2.8 Inch IPS 480x480 Round TFT LCD Touch Screen Display Module ST7701S Industrial Grade Operating Temp. -20°C to 70°C
Premium 2.8" Circular IPS TFT Display with Integrated Touch
Designed for industrial and commercial applications, Saef Technology’s SFTO280XC-7333A-CT combines a high-resolution 480x480 circular IPS panel with robust capacitive touch technology. Ideal for smart devices, medical equipment, and automotive interfaces where round displays excel.
Key Technical Features:
- Crisp Visuals: 262K colors, 1200:1 contrast ratio, and 300 cd/m² brightness ensure readability in diverse lighting.
- Wide Temperature Range: Operates reliably from -20°C to +70°C (-4°F to 158°F) – certified for industrial environments.
- Advanced Touch: 6H-hardened glass with CST836U controller supports 10-point touch and glove operation.
- Seamless Integration: 3SPI + 18-bit RGB interface with ST7701S driver IC for plug-and-play compatibility.
- Durability: IP-rated sealing (optional), shock-resistant design, and 20K-hour LED backlight lifespan.
Certified & Reliable
- Complies with RoHS/REACH EU standards
- ISO9001:2015 & ISO14001:2015 certified
- ESD protection (±4KV)
Ideal For:
• Industrial HMIs • Wearable Tech • Automotive Gauges • Smart Home Controls • Medical Devices
Warranty: 1-year functional guarantee with lifetime technical support. Includes burn-in prevention guidance for static images.
General Specifications
| Item | Specification | Unit |
| LCD size | 2.76 | inch |
| Display Mode | Normally Black | -- |
| Resolution | 480(RGB)x480 | Pixel |
| Pixel pitch | 0.1461*RGB*0.1461 | mm |
| Pixel Arrangement | RGB Vertical Stripe | |
| Viewing direction | IPS | - |
| Module outline dimension | 78(H)*78(V)*3.87(D) | mm |
| LCD AA | 70.13x70.13 | mm |
| TP VA | 70.53x70.53 | mm |
| Colors | 262K | - |
| Driver IC | ST7701S | - |
| Driver IC RAM Size | - | - |
| Interface | 3SPI+18RGB | -- |
| Backlight | White LED | -- |
| Touch IC | CST836U | -- |
| Surface hardness | ≥6H | -- |
| Touch structure | G+F | -- |
| Cover lens | Glass | -- |
| Color | Black | -- |
| Operating Temperature | -20℃~ +70℃ | -- |
| Storage Temperature | -30℃~ +80℃ | -- |
Mechanical Outline Dimensions
Pin Assignment
| PIN | Symbol | Description |
| 1 | LEDA | LED ANODE |
| 2 | LEDK | LED CATHODE |
| 3 | LEDK | LED CATHODE |
| 4 | GND | Ground |
| 5 | VCI | LCD analog power supply (3.3V) |
| 6 | RESET | Reset Signal |
| 7 | NC | Not connect |
| 8 | NC | Not connect |
| 9 | SDA | SPI Data signal |
| 10 | SCK | SPI Clock signal |
| 11 | CS | SPI Chip select signal |
| 12 | PCLK | RGB dot clock signal |
| 13 | DE | RGB data enable signal |
| 14 | VSYNC | RGB frame synchronizing signal |
| 15 | HSYNC | RGB line synchronizing signal |
| 16-33 | DB0-DB17 | RGB data(B2-B7,G2-G7,R2-R7) |
| 34 | GND | Ground |
| 35 | TP_INT | Touch Interrupt |
| 36 | TP_SDA | Touch IIC Data signal |
| 37 | TP_SCL | Touch IIC Clock signal |
| 38 | TP_RESET | Touch Reset Signal |
| 39 | TP_VCI | Touch Power supply |
| 40 | TP_GND | Touch Ground |
Absolute Maximum Ratings
| Item | Symbol | Min. | Max. | Unit |
|
Power Voltage |
VCI | -0.30 | +3.3 | V |
| IOVCC | -0.30 | +2.5 | V | |
| TP_VCI | / | / | V | |
| TP_IOVCC | / | / | V | |
| Operating Temperature | Top | -20.0 | 70.0 | ℃ |
| Storage Temperature | Tst | -30.0 | 80.0 | ℃ |
|
Operating and Storage Humidity |
Hstg | 10% | 90% | %(RH) |
Electrical Characteristics
| Item | Symbol | Min. | TYP. | Max. | Unit | |
| Digital supply Voltage | IOVCC | 1.65 | 1.8 | 1.95 | V | |
|
Analog supply Voltage |
VCI | 2.5 | 2.8 | 3.3 | V | |
| TP Power | TP_VCI | / | / | / | V | |
| TP Power | TP_IOVCC | / | / | / | V | |
| Input Signal Voltage |
Low Level |
VIL | 0 | - |
0.3 x IOVCC |
V |
|
High Level |
VIH |
0.7 x IOVCC |
- | IOVCC | V | |
|
Current of digital supply voltage |
IIOVCC | - | 20 | 35 | Ma | |
| Current of analog supply voltage | IVCI | - | 35 | 50 | Ma | |
Backlight Unit Driving Condition
| Item | Symbol | Min. | TYP. | Max. | Unit |
| Forward Current | IF | - | 80 | - | Ma |
| Forward Current Voltage | VF | 2.8 | 2.9 | - | V |
|
Backlight Power Consumption |
WBL | 224 | 232 | - | mW |
| Operating Life Time | -- | 30000 | 40000 | -- | hrs |
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