Item specifics
Description
The STM32F429VET6 is a Cortex-M4 high-performance MCU from STMicroelectronics in an LQFP-100 package. It runs at 180 MHz with FPU and ART Accelerator. It integrates 512 KB Flash, 256 KB SRAM (incl. 64 KB CCM), LCD-TFT controller (up to XGA resolution), Chrom-ART Accelerator (DMA2D) for hardware 2D graphic operations, Ethernet 10/100 MAC (IEEE 1588 PTP, MII/RMII), USB 2.0 OTG (FS/HS, FS on-chip PHY), camera interface (DCMI), hardware crypto/HASH/true random number processor, FMC (supporting SRAM/PSRAM/NOR/NAND/SDRAM), dual CAN 2.0B, two 12-bit DACs, three 12-bit ADCs (24ch, up to 7.2 MSPS in triple-interleaved mode), up to 17 timers (incl. 2 advanced motor control PWM/deadtime). 82 I/Os, all 5 V-tolerant. Supply 1.8–3.6 V, -40–85 °C. Compared to the STM32F429VGT6 (1 MB Flash), this model features 512 KB Flash, making it a cost-effective entry choice for 100-pin LCD driving and graphics applications. Compared to the STM32F407VET6 (168 MHz, without LCD, Chrom-ART, and SDRAM), this model adds an LCD-TFT controller, Chrom-ART accelerator, and FMC with SDRAM support, significantly enhancing HMI and graphics processing capabilities.
Core: Arm Cortex-M4 180 MHz + FPU + ART Accelerator Memory: 512 KB Flash, 256 KB SRAM (incl. 64 KB CCM) LCD-TFT Controller: Up to 1024×768 resolution, parallel RGB interface Chrom-ART Accelerator (DMA2D): Hardware 2D graphic operations, offloading CPU FMC: Supports SRAM, PSRAM, NOR, NAND, and SDRAM for flexible external memory expansion Ethernet MAC: 10/100 Mbit/s, IEEE 1588 PTP hardware support, MII/RMII USB 2.0 OTG: FS + HS, FS on-chip PHY, HS requires external ULPI SDIO + HW Crypto: SD/MMC interface; AES 128/192/256, 3DES, HASH (MD5, SHA-1), True RNG Dual CAN 2.0B: Supports dual industrial bus communication Camera Interface: 8–14-bit parallel DCMI 3×12-bit ADCs: 24 channels, 2.4 MSPS (up to 7.2 MSPS in triple-interleaved mode) 2×12-bit DACs: Buffered output Timers: Up to 17 (2× motor control PWM/deadtime/emergency stop, 12× 16-bit GP/quadrature encoder, 2× basic, 2× watchdogs, SysTick) Communication Interfaces: 4×USART + 2×UART (ISO7816/LIN/IrDA), 3×SPI (30 Mbit/s), 2×I2S, 3×I2C (SMBus), USB OTG, SDIO, Ethernet I/Os: 82, all 5 V-tolerant Low Power: Sleep/Stop/Standby, VBAT backup RTC Package: LQFP-100 (14×14×1.4 mm)
Industrial: PLCs, inverters, precision motor drives, industrial Ethernet gateways HMI: Low-to-medium resolution graphical display panels, industrial touch screens Motor Control: Dual-motor FOC, servo drives, pumps Image Capture: Simple camera monitoring, barcode scanning, industrial vision Network Communication: Ethernet control nodes, IoT gateways Security Applications: IoT security, payment terminals, data integrity verification Portable Medical Devices
LCD-TFT Controller + Chrom-ART: High-resolution display with hardware graphics acceleration for HMI and embedded GUI applications FMC + SDRAM: Expandable large external SDRAM for graphics frame buffer and big data processing 180 MHz Cortex-M4 + FPU: Powerful performance for complex DSP and floating-point operations 256 KB SRAM + 512 KB Flash: Large SRAM for complex data processing and graphics buffering Ethernet + DCMI + Crypto + Dual CAN: Network communication, image capture, data security, and dual industrial bus in a 100-pin package Hardware Crypto Engine + RNG: AES/3DES/HASH/true random number for data security and integrity Dual DACs + 3 ADCs: Comprehensive analog functions with multi-channel synchronous acquisition 17 Timers (incl. 2 Motor Control): Supports dual-motor FOC Mature STM32 Ecosystem: CubeIDE/CubeMX/HAL/LL
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FAQ:
What is the STM32F429VET6 and how is it positioned in the F429 series?
