4.3″ TFT LCD COF Display | 480×272 | ARM Cortex-M4F
4.3-inch TFT LCD COF display with 480×272 resolution, ARM Cortex-M4F CPU, USB download, CAN & UART communication, and optional resistive touchscreen.
4.3″ TFT LCD COF Display Module ASTG043W023 | Compact & High-Performance
Overview
The ASTG043W023 is a 4.3-inch TFT LCD COF (Chip-on-Film) display module designed for industrial and embedded applications. It features a 480×272 resolution, 65,536 colors, and 250 cd/m² brightness, ensuring crisp and vibrant visuals. The adjustable LED backlight enhances visibility, while the COF design provides a slim and lightweight form factor. Powered by a 200MHz ARM Cortex-M4F CPU, it integrates 2MB onboard + 8MB external SPI NOR Flash, offering excellent performance and storage capacity.
Key Features
- High-Quality Display: 4.3-inch TFT LCD, 480×272 resolution, 250 cd/m² brightness
- Touchscreen Options:
- ASTG043W023-L480X272R-COF: Resistive touchscreen for precise control
- ASTG043W023-L480X272N-COF: Non-touch version for standard display applications
- Powerful Processing: 200MHz ARM Cortex-M4F CPU with 2MB PSRAM
- Reliable Storage: 2MB onboard + 8MB external SPI NOR Flash
- Versatile Communication Interfaces:
- 1 TTL-level UART (UART2) communication port
- 1 CAN (CAN1) communication port for external controller communication
- USB Download Support: UI can be designed using HMILite software and downloaded via USB
- External Touchscreen Support: Compatible with external capacitive touchscreens
- Flexible Power & Expansion:
- Operates at 3.3V
- Multiple I/O ports for input/output control via macro commands
- Industrial Durability:
- Operating temperature: -20℃ to 70℃
- Storage temperature: -30℃ to 80℃
- Humidity tolerance: 10% ~ 90% RH (non-condensing)
- Vibration resistance: 10-25Hz (X, Y, Z axis, 2g/30 minutes)
- Robust Protection:
- ESD Protection: ±2KV (contact), ±4KV (air discharge)
- EFT Protection: IEC 61000-4-4 standard, strong anti-interference
- Power Loss Tolerance: <5ms
- Slim & Lightweight: 105.5mm × 67.2mm × 4.6mm, ultra-thin design
Applications
Ideal for industrial control systems, embedded applications, smart devices, medical equipment, and automation interfaces, offering a compact, high-performance display solution.
Hardware Performance
| Item | Specification |
|---|---|
| Model | ASTG043W023-L480X272R-COF / ASTG043W023-L480X272N-COF |
| Display | 4.3″ TFT LCD |
| Resolution (Px) | 480 × 272 |
| Colors | 65,536 colors |
| Brightness | 250 cd/m² |
| Backlight | LED (adjustable backlight) |
| LED Lifetime | 20,000 hours |
| Active Display Area (AA) | 95.0mm × 53.9mm |
| Product Dimensions (L × W × H) | 105.5mm × 67.2mm × 4.6mm (MAX, including TP) |
| Touchscreen | L480X272R: Resistive touchscreen L480X272N: No touchscreen |
| CPU | 200MHz ARM Cortex-M4F with built-in 2MB PSRAM |
| Memory | 2MB onboard SPI NOR Flash; 8MB external SPI NOR Flash |
| RTC | Supported (requires external circuit) |
| Buzzer | Supported (requires external circuit) |
| Power Failure Data Retention | Auto-save within 3 seconds |
| USB Port | USB Device |
| Program Download Method | USB Download |
| Communication Ports | 1 TTL-level serial port 1 CAN communication interface |
| Connector Specification | FPC 0.5mm-50P |
Electrical Specifications
| Item | Specification |
|---|---|
| Rated Power | Max 1.2W |
| Rated Voltage | 3.3V |
| Power Loss Tolerance | <5ms |
| ESD Test | Contact discharge: ±2KV; Air discharge: ±4KV |
| EFT Test | IEC 61000-4-4 Standard 4 (Voltage: ±4KV; Frequency: 5KHz; Duration: 120S), no reboot, no display anomalies, no touchscreen anomalies, normal functionality |
Environmental Specifications
| Item | Specification |
|---|---|
| Operating Temperature | -20℃ ~ 70℃ |
| Storage Temperature | -30℃ ~ 80℃ |
| Humidity | 10 ~ 90% RH (non-condensing) |
| Vibration Resistance | 10-25Hz (X, Y, Z axis, 2g/30 minutes) |
| Cooling Method | Natural air cooling |
Additional Information
- The COF series screen is available in both resistive touchscreen and non-touch versions.
- Supports external capacitive touchscreen connection.
- Powered by 3.3V.
- UI design is done using HMILite software, and the UI can be downloaded via USB.
- The COF screen supports 1 UART (UART2) serial communication port and 1 CAN (CAN1) communication port for data exchange with external controllers.
- RTC and buzzer are supported but require additional external circuitry.
- Multiple I/O ports are reserved for input and output control via macro commands.