STM32F429VGT6 ST High-Performance Arm Cortex-M4 MCU 1MB Flash 256KB SRAM LCD-TFT Chrom-ART Ethernet USB LQFP-100

STM32F429VGT6 Product Overview

The STM32F429VGT6 is a high-performance Cortex-M4 MCU from STMicroelectronics in an LQFP-100 package. It runs up to 180 MHz with FPU and ST ART Accelerator. It integrates 1 MB Flash, 256 KB SRAM (incl. 64 KB CCM), Chrom-ART Accelerator™ (DMA2D), LCD-TFT controller, USB OTG HS/FS, 10/100 Ethernet MAC, camera interface, 3×12-bit ADCs (2.4 Msps), 2×12-bit DACs, up to 17 timers (incl. 2 advanced motor control), and rich communication interfaces (4×USART/4×UART/6×SPI/3×I2C/2×CAN/SAI). 82 x 5 V-tolerant I/Os. Supply voltage 1.8–3.6 V, -40–85 °C. Compared to the STM32F407 series, it adds the Chrom-ART accelerator and LCD-TFT controller, significantly boosting graphics performance for applications demanding vivid HMI.

STM32F429VGT6 Core Features

Core: Arm Cortex-M4 180 MHz + FPU + ART Accelerator + MPU Memory: 1 MB Flash, 256 KB SRAM (incl. 64 KB CCM) Graphics & Acceleration: Chrom-ART Accelerator™ (DMA2D), LCD-TFT controller (up to XGA) Connectivity: 10/100 Ethernet MAC, USB 2.0 OTG HS/FS, Camera interface Analog: 3×12-bit ADCs (2.4 Msps, 24 ch), 2×12-bit DACs Timers: 2×Advanced-control (PWM/deadtime/brake), 10×GP, 2×Basic, 2×WDT, SysTick Interfaces: 4×USART/4×UART, 6×SPI/I2S, 3×I2C, 2×CAN, SAI, SDIO I/Os: 82, all 5 V-tolerant Low Power: Sleep/Stop/Standby, VBAT domain, 4 KB Backup SRAM Package: LQFP-100 (14×14 mm)

STM32F429VGT6 Applications

Industrial HMIs, Smart-home control panels Consumer display devices, Handheld terminals IoT Gateways, Industrial automation controllers Motor control and drives (advanced timers and fast ADCs) Security monitoring and image acquisition

STM32F429VGT6 Key Advantages

180 MHz Cortex-M4 + FPU + Chrom-ART: Offloads CPU for smooth graphics 1 MB Flash + 256 KB SRAM: Ample space for complex code and frame buffers LCD-TFT Direct Drive: Supports parallel displays from QVGA to XGA, no external chip needed Complete Connectivity: Integrated Ethernet, High-Speed USB, and camera interface Advanced Motor Control: 2 advanced timers for FOC and digital power Mature STM32Cube Ecosystem: CubeIDE/CubeMX/HAL/LL for fast prototyping

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FAQ:

1. What is the STM32F429VGT6 and how does it differ from the STM32F429ZGT6?
   The STM32F429VGT6 is a 180 MHz Cortex‑M4 microcontroller with 1 MB Flash, 256 KB SRAM, Chrom‑ART accelerator, TFT‑LCD controller, and DCMI camera interface. The key difference from the ZGT6 is the package: VGT6 uses LQFP‑100 (up to 82 I/Os) while ZGT6 uses LQFP‑144 (up to 114 I/Os). Both have identical memory, graphics, and camera capabilities. Pick VGT6 when 82 I/Os are sufficient and a smaller PCB footprint is desired.

2. Can the LQFP‑100 package still deliver a full graphical HMI with external SDRAM and a camera?
   Yes. With careful pin assignment, the VGT6 can simultaneously drive a parallel RGB TFT display (up to 24‑bit), interface with external SDRAM, connect a DCMI camera, and still have pins available for USB, CAN, UART, and an SD card. The flexible memory controller on the 100‑pin package supports multiplexed 8‑ or 16‑bit SDRAM, which is sufficient for frame‑buffer storage.

3. How should I decide between STM32F429VGT6 and STM32F429ZGT6? Is the 100‑pin version enough?
   Choose VGT6 when you can map your essential peripherals within 82 I/Os. This is common in single‑purpose HMIs, portable instruments, and dedicated controllers. Use ZGT6 if you need to run many parallel peripherals simultaneously, such as Ethernet MII (instead of RMII), dual CAN plus multiple SPI/UART, or a full 32‑bit wide SDRAM. The VGT6 is typically the more compact, cost‑sensitive choice.

4. How much Flash and SRAM does the STM32F429VGT6 provide? Can I fit a full TouchGFX GUI and an RTOS?
   It provides 1 MB of Flash and 256 KB of SRAM. This is enough for FreeRTOS, TouchGFX, a TCP/IP stack, and a rich set of fonts and icons. The SRAM is organized into 112 KB general‑purpose, 64 KB CCM, 64 KB DTCM, and 16 KB ITCM. An external SDRAM is typically added for the frame buffer, while the internal SRAM handles the stack, real‑time data, and critical code.

5. Does the STM32F429VGT6 support a camera interface and a display simultaneously?
   Yes. The DCMI (8‑ to 14‑bit parallel) and the TFT‑LCD controller use independent DMA channels. The chip can capture images from sensors like OV2640 or OV5640 and refresh the display at the same time, even on the 100‑pin package, provided you have assigned the necessary pins without conflicts.

6. What is the difference between STM32F429VGT6 and STM32F429VET6? Which one should I choose?
   Both are LQFP‑100 with the same peripherals and SRAM. VGT6 has 1 MB Flash, while VET6 has 512 KB Flash. If your code and assets fit in 512 KB, the VET6 saves cost; if you need more space for multiple languages, high‑resolution bitmaps, or future updates, the VGT6 offers double the room.

7. How does the Chrom‑ART accelerator help in a space‑constrained design like the VGT6?
   Chrom‑ART (DMA2D) performs pixel blending, format conversion, and block copying in hardware. This offloads the CPU so effectively that even on a 100‑pin system, you can drive smooth animations and responsive touch interfaces up to XGA (1024×768) resolution, without needing an external graphics processor.

8. Can I upgrade from STM32F407Vx to STM32F429VGT6? Is the pinout compatible?
   In most cases, yes. Many STM32F407Vx LQFP‑100 designs share a very similar pin‑out with the F429VGT6. You gain the Chrom‑ART accelerator, a dedicated TFT‑LCD controller, the DCMI camera interface, larger SRAM (256 KB vs 192 KB), and twice the Flash (1 MB vs 512 KB on comparable F407 models). HAL code can be reused with minimal changes.

9. What development tools and frameworks support the STM32F429VGT6? Is TouchGFX free?
   The free STM32CubeIDE, Keil MDK, and IAR EWARM all fully support the VGT6. TouchGFX, ST’s free graphical framework, is highly optimized for the Chrom‑ART accelerator. You can prototype on a Discovery board with the same F429 series and then re‑target to the VGT6 by adjusting the linker script and CubeMX pin configuration.

10. What are the most typical applications for the STM32F429VGT6?
    It excels in compact industrial HMI panels, portable medical devices, home automation touch screens, and dedicated controllers where a full 144‑pin package would be unnecessary but high‑quality graphical output, camera input, and rich connectivity are still required. The LQFP‑100 body also simplifies PCB layout and soldering.