NO | 符號 | 功能 | I/O | ||||||||||||||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1 | GND | Ground | P | ||||||||||||||||||||||||||||||||||||||||||||
2-6 | NC | No connection | - | ||||||||||||||||||||||||||||||||||||||||||||
7 | VCI | High voltage power supply for analog circuit blocks (2.5 ~ 3.3 V) |
P | ||||||||||||||||||||||||||||||||||||||||||||
8 | IOVCC | Low voltage power supply for interface logic circuits (2.5 ~ 3.3 V) |
P | ||||||||||||||||||||||||||||||||||||||||||||
9 | TE | Tearing effect output pin to synchronize MPU to frame writing, activated by S/W command. When this pin is not activated, this pin is low. If not used, open this pin. |
O | ||||||||||||||||||||||||||||||||||||||||||||
10 | CS | Chip select signal. | I | ||||||||||||||||||||||||||||||||||||||||||||
11 | D/CX(SCL) | (D/CX): This pin is used to select "Data or Command" in the parallel interface. When DCX = 1, data is selected. When DCX = 0, command is selected. (SCL): This pin is used as the serial interface clock in 3-wire 9-bit/4-wire 8-bit serial data interface. If not used, this pin should be connected to IOVCC or GND. |
I | ||||||||||||||||||||||||||||||||||||||||||||
12 | WR(SPI_D/C) | (WRX) - 8080-Ⅰ/8080-Ⅱ system: Serves as a write signal and writes data at the rising edge. (D/CX) - 4-line system: Serves as the selector of command or parameter. Fix to IOVCC level when not in use. |
I | ||||||||||||||||||||||||||||||||||||||||||||
13 | RD | 8080-Ⅰ/8080-Ⅱ system (RDX): Serves as a read signal and MCU read data at the rising edge. Fix to IOVCC level when not in use. |
I | ||||||||||||||||||||||||||||||||||||||||||||
14-29 | DB0~DB15 | 18-bit parallel bi-directional data bus for MCU system. Fix to GND level when not in use. |
I/O | ||||||||||||||||||||||||||||||||||||||||||||
30 | RESET | (RESX)This signal will reset the device and must be applied to properly initialize the chip. Signal is active low. |
I | ||||||||||||||||||||||||||||||||||||||||||||
31 | IM0 | Select the MCU interface mode
MPU Parallel interface bus and serial interface select If use RGB Interface must select serial interface. * : Fix this pin at IOVCC or GND. |
I | ||||||||||||||||||||||||||||||||||||||||||||
32 | IM1 | ||||||||||||||||||||||||||||||||||||||||||||||
33 | IM2 | ||||||||||||||||||||||||||||||||||||||||||||||
34 | DB16 | 18-bit parallel bi-directional data bus for MCU system and RGB interface mode Fix to GND level when not in use. |
I/O | ||||||||||||||||||||||||||||||||||||||||||||
35 | DB17 | ||||||||||||||||||||||||||||||||||||||||||||||
36 | LEDK | Cathode of LED backlight. | P | ||||||||||||||||||||||||||||||||||||||||||||
37 | LEDK | Cathode of LED backlight. | P | ||||||||||||||||||||||||||||||||||||||||||||
38 | LEDA | Anode of LED backlight. | P | ||||||||||||||||||||||||||||||||||||||||||||
39 | SDA | SDA : Serial in/out signal. The data is applied on the rising edge of the SCL signal. If not used, fix this pin at IOVCC or GND. |
I/O | ||||||||||||||||||||||||||||||||||||||||||||
40 | NC | Not used, open this pin | N |
PCAP PIN 定義
Pin | 符號 | 功能 |
---|---|---|
1 | VSS | Ground for analog circuit |
2 | VDDT | Power Supply : +3.3V |
3 | SCL | I2C clock input |
4 | NC | No connect |
5 | SDA | I2C data input and output |
6 | NC | No connect |
7 | /RST | External Reset, Low is active |
8 | NC | No connect |
9 | /INT | External interrupt to the host |
10 | VSS | Ground for analog circuit |
規格說明
項目 | 規格 | 單位 |
---|---|---|
尺寸 (對角線) | 2.8 | 吋 |
解析度 | 240 x RGB x 320(TFT) | dots |
模組尺寸 | 50.5(W) x 69.7(H) x5.67(D) | mm |
有效區域 (AA) | 43.2 x 57.6 | mm |
點間距 | 0.18 x 0.18 | mm |
LCD類型 | TFT, 平常黑, 透射式 | |
TFT 驅動 IC | ILI9341V 或相容IC | |
TFT 介面 | MCU/SPI | |
視角 | 80/80/80/80 | |
長寬比 | 3:4 | |
背光類型 | LED ,平常白 | |
PCAP IC | FT6336G 或相容IC | |
PCAP 介面 | I2C | |
PCAP FW | 0x11 | |
觸控面板 | 投射電容式觸控面板 (PCAP) | |
表面 | 亮面 |
最大絕對額定值
項目 | 符號 | 最小值 | 典型值 | Max | 單位 |
---|---|---|---|---|---|
工作溫度 | TOP | -20 | - | +70 | ℃ |
儲存溫度 | TST | -30 | - | +80 | ℃ |
電氣特性
工作條件
項目 | 符號 | 條件 | 最小值 | 典型值 | 最大值 | 單位 |
---|---|---|---|---|---|---|
數字電源電壓 | IOVCC | - | 1.65 | - | 3.3 | V |
模擬電源電壓 | VCI | - | 2.5 | - | 3.3 | V |
觸摸邏輯的電源電壓 | VDDT | - | 3.0 | 3.3 | 3.6 | V |
電流電源 | ICC | IOVCC=VCI =VCC=3.0V |
- | 13 | 20 | mA |
LED驅動條件
參數 | 符號 | 最小值 | 典型值 | 最大值 | 單位 |
---|---|---|---|---|---|
LED 電流 | - | - | 80 | - | mA |
LED 電壓 | LEDA | 8.1 | 9.3 | 10.5 | V |
LED 使用壽命 | - | 50000 | - | - | Hr |