The hx8872c datasheet is more than a simple spec sheet; it is the blueprint for integrating a QVGA TFT display into your product. From power sequencing and gamma correction to timing diagrams and command tables, every line of the datasheet impacts the final performance of your display.
While newer driver ICs exist, the HX8872C remains a robust, battle-tested choice for 240x320 resolution applications. When you download the official datasheet, pay special attention to:
Next Steps:
With this guide and the official datasheet in hand, you are ready to bring your TFT-LCD project to life.
Disclaimer: This article is an educational summary of publicly available information regarding the HX8872C. For production designs, always verify all parameters against the latest official datasheet from Himax Technologies.
The HX8872-C is a high-performance Timing Controller (T-CON) manufactured by Himax Technologies. It is primarily designed for high-definition (HD) LCD and LED television panels, though it is also utilized in automotive navigation systems and portable consumer electronics. 1. Key Technical Specifications
The device is optimized for HD resolutions and low-power operation. hx8872c datasheet
Supported Resolution: Native support for 1366 x 768 HD displays. Operating Voltage ( VDDcap V sub cap D cap D end-sub ): Typically 3.3V (range: 2.0V to 5.5V).
Frequency Range: Operates between 25 MHz and 90 MHz (internal clock up to 24 MHz). Power Consumption: Active: ~10 to 20 mA. Standby: Minimal current of 1.0 to 2.0
Interface: Utilizes SPI (Serial Peripheral Interface) for communication with the MCU. Package Type: Standard TQFP-64 (64-pin Quad Flat Package). 2. Advanced Features
The HX8872-C includes several proprietary Himax technologies to improve image quality and power efficiency:
Over-Drive Technology: Reduces motion blur in fast-moving video sequences.
Content Adaptive Backlight Control (CABC): Automatically adjusts backlight brightness based on the image content to save energy. The hx8872c datasheet is more than a simple
Integrated Circuits: Features built-in shift registers and level shifters for streamlined display driving.
Thermal Protection: Includes an automatic thermal shutdown if temperatures exceed 150°C. 3. Application & Integration
The chip is frequently found in HD LCD/LED TV panels and is also suitable for: Automotive: Navigation systems and car audio displays. Consumer Gear: Digital cameras, tablets, and mobile phones.
DIY Projects: Used for upgrading older display systems or in custom embedded display projects. 4. Recommended Operation (Summary Table) Typical Value Supply Voltage ( VDDcap V sub cap D cap D end-sub ) Operating Temp -20 to +85 Max Clock Frequency 24 (Internal) / 90 (Bus) Output Voltage ( VOUTcap V sub cap O cap U cap T end-sub ) ESD Protection Standard Precautions Required
Detailed availability and official technical documentation can be found through authorized distributors like Himax Technologies or technical libraries like Jotrin Electronics and Utsource. HX8872-C | In Stock | Utsource
| MODE_SEL1 | MODE_SEL0 | Mode Description | |-----------|-----------|-------------------------------------------| | 0 | 0 | Auto-negotiation TP, Fiber fixed 100FDX | | 0 | 1 | Force TP 100FDX, Fiber 100FDX | | 1 | 0 | Force TP 10HDX, Fiber 100FDX (rare) | | 1 | 1 | Isolate / Loopback test mode | Next Steps:
void init_HX8872C() digitalWrite(RESET_PIN, LOW); delayMicroseconds(20); digitalWrite(RESET_PIN, HIGH); delay(120);writeCommand(0x11); // Sleep out delay(120);
writeCommand(0x3A); writeData(0x77); // 24-bit color
writeCommand(0x36); writeData(0x48); // Normal RGB scan direction
writeCommand(0x29); // Display ON
The HX8872C is register-programmable. The datasheet dedicates 10+ pages to command definitions. Here are the most commonly used commands:
| Command (Hex) | Function | Description | |---------------|----------|-------------| | 0x11 | Sleep Out | Exits sleep mode, enables oscillator | | 0x29 | Display ON | Turns on the display panel | | 0x28 | Display OFF | Turns off without losing register settings | | 0x36 | MADCTL | Memory access control (scan direction, RGB/BGR swap) | | 0x3A | COLMOD | Interface pixel format (e.g., 0x66 = 18-bit, 0x77 = 24-bit) | | 0x2A | Column Address Set | Defines horizontal display range | | 0x2B | Page Address Set | Defines vertical display range | | 0x2C | Write Memory | Starts writing pixel data to GRAM |
This feature allows the system to update only a specific region of the screen while keeping the rest of the screen static or off. This is critical for: