产品叙述
WF28JTYAJDNF0 是一款2.8吋直屏模式TFT显示模块搭载投射电容式触控(PCAP)，该分辨率为240x320像素，亮度为400 nits(典型值)。此模块内建ILI9341 driver IC，支持MCU 或 SPI接口。WF28JTYAJDNF0拥有50.0 x 69.7mm模块尺寸，有效区域(AA)为43.2 x 57.6 mm。此显示器的供电电源电压为1.65V to 3.3V。投射电容式触控屏幕整合了FT6336G IC，支持I2C接口和一指触控。此型号的工作温度是-20℃至+70℃，储存温度为-30℃至+80℃。
WF28JTYAJDNF0模块搭载IPS技术，能提供更宽的可视角度：左80/右80/上80/下80度(典型值)。TFT 显示器中的 IPS 面板可提供更宽的视角、准确一致的色彩再现、卓越的影像质量、精确的触控屏幕效能和一致的色温。IPS TFT-LCD 显示器的多功能性使其适用于各种应用，包括消费性电子产品、医疗显示器和工业控制面板。
规格图
产品规格
Pin功能定义
LCM PIN 定义
| NO | 符号 | 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 定义
| Pin | 符号 | 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 |
规格说明
| 项目 | 规格 | 单位 |
|---|---|---|
| 尺寸 (对角线) | 2.8 | 寸 |
| 分辨率 | 240 x RGB x 320(TFT) | dots |
| 模块尺寸 | 50.5(W) x 69.7(H) x5.67(D) | mm |
| 有效区域 (AA) | 43.2 x 57.6 | mm |
| 点间距 | 0.18 x 0.18 | mm |
| LCD类型 | TFT, 平常黑, 透射式 | |
| TFT 驱动 IC | ILI9341V 或相容IC | |
| TFT 接口 | MCU/SPI | |
| 视角 | 80/80/80/80 | |
| 长宽比 | 3:4 | |
| 背光类型 | LED ,平常白 | |
| PCAP IC | FT6336G 或相容IC | |
| PCAP 接口 | I2C | |
| PCAP FW | 0x11 | |
| 触控面板 | 投射电容式触控面板 (PCAP) | |
| 表面 | 亮面 | |
最大绝对额定值
| 项目 | 符号 | 最小值 | 典型值 | Max | 单位 |
|---|---|---|---|---|---|
| 工作温度 | TOP | -20 | － | +70 | ℃ |
| 储存温度 | TST | -30 | － | +80 | ℃ |
电气特性
工作条件
| 项目 | 符号 | 条件 | 最小值 | 典型值 | 最大值 | 单位 |
|---|---|---|---|---|---|---|
| 数字电源电压 | IOVCC | － | 1.65 | － | 3.3 | V |
| 仿真电源电压 | VCI | － | 2.5 | － | 3.3 | V |
| 触摸逻辑的电源电压 | VDDT | － | 3.0 | 3.3 | 3.6 | V |
| 电流电源 | ICC | IOVCC=VCI =VCC=3.0V |
－ | 13 | 20 | mA |
LED驱动条件
| 参数 | 符号 | 最小值 | 典型值 | 最大值 | 单位 |
|---|---|---|---|---|---|
| LED 电流 | － | － | 80 | － | mA |
| LED 电压 | LEDA | 8.1 | 9.3 | 10.5 | V |
| LED 使用寿命 | － | 50000 | － | － | Hr |
