Hx8872c Datasheet -
| Parameter | Specification | | :--- | :--- | | | Up to 240 (RGB) x 320 | | Color Depth | 262K colors (18-bit RGB) | | Interface Type | 8-bit, 9-bit, 16-bit, 18-bit parallel (8080/6800) + SPI | | Internal Memory | 172,800 bytes (GRAM) | | Operating Voltage (Logic) | 1.65V to 3.3V (I/O) | | Operating Voltage (Analog) | 2.5V to 3.3V | | On-chip Functions | DC-DC converter, Timing controller, Oscillator, Gamma correction | | Display Modes | Full color, 8-color (idle mode), Sleep mode | | Package | COG (Chip on Glass) / COF (Chip on Flex) | Interface Details The HX8872C is highly flexible. It supports both Intel 8080 and Motorola 6800 parallel bus modes. This means you can connect it directly to most MCU parallel buses without glue logic. Additionally, a 3-wire or 4-wire SPI interface is available for command transmission, though pixel data usually goes through the parallel bus for speed. Pin Configuration Understanding (Based on Datasheet) While the exact pinout varies by package, the hx8872c datasheet consistently groups pins into the following categories:
void HX8872C_Init(void) // 1. Hardware reset RESX = 0; delay_ms(10); RESX = 1; delay_ms(120); // 2. Exit sleep write_command(0x11); // SLPOUT delay_ms(120); hx8872c datasheet
| Driver IC | Resolution | Interface | On-chip GRAM | Key Difference | | :--- | :--- | :--- | :--- | :--- | | | 240x320 | 8/16/18-bit + SPI | Yes | Mature, stable, good for QVGA | | ILI9341 | 240x320 | 4-line SPI + 8080 | Yes | More common in hobbyist community | | ST7789 | 240x320 | SPI only | Yes | Lower pin count, smaller package | | SSD1963 | Up to 800x480 | RGB parallel | No | Requires external frame buffer | | Parameter | Specification | | :--- |
This article serves as a detailed reference guide for the HX8872C, consolidating the most critical information found in the official datasheet into an easy-to-read format. Always refer to the official Himax Technologies datasheet for absolute electrical characteristics and timing diagrams. This guide is for informational and preparatory purposes. What is the HX8872C? The HX8872C is a single-chip TFT-LCD (Thin-Film Transistor Liquid Crystal Display) controller and driver. Manufactured by Himax Technologies , this IC is designed to drive displays with a resolution of up to 240 RGB x 320 pixels (a common quarter VGA or QVGA format). Additionally, a 3-wire or 4-wire SPI interface is
Introduction In the world of embedded systems, wearable tech, and small-screen interfaces, the driver IC behind the display is just as important as the microcontroller (MCU) running it. One such popular driver for small to medium-sized TFT-LCD panels is the HX8872C .
// 4. Memory access control (set RGB, row/col order) write_command(0x36); write_data(0x00); // Check datasheet for your panel orientation
// 3. Display off during setup write_command(0x28); // DISPOFF