The STM32F429VET6 is an entry‑level member of the STM32F429 Cortex‑M4 family, running at 180 MHz with 512 KB of Flash, 256 KB of SRAM, Chrom‑ART graphics accelerator, TFT‑LCD controller, and DCMI camera interface, all packed into an LQFP‑100 body. It targets cost‑sensitive applications that still need advanced graphics and camera support but have a well‑defined code footprint within 512 KB.
How does the STM32F429VET6 differ from the STM32F429VGT6? When should I pick the VET6?
Both share the same LQFP‑100 package, peripherals, and SRAM. The only difference is Flash size: VET6 has 512 KB, VGT6 has 1 MB. Choose the VET6 when your compiled firmware, GUI assets, and RTOS fit comfortably within 512 KB, as it delivers the full F429 graphical and camera capabilities at the lowest cost in the LQFP‑100 lineup.
Can a 100‑pin MCU like the STM32F429VET6 really drive a TFT display, SDRAM, and a camera at the same time?
Yes. With careful pin planning, the VET6 can simultaneously interface with a parallel RGB TFT (up to 24‑bit color), external SDRAM, a DCMI camera, and still leave pins for USB, CAN, UART, and SD card. The flexible memory controller supports 8‑ or 16‑bit multiplexed SDRAM, which is sufficient for frame‑buffer storage in resolutions up to 800×480.
Is 512 KB of Flash really enough for a graphical user interface with TouchGFX and an RTOS?
Absolutely. A minimalist FreeRTOS + TouchGFX project with a single language, a few screens, and moderate‑sized icons can easily fit within 300‑450 KB. By carefully selecting fonts and compressing bitmaps, you can leave room for application logic. If your UI is very complex or needs multiple languages, consider the 1‑MB VGT6.
What is the difference between STM32F429VET6 and STM32F429ZET6? Is the 100‑pin package enough?
The VET6 uses an LQFP‑100 package (up to 82 I/Os), while the ZET6 uses an LQFP‑144 (up to 114 I/Os). Memory and all other features are identical. Choose VET6 if 82 I/Os are sufficient for your design and you prefer a smaller PCB. Go with ZET6 if you need extra I/Os for more parallel peripherals, such as Ethernet MII, dual CAN plus multiple SPIs, or a 32‑bit wide SDRAM.
How much SRAM does the STM32F429VET6 have, and what is the best way to use it for real‑time graphics?
It provides 256 KB of SRAM, split into 112 KB general‑purpose, 64 KB CCM (core‑coupled), 64 KB DTCM, and 16 KB ITCM. Place time‑critical interrupt routines in ITCM, the stack and hot data in DTCM, frequently used lookup tables in CCM, and use the general‑purpose SRAM for communication buffers. The frame buffer (e.g., 800×480 at 16‑bit color) typically requires an external SDRAM, which the chip supports seamlessly.
Can I upgrade from STM32F407Vx to STM32F429VET6? What are the benefits?
Yes, the transition is very smooth. The LQFP‑100 pinout is largely compatible. You gain the Chrom‑ART graphics accelerator for much smoother GUIs, a dedicated TFT‑LCD controller, a DCMI camera interface, and a larger SRAM (256 KB vs 192 KB). The Flash stays at 512 KB, so your existing code size remains manageable. Existing HAL libraries can be reused with minimal modifications.
Does the STM32F429VET6 support TouchGFX, and is the development toolchain free?
Yes, ST’s free TouchGFX framework is fully optimized for the Chrom‑ART accelerator. You can use the free STM32CubeIDE, as well as Keil MDK and IAR EWARM. Prototyping can start on a low‑cost Discovery board, then easily migrate to the VET6 by updating the linker script and CubeMX pin assignments.
What happens if my firmware outgrows the 512‑KB Flash after production? Is there a pin‑compatible alternative?
The STM32F429VGT6 is a pin‑to‑pin compatible drop‑in replacement with 1 MB of Flash. If you designed the PCB to accommodate both, you can upgrade without any hardware changes. This provides a straightforward path to extend the product’s life cycle if more storage is later required.
What are the best applications for the STM32F429VET6, given its 512‑KB Flash and LQFP‑100 package?
It is ideal for single‑purpose HMIs, home‑automation thermostats, portable medical devices, front panels of test equipment, and educational graphical development boards. These applications benefit from the rich graphics and camera interface but have a predictable code base that fits well within 512 KB, ensuring a compact, cost‑efficient design.