STMicroelectronics STM32F439VIT6

Overview

STM32F439VIT6 from STMicroelectronics is a 32-bit Arm® Cortex®-M4 MCU with FPU, operating at up to 180 MHz (225 DMIPS), featuring 2 MB flash, 256+4 KB SRAM (including 64 KB CCM), hardware crypto acceleration (AES-128/192/256, SHA-1/2, HMAC), and integrated LCD-TFT controller supporting up to 4096×2048 resolution at 83 MHz pixel clock - deployed in industrial HMI, medical imaging front-ends, and embedded vision gateways.

For engineers reviewing the STM32F439VIT6 datasheet, STM32F439VIT6 pinout, STM32F439VIT6 application, or STM32F439VIT6 equivalent, key selection considerations include LCD-TFT controller capability, dual USB OTG (FS + HS) with dedicated DMA, 10/100 Ethernet MAC with IEEE 1588v2 hardware support, and cryptographic co-processor integration for secure boot and firmware update.

Technical Context

The STM32F439VIT6 implements an adaptive real-time memory accelerator (ART Accelerator™) enabling zero-wait-state execution from flash at 180 MHz, paired with a Memory Protection Unit (MPU) for RTOS-grade isolation. Its dual-bank flash architecture supports true read-while-write operation for seamless firmware updates.

It integrates a dedicated LCD-TFT controller (LTDC) with programmable timing, Chrom-ART Accelerator™ (DMA2D) for 2D graphics composition, and a parallel camera interface (DCMI) capable of 54 MB/s throughput - all synchronized via a multi-AHB bus matrix with configurable priority arbitration.

Key Specifications

Pinout & Package

LQFP100 (14 × 14 mm) package with 100 pins, 1.0 mm pitch, exposed thermal pad. Pinout validated per STMicroelectronics DS9484 Rev 14, Section 4 "Pinouts and pin description".

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32F429ZIT6, the STM32F439VIT6 adds essential crypto acceleration and larger flash for secure firmware updates; versus STM32H743VIT6, it retains integrated LCD-TFT control at lower clock power, trading peak performance for display subsystem simplicity.

Availability

STM32F439VIT6 is available at Aetrix Electronics and suitable for industrial HMI, medical imaging gateways, and secure IoT edge nodes requiring stable component supply across extended product lifecycles.

Supply support for STM32F439VIT6 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 semiconductors since 1987.

The STM32F4-series targets high-performance embedded applications demanding real-time processing, rich connectivity, and graphical user interfaces - with the F439 variant specifically optimized for display-intensive and security-critical systems.

FAQ

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

The STM32F439VIT6'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 direct driving of QXGA (2048×1536), WQXGA (2560×1600), and custom industrial panels without external timing controllers.

Does STM32F439VIT6 support hardware-accelerated cryptographic operations?

Yes - it includes dedicated hardware accelerators for AES-128/192/256 encryption/decryption, triple DES, SHA-1/SHA-224/SHA-256 hashing, HMAC, and a NIST-compliant True Random Number Generator (TRNG), all accessible via the Crypto Processor Interface (CRYP) and HASH peripheral registers.

Can the STM32F439VIT6 operate in both USB OTG Full-Speed and High-Speed modes simultaneously?

No - the two USB OTG controllers are independent but share no internal resource conflict; however, simultaneous host/device operation requires careful power and descriptor management. The FS controller uses on-chip PHY, while HS requires external ULPI transceiver and dedicated DMA channel.

What is the function of the Chrom-ART Accelerator™ (DMA2D) in this MCU?

The Chrom-ART Accelerator™ is a dedicated 2D graphics processor that performs memory-to-memory transfers with alpha blending, color format conversion (e.g., RGB565 ↔ ARGB8888), and raster operations - reducing CPU load by up to 70% during GUI composition and enabling smooth 60 FPS rendering on TFT displays.