2.8 inch 240x320 TFT IPS LCD Display
Model No. WF28JTYAJDNN0
►Size: 2.8"
►Resolution: 240×320 dots
►View Direction: IPS
►Interface: MCU, SPI
►TFT Driver IC: ILI9341
►Control-Board: No
►Brightness(cd/m²): 500
►Frame Through Hole: No
►Touch Screen: Without Touch Screen
DESCRIPTION
WF28J is a 2.8 inch wider view angle IPS TFT LCD module, with resolution 240x320 pixels. WF28J module is a portrait mode IPS TFT-LCD; this module is built in with ILI9341 controller IC; it supports MCU 8-bit/16-bit or SPI interface, contrast ratio 800 (typical value). The brightness of WF28JTYAJDNN0 is 500 nits (typical value). This 2.8” IPS TFT has a wider viewing angle than TN TFT, the view angle is Left:80 / Right:80 / Up:80 / Down:80 degree (typical value). The supply voltage for interface logic (IOVCC) of WF28J model is from 1.65V to 3.3V, supply for analog circuit is from 2.5V ~3.3V, normally black, transmissive LCD type, aspect ratio 3:4, glare surface glass. It can be operating at temperatures from -20℃ to +70℃ and storage temperatures from -30℃ to +80℃.
DRAWING
SPECIFICATIONS
Interface Pin Function
LCM PIN Definition
| NO | Symbol | Function | 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 (1.65 ~ 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 VDDI or VSS. |
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 VDDI 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 VDDI level when not in use. |
I | ||||||||||||||||||||||||||||||||||||||||||||
| 14-29 | DB0~DB15 | 18-bit parallel bi-directional data bus for MCU system and RGB interface mode Fix to VSS level when not in use. |
I/O | ||||||||||||||||||||||||||||||||||||||||||||
| 30 | RESET | 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
If use RGB Interface must select serial interface. * : Fix this pin at VDDI or VSS. |
I | ||||||||||||||||||||||||||||||||||||||||||||
| 32 | IM1 | ||||||||||||||||||||||||||||||||||||||||||||||
| 33 | IM2 | ||||||||||||||||||||||||||||||||||||||||||||||
| 34 | DB16 | 18-bit parallel bi-directional data bus for MCU system and RGB interface mode Fix to VSS 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 | SDI(SDA) | When IM[3] : Low, Serial in/out signal. When IM[3] : High, Serial input signal. The data is applied on the rising edge of the SCL signal. If not used, fix this pin at VDDI or VSS. |
I/O | ||||||||||||||||||||||||||||||||||||||||||||
| 40 | SDO | Serial output signal. The data is outputted on the falling edge of the SCL signal. If not used, open this pin |
O | ||||||||||||||||||||||||||||||||||||||||||||
General Specifications
| Item | Dimension | Unit |
|---|---|---|
| Size | 2.8 | inch |
| Dot Matrix | 240 x RGB x 320(TFT) | dots |
| Module dimension | 50.5(W) x 69.7(H) x 4.55(D) | mm |
| Active area | 43.2 x 57.6 | mm |
| Dot pitch | 0.18 x 0.18 | mm |
| LCD type | TFT, Normally Black, Transmissive | |
| TFT Driver IC | ILI9341V or equivalent | |
| TFT Interface | MCU/SPI | |
| Viewing angle | 80/80/80/80 | |
| Aspect Ratio | 3:4 | |
| Backlight Type | LED,Normally White | |
| Touch Panel | Without Touch Panel | |
| Surface | Glare | |
Absolute Maximum Ratings
| Item | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Operating Temperature | TOP | -20 | － | +70 | ℃ |
| Storage Temperature | TST | -30 | － | +80 | ℃ |
Electrical Characteristics
| Item | Symbol | Condition | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Supply Voltage for digital | IOVCC | － | 1.65 | － | 3.3 | V |
| Supply Voltage for analog | VCI | － | 2.5 | － | 3.3 | V |
| Power Supply for Current | ICC | IOVCC=VCI =VCC=3.28V |
－ | 12 | 18 | mA |
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