2.8 inch 240x320 Sunlight Readable TFT IPS LCD
Model No. WF28JSYAJDNN0
►Size: 2.8"
►Resolution: 240×320 dots
►View Direction: IPS
►Interface: MCU, SPI
►TFT Driver IC: ILI9341
►Control-Board: No
►Brightness(cd/m²): 1000
►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). WF28JSYAJDNN0 is a high brightness version which is having brightness 1000 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 (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 |
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=3.0V |
- | 13 | 20 | mA |
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