English
LCD 3.5 Inch SPI Spec
Technical Parameter
| Item | Specification |
|---|---|
| Product Name | 3.5″ TFT Display Module + Capacitive Touch Panel |
| Display Type | Normally White, Transmissive |
| Resolution | 320 × RGB × 480 dots |
| Color Format | RGB565 |
| Interface Type | 3-wire SPI / 4-wire SPI / MCU 8-bit Parallel / MCU 16-bit Parallel |
| Viewing Direction | 12 o’clock |
| LCD Driver IC | ILI9488 (Ilitek) / ST7796U (Sitronix) |
| Capacitive Touch Controller | GT911 (Goodix) |
| Maximum Touch Points | 5 Points |
| LCD Module Dimensions | 55.26 (W) × 84.52 (L) × 2.70 (T) mm |
| LCD + Resistive Touch Dimensions | 55.26 (W) × 84.52 (L) × 4.00 (T) mm |
| LCD + Capacitive Touch Dimensions | 55.26 (W) × 84.52 (L) × 4.13 (T) mm |
Dimension
Display only or display with resistive touch
Display+ Capacitive Touch
Display Pin Definition
| Pin No. | Pin Name | Description |
|---|---|---|
| 1-4 | NC | No connection |
| 5 | GND | Ground |
| 6 | VDDI | Display I/O interface power supply, 1.8V-3.3V |
| 7 | VDD | Display analog power supply, 2.8V-3.3V |
| 8 | TE | Tearing Effect synchronization signal, used for frame synchronization; leave unconnected if unused |
| 9 | CSX / SPI_CS | Chip Select (active low) |
| 10 | DCX / SPI_DC | Data/Command selection pin. DCX=1: Display data or register parameter. DCX=0: Command register selection. |
| 11 | WRX / SPI_SCLK | Parallel interface: Write Enable signal. SPI interface: Serial Clock signal. |
| 12 | RDX | Parallel interface read enable signal; connect to VDDI or GND if unused |
| 13 | SPI_MOSI | SPI serial data input (SDI) |
| 14 | SPI_MISO | SPI serial data output (SDO); leave floating if unused |
| 15 | RESET | Display reset input, active low |
| 16 | GND | Ground |
| 17-32 | DB0-DB15 | Data bus (16-bit parallel data lines) |
| 33 | LED-A | Backlight anode. Operating voltage: 3.0V-3.3V, typical 3.1V |
| 34-36 | LED-K | Backlight cathode. May be connected to GND through a current-limiting resistor if brightness control is not required |
| 37 | GND | Ground |
| 38 | IM0 | Interface mode selection |
| 39 | IM1 | Interface mode selection |
| 40 | IM2 | Interface mode selection |
Display + Resistive Touch Pin Definition (Resistive touch version)
| Pin No. | Pin Name | Description |
|---|---|---|
| 1 | XL (X-) | Resistive touch panel X- electrode |
| 2 | YU (Y-) | Resistive touch panel Y- electrode |
| 3 | XR (X+) | Resistive touch panel X+ electrode |
| 4 | YD (Y+) | Resistive touch panel Y+ electrode |
| 5 | GND | Ground |
| 6 | VDDI | Display I/O interface power supply, 1.8V to 3.3V |
| 7 | VDD | Display analog power supply, 2.8V to 3.3V |
| 8 | TE | Tearing Effect synchronization signal used for display refresh synchronization. Leave unconnected if unused. |
| 9 | CSX / SPI_CS | Display driver chip select, active low |
| 10 | DCX / SPI_DC | Command/Data select pin. DCX=1: Display data or register parameter. DCX=0: Command register selection. |
| 11 | WRX / SPI_SCLK | Parallel mode: Write Enable signal. SPI mode: Serial Clock (SCLK). |
| 12 | RDX | Parallel interface Read Enable signal. Connect to VDDI or GND if unused. |
| 13 | SPI_MOSI | SPI serial data input (SDI) |
| 14 | SPI_MISO | SPI serial data output (SDO). Leave floating if unused. |
| 15 | RESET | Display reset input, active low |
| 16 | GND | Ground |
| 17-32 | DB0-DB15 | Parallel data bus |
| 33 | LED-A | Backlight anode. Operating voltage: 3.0V-3.3V, typical 3.1V |
| 34-36 | LED-K | Backlight cathode. Can be connected to GND via a current-limiting resistor if brightness control is not required. |
| 37 | GND | Ground |
| 38 | IM0 | Interface mode selection |
| 39 | IM1 | Interface mode selection |
| 40 | IM2 | Interface mode selection |
Capacitive Touch Panel Pin Definition
| Pin No. | Pin Name | Description |
|---|---|---|
| 1 | VDD_3.3V | Capacitive touch controller power supply (3.3V) |
| 2 | RST | Capacitive touch controller reset signal |
| 3 | INT_3.3V | Capacitive touch controller interrupt signal |
| 4 | NC | No Connection |
| 5 | NC | No Connection |
| 6 | SCL | Capacitive touch controller I²C_SCL clock signal |
| 7 | SDA | Capacitive touch controller I²C_SDA data signal |
| 8 | GND | Ground |