DESCRIPTION
HC-350HS5401 is a 3.5 inch lcd display standard color LCD screen, 320×240 resolution, high-definition picture quality, IPS full-view screen, brightness setting is 500cd/m2, integrated ST7272A driver controller, supports SPI interface/RGB interface/MCU interface, no need for peripheral circuit design, There are two connection methods of welding FPC (optional connector) can be selected, 3.3V power supply method, RTP/CTP touch screen can be selected for TFT LCD screen, and all materials meet RoHS standards. A variety of display interface applications can be realized through motherboard code programming, such as: display menus, charts, tables, animations, pictures, etc. Suitable for medical instrument display, smart home access control display, attendance terminal display, automotive diagnostic instrument display, handheld instrument display and other product applications.
This HC-350HS5401 module has built-in ST7272A controller IC, supports RGB interface, the power supply voltage (VCC) range is 3.0V to 3.6V, the brightness is 480 nits (typ), and the contrast ratio is 800:1. The module is automated , GPS navigator and other industrial ideal choice. The module can operate from -20°C to +70°C; its storage temperature range is -30°C to +80°C
DRAWING
SPECIFICATIONS
General Specifications
| Item | Contents | Unit |
| Size | 3.5 | inch |
| LCM Dimension | 76.84（W）* 63.84（H） * 3.30(T) | mm |
| LCD Active Area | 70.08 * 52.56 | mm |
| Number Of Dots | 320×240 | pixel |
| LCD Type | a-Si TFT | |
| Viewing Direction | IPS LCD | |
| Driver IC | ST7272A | |
| Interface Type | RGB | |
| Operating Temperature | -20℃~ 70℃ | |
| Storage Temperature | -30℃~ 80℃ | |
| Backlight Type | 6 LEDs | |
| Brightness | 480 | cd/m2 |
| Display Mode | Normally Black |
Interface
LCM PIN Definition
| NO. | Symbol | Description |
| 1 | K | BACKLIGHT CATHODE |
| 2 | K | BACKLIGHT CATHODE |
| 3 | A | BACKLIGHT ANODE |
| 4 | A | BACKLIGHT ANODE |
| 5-6 | NC | Not connect |
| 7 | RESET | Reset Pin |
| 8 | CS | Chip select |
| 9 | SCK | Serial clock input |
| 10 | SDI | Serial data input |
| 11 | SDO | Serial data output |
| 12-19 | B0-B7 | Blue data input |
| 20-27 | G0-G7 | Green data input |
| 28-35 | R0-R7 | Red data input |
| 36 | HSYNC | Horizontal sync signal |
| 37 | VSYNC | Vertical sync signal |
| 38 | PCLK | Pixel clock input pin |
| 39-40 | VDDIO | Power Supply for IO |
| 41-42 | VCI | Power Supply |
| 43 | REGVDD | Not connect |
| 44-47 | NC | Not connect |
| 48 | YU | Touch Panel Up (Not connect) |
| 49 | XL | Touch Panel Left (Not connect) |
| 50 | YD | Touch Panel Down (Not connect) |
| 51 | XR | Touch Panel Right (Not connect) |
| 52 | DE | Data input enable |
| 53-54 | GND | Ground |
DC Characteristics
| Item | Symbol | Min | Typ | Max | Unit |
| TFT gate on voltage | VGH | — | 15 | — | V |
| TFT gate off voltage | VGL | — | -10 | — | V |
| TFT common electrode Voltage | Vcom | — | 0 | — | V |
Typical Operation Conditions
| Item | Symbol | Min. | Typ. | Max. | Unit |
| Analog Supply Voltage | VCI | 3.0 | 3.3 | 3.6 | V |
| Digital Supply Voltage | VDD | 3.0 | 3.3 | 3.6 | V |
| I/O Supply Voltage | IOVCC | 3.0 | — | 3.6 | V |
| Input High Voltage | VIH | 0.7*IOVCC | – | IOVCC | V |
| Input Low Voltage | VIL | 0 | – | 0.3*IOVCC | V |
| Output High Voltage | VOH | — | – | – | V |
| Output Low Voltage | VOL | – | – | — | V |
Backlight Circuit Characteristics
| Item | Symbol | Min. | Typ. | Max. | Unit |
| LED Current | IB | – | 20 | – | mA |
| LED Voltage | Vf | 16.8 | — | 19.8 | V |
| CIE | X | TBD | TBD | TBD | |
| Y | TBD | TBD | TBD | ||
| Brightness of LCM | L | –480 | — | cd/m2 |
Reliability Test Items
| Test Item | Test Parameters | Key factors for determining test results |
| High temperature storage | 80±3 ℃，48H； | |
| Low temperature storage | -30±3 ℃，48H； | |
| High temperature storage | 70±3 ℃，48H； | Inspection after 2~4hours storage at roomtemperature, |
| Low temperature operation | -20±3 ℃，48H； | the sample shall be free from defects: |
| High temperature/humidity | 60℃±3 ℃,90%±3%RH ，48H； | 1.Air bubble in the LCD; |
| Thermal Shock | ~20℃/0.5h~+70℃/0.5h for a total 24 cycles； | 2.Non-display; |
| Vibration Test | Frequency 10Hz~55Hz~10Hz | 3.Glass crack; |
| Amplitude：1.5mm, X，Y，Z | ||
| direction for total 1H； | 4. The electrical | |
| (Packing condition) | ||
| ESD test | ±4KV, Human Body Mode, | characteristics requirements shall be satisfied. |
| 150pF/330Ω； | ||
| ±8KV, Air Mode, 150pF/330Ω； |
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