STMicroelectronics STM32F429VGT6TR

Overview

STM32F429VGT6TR from STMicroelectronics is a 32-bit Arm® Cortex®-M4 MCU with FPU, operating up to 180 MHz (225 DMIPS), featuring 1 MB flash, 256 KB SRAM + 4 KB backup SRAM, integrated LCD-TFT controller supporting up to 4096×2048 resolution at 83 MHz pixel clock, and dual CAN 2.0B interfaces. It targets high-performance embedded graphics and connectivity applications such as industrial HMIs and medical display terminals.

For engineers reviewing the STM32F429VGT6TR datasheet, STM32F429VGT6TR pinout, STM32F429VGT6TR application, or STM32F429VGT6TR equivalent, key selection criteria include LCD-TFT controller capability, USB OTG HS/FS + Ethernet MAC support, Chrom-ART Accelerator™ (DMA2D) for graphics offload, and 168 I/Os with 5 V tolerance - all confirmed in DS9405 Rev 13.

Technical Context

The STM32F429VGT6TR integrates an Adaptive Real-time Accelerator (ART Accelerator™) enabling zero-wait-state execution from flash at 180 MHz, alongside a dedicated LCD-TFT controller (LTDC) with programmable timing and hardware layer blending. Its memory subsystem includes dual-bank flash (read-while-write), 64 KB CCM RAM for time-critical code, and flexible external memory controller supporting SDRAM, NOR, and NAND.

Connectivity is defined by dual USB OTG controllers (one HS with ULPI, one FS with on-chip PHY), 10/100 Ethernet MAC with IEEE 1588v2 hardware timestamping, and 21 communication peripherals including 6 SPIs (45 Mbit/s), 4 USARTs, 3 I²C, 2 CAN, SAI, SDIO, and DCMI camera interface - all mapped to 168 GPIOs with interrupt capability.

Key Specifications

Pinout & Package

LQFP100 (14 × 14 mm) package with exposed thermal pad (ECOPACK2 compliant). Pin count: 100 leads; pitch: 0.5 mm; body size: 14 mm × 14 mm; thermal resistance θ_JA = 40 °C/W (JEDEC standard).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-performance ARM Cortex-M4 microcontroller applications.

Compared with STM32F427VGT6, the STM32F429VGT6TR adds essential display subsystem IP (LTDC + DMA2D), making it uniquely suited for cost-sensitive, high-resolution parallel-TFT designs; versus STM32F767VIT6, it trades raw performance and DSI support for lower BOM cost and simpler PCB layout with parallel RGB.

Availability

STM32F429VGT6TR is available at Aetrix Electronics and suitable for industrial HMIs, medical imaging terminals, smart building gateways, and test & measurement instruments requiring stable component supply across long-lifecycle deployments.

Supply support for STM32F429VGT6TR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing microcontrollers, power ICs, sensors, and automotive-grade components since 1987.

The STM32F4-series targets high-performance real-time embedded applications demanding rich connectivity, graphics, and deterministic execution - specifically engineered for industrial control, medical devices, and human-machine interfaces where integration, reliability, and peripheral flexibility are critical.

FAQ

What is the maximum resolution supported by the built-in LCD-TFT controller?

The STM32F429VGT6TR's LTDC supports total display resolutions up to 4096 pixels wide and 2048 lines tall, with pixel clock frequencies up to 83 MHz. This enables native support for WQXGA (2560×1600) and higher panels when paired with appropriate external timing controllers or directly driven RGB interfaces.

Does STM32F429VGT6TR support hardware encryption acceleration?

No, the STM32F429VGT6TR does not include dedicated cryptographic accelerators (e.g., AES, SHA, PKA). It relies on software libraries (STM32Cube HAL + mbed TLS) for encryption. However, its True Random Number Generator (RNG) is NIST SP800-90B compliant and provides entropy for secure key generation.

Can the USB OTG High-Speed interface operate without an external ULPI transceiver?

No. The USB OTG HS interface requires an external ULPI PHY (e.g., SMSC USB334x or Microchip USB3320) connected to PB14–PB15 (ULPI D0–D7) and associated control signals. The on-chip PHY is only provided for the Full-Speed OTG interface (PA11/PA12).

What is the purpose of the 64 KB CCM (Core Coupled Memory) RAM?

The 64 KB CCM RAM is tightly coupled to the Cortex-M4 core and accessible only by the CPU (not by DMA). It is optimized for time-critical code and data - such as interrupt service routines, real-time control algorithms, or stack storage - ensuring deterministic zero-latency access without contention from DMA or bus matrix arbitration.