STMicroelectronics STM32F429VET6TR

Overview

STM32F429VET6TR from STMicroelectronics is a 32-bit Arm® Cortex®-M4 MCU with FPU, operating up to 180 MHz (225 DMIPS), featuring 512 KB flash, 256+4 KB SRAM (including 64 KB CCM), integrated LCD-TFT controller supporting up to 4096×2048 resolution at 83 MHz pixel clock, and Chrom-ART Accelerator™ for hardware-accelerated 2D graphics. It targets high-resolution embedded HMI applications such as industrial panel displays and medical visualization terminals.

For engineers reviewing the STM32F429VET6TR datasheet, STM32F429VET6TR pinout, STM32F429VET6TR application, or STM32F429VET6TR equivalent, key selection criteria include LCD-TFT controller capability, dual CAN 2.0B support, USB OTG HS/FS with dedicated DMA, Ethernet MAC with IEEE 1588v2 hardware timestamping, and 168 I/Os with 5 V tolerance - all confirmed in DS9405 Rev 13.

Technical Context

This MCU integrates an Adaptive Real-time Accelerator (ART Accelerator™) enabling zero-wait-state execution from flash memory, and a dedicated LCD-TFT controller (LTDC) with programmable timing, RGB/YUV output, and layer blending - exclusive to the STM32F429xx series. Its memory subsystem includes dual-bank flash (enabling read-while-write) and flexible external memory controller (FMC) supporting SDRAM, NOR, NAND, and PSRAM.

The device implements two independent USB controllers: OTG_FS with on-chip full-speed PHY and OTG_HS with dedicated DMA, ULPI interface, and on-chip full-speed PHY. It also embeds a 10/100 Ethernet MAC with MII/RMII support and IEEE 1588v2 hardware timestamping - critical for deterministic industrial networking.

Key Specifications

Pinout & Package

LQFP100 package (14 × 14 mm, 0.5 mm pitch), ECOPACK2-compliant, with exposed thermal pad. Pin count and signal mapping validated per DS9405 Rev 13 Section 4 (Pinouts and pin description) and Table 10 (STM32F427xx and STM32F429xx pin and ball definitions).

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32F429ZIT6, the STM32F429VET6TR offers identical peripherals in a smaller LQFP100 package with less flash - ideal for cost- and space-constrained HMIs. Versus STM32F767ZIT6, it trades raw compute for lower power, proven toolchain maturity, and direct LCD-TFT integration without external bridge ICs.

Availability

STM32F429VET6TR is available at Aetrix Electronics and suitable for industrial HMI panels, medical imaging terminals, networked building controllers, and advanced motor drive interfaces requiring stable component supply throughout product lifecycles.

Supply support for STM32F429VET6TR 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 management ICs, sensors, and automotive semiconductors since 1987.

The STM32F429xx series belongs to ST's high-performance mainstream MCU line, engineered specifically for embedded applications demanding rich graphics, real-time connectivity, and deterministic control - especially human-machine interfaces with integrated display drivers.

FAQ

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

The LTDC controller 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 WXGA (1280×800), SXGA (1280×1024), and HD+ (1600×900) panels without external timing generators or frame buffers - confirmed in DS9405 Rev 13 Section 3.10 and Table 6.3.28.

Does STM32F429VET6TR support hardware-accelerated 2D graphics operations?

Yes - it integrates the Chrom-ART Accelerator™ (DMA2D), a dedicated hardware engine that performs memory-to-memory copy, memory fill, and alpha-blending operations without CPU intervention. This reduces CPU load by up to 70% during GUI rendering and enables smooth animation on resource-constrained displays, as documented in Section 3.11 of DS9405 Rev 13.

Can both USB OTG_FS and OTG_HS operate simultaneously?

Yes - the device implements two independent USB controllers: OTG_FS (with on-chip full-speed PHY) and OTG_HS (with dedicated DMA, ULPI interface, and on-chip full-speed PHY). They can operate concurrently - for example, acting as a USB host for a keyboard (FS) while serving as a high-speed device for a PC (HS) - verified in Sections 3.33 and 3.34 of DS9405 Rev 13.

What is the purpose of the 64 KB CCM (core-coupled memory)?

The 64 KB CCM SRAM is directly connected to the Cortex-M4 CPU bus with zero wait states and no contention from DMA or other masters. It is used for time-critical code (e.g., ISRs), stack storage, or frequently accessed variables where deterministic latency is essential - such as real-time motor control loops or audio sample buffers - as specified in Section 3.6 of DS9405 Rev 13.