Description
3.5-Inch QVGA 320×240 Landscape RGB LCD with PCAP Capacitive Touch Screen HX8238 54 Pin
The SHENZHEN TECHSTAR ELECTRONICS INCORPORATED CO., LTD SF-TO350M-8840A-CT presents a 3.5-inch LCD Cell featuring thin film transistors as active elements and comprising pixels. This model consists of a singular 3.5-inch (4:3 aspect ratio) transmissive type primary TN-LCD panel. With a resolution of 320(RGB) x 240 pixels, it can exhibit up to 16.7 million colors.
The SF-TO350M-8840A-CT comes equipped with a PCAP touch screen with an OCA attached, utilizing a G+G structure. While the TFT LCD module supports an RGB interface, the touch screen operates on an IIC interface.
Applications:
The SF-TO350M-8840A-CT TFT LCD module finds extensive utility across various domains including black boxes, smart devices, mobile POS systems, cash readers, GPS handheld devices, handheld food ordering machines, signal analyzers, benchtop laboratory equipment, security systems, home automation systems, mini audio players, baby monitors, and other handheld devices.
Product Features:
| Product: | 3.5″ QVGA RGB TFT LCD |
|---|---|
| Resolution: | 320X240 Dots |
| Touch Screen: | With PCAP Touch Screen |
| Cover Lens: | Customizable |
| Viewing Direction: | 6 O’clock |
| Interface: | RGB Interface |
| Outline Dim.: | 76.9×63.9×4.65 mm |
| Pin Number: | 54 Pins |
| Connection: | Plugging |
| Operating Temp.: | -20℃ To +70℃ |
| Surface Luminance: | 3200 Cd/m2 |
| Compliance: | REACH & RoHS Compliant |
3.5″ PCAP TFT Display 320×240 RGB Interface Product Drawing
Interface Pin Definition
| NO. | PIN NAME | I/O | Description |
| 1 | LED-K1 | I | LED Cathode |
| 2 | LED-K2 | I | LED Cathode Connect to LED-K1 |
| 3 | LED-A1 | I | LED Anode |
| 4 | LED-A2 | I | LED Anode  Connect to LED-A1 |
| 5-7 | NC | – | No Connection |
| 8 | /RESET | I | Reset Pin |
| 9 | CS | I | Input pin for chip selection signal |
| 10 | SCL | I | SPI Clock Signal |
| 11 | SDI | I | SPI Interface Input Pin |
| 12 | B0 | I | BLUE Data Signal(LSB) |
| 13-19 | B1-7 | I | BLUE Data Signal |
| 20 | G0 | I | GREEN Data Signal(LSB) |
| 21-27 | G1-7 | I | GREEN Data Signal |
| 28 | R0 | I | RED Data Signal (LSB) |
| 29-35 | R1-7 | I | RED Data Signal |
| 36 | HSYNC | I | Horizontal Synchronizing Signal |
| 37 | VSYNC | I | Vertical Synchronizing Signal |
| 38 | DOTCLK | I | Clock Signal to Sample each date |
| 39-40 | NC | – | No Connection |
| 41 | VDD | I | +2.8V Power Source |
| 42 | VDDIO | I | 1.8V~2.8V Power Source |
| 43 | YU | I | Touch Panel Pin |
| 44 | XL | I | |
| 45 | YD | I | |
| 46 | XR | I | |
| 47-51 | NC | – | Not Connection |
| 52 | ENABLE | I | Input Data enable control |
| 53-54 | GND | I | Power Ground |
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Maximum Absolute Limit
| Item | Symbol | Value | Unit |
| Power supply voltage for logic | VDD | 1.6~3.3 | V |
| Input voltage | Vin | VDD+0.3 | V |
| Operating temperature | Topr | -20 to 70 | °C |
| Storage temperature | Tstg | -30 to 80 | °C |
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Backlight Electrical-optical Characteristics
| Item | Symbol | MIN | TYP | MAX | UNIT | Condition |
| Supply Voltage | Vf | 17.5 | 19.2 | 20.5 | V | If=20mA |
| Supply Current | If | – | 20 | – | mA | – |
| Reverse Voltage | Vr | – | – | 5 | V | – |
| Power dissipation | Pd | – | 288 | – | mW | – |
| Luminous Intensity | 260 | 320 | 350 | Cd/m2 | If=20mA | |
| Uniformity for LCM | – | 80 | – | – | ï¼… | If=20mA |
| Backlight Color | White | |||||
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Reliability Test
| Item | Condition | Time (hrs) | Assessment |
| High temp. Storage | 80°C | 120 |
No abnormalities in functions and appearance |
| High temp. Operating | 70°C | 120 | |
| Low temp. Storage | -30°C | 120 | |
| Low temp. Operating | -20°C | 120 | |
| Humidity | 60°C/ 90%RH | 120 | |
| Thermal Shock Temp. Cycle | -20°C ¬ 25°C ®70°C
(0.5 hour ¬ 5 min ® 0.5 hour) |
10cycles | |
3.5″ PCAP TFT Display 320×240 RGB Interface Product Image
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