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Integrating a TFT display into an embedded system involves more than just connecting pins. Understanding the electrical characteristics, timing requirements, and environmental limits is essential for achieving stable and long-lasting performance. Let’s explore the SF-TC350H-8826A-CT2—a 3.5-inch TFT module from Saef Technology Limited—from a design and integration perspective.
The module features a 45-pin FPC connector with clearly defined power, data, and control lines. Key signals include:
VCC (2.8V) and IOVCC (1.8V/2.8V) for logic and I/O
RGB data lines (DB0–DB15) for 16-bit color
VSYNC, HSYNC, DOTCLK, ENABLE for synchronization
Touch interface (SDA, SCL, INT, RST) for capacitive touch
To avoid display artifacts or damage, follow the recommended power-on sequence:
Stabilize VCC and IOVCC
Release RESET
Enable RGB or SPI interface
Turn on backlight after 200ms
With a typical response time of 12ms and a luminance of 300 cd/m², the screen is responsive and bright enough for most indoor applications. The 70% NTSC color gamut ensures accurate color reproduction—key for user interfaces that use color-coding or graphics.
The module has been tested under:
High-temperature storage (80°C for 120 hours)
Thermal cycling (-20°C ↔ 70°C)
Humidity (40°C, 90% RH)
These tests ensure the display will perform reliably in real-world conditions, from factory floors to clinical settings.
The mechanical outline (54.48mm × 84.71mm × 2.2mm) and mounting hole positions are designed for easy integration into enclosures. The touch panel is pre-assembled, reducing assembly time and improving overall reliability.
For engineers looking for a compact, high-quality TFT display with touch support, the SF-TC350H-8826A-CT2 offers a compelling combination of performance and durability. With clear documentation and a robust design, Saef Technology Limited continues to support developers with displays that are both easy to integrate and built to last.

