STMicroelectronics STM32F439ZGY6TR

Overview

STM32F439ZGY6TR from STMicroelectronics is a 32-bit Arm® Cortex®-M4 microcontroller 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 - used in high-resolution industrial HMI and embedded multimedia systems.

For engineers reviewing the STM32F439ZGY6TR datasheet, STM32F439ZGY6TR pinout, STM32F439ZGY6TR application, or STM32F439ZGY6TR equivalent, key selection criteria include LCD-TFT controller capability, dual USB OTG (FS/HS) with dedicated DMA, 10/100 Ethernet MAC with IEEE 1588v2 support, and cryptographic acceleration for secure boot and firmware updates.

Technical Context

The STM32F439ZGY6TR implements an Arm Cortex-M4 core with FPU and Adaptive Real-time Accelerator (ART Accelerator™) enabling zero-wait-state execution from flash at 180 MHz. It integrates a dedicated LCD-TFT controller (LTDC) with programmable timing and Chrom-ART Accelerator™ (DMA2D) for hardware-accelerated 2D graphics composition.

Its connectivity stack includes dual CAN 2.0B interfaces, USB 2.0 HS/FS OTG with on-chip PHY and ULPI support, 10/100 Ethernet MAC with MII/RMII and IEEE 1588v2 hardware timestamping, and a parallel 8–14-bit DCMI interface capable of 54 MB/s camera data capture.

Key Specifications

Pinout & Package

STM32F439ZGY6TR is housed in a 176-ball Ultra-Fine Pitch Ball Grid Array (UFBGA176) package measuring 10 mm × 10 mm with 0.65 mm ball pitch. The package supports 166 5 V-tolerant I/Os and features dedicated power/ground ball arrangements for noise-sensitive analog and high-speed digital domains.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32F439ZGY6TR, the STM32F767ZIT6 trades display integration for higher compute density and cache, while the STM32H743ZIT6 shifts to MIPI DSI and dual-core architecture - making the F439 optimal for cost-sensitive, high-resolution parallel-TFT applications requiring crypto and Ethernet without display controller overhead.

Availability

STM32F439ZGY6TR is available at Aetrix Electronics and suitable for industrial HMI, secure gateways, medical imaging front-ends, and HD machine vision controllers requiring stable component supply across multi-year production cycles.

Supply support for STM32F439ZGY6TR 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 advanced graphics - specifically optimized for industrial automation, medical devices, and human-machine interfaces where integration, security, and display capability are critical.

FAQ

What is the maximum operating frequency and how is it achieved?

The STM32F439ZGY6TR achieves 180 MHz maximum CPU frequency using its Arm Cortex-M4 core with FPU and the Adaptive Real-time Accelerator (ART Accelerator™). This patented technology enables zero-wait-state execution from internal flash memory by prefetching and caching instructions, eliminating flash access bottlenecks. The 180 MHz rating is validated across the full temperature and voltage range (1.7–3.6 V) per datasheet DS9484 Rev 14 Section 6.3.1.

Does this MCU support hardware-accelerated graphics rendering?

Yes - the STM32F439ZGY6TR integrates the Chrom-ART Accelerator™ (DMA2D), a dedicated 2D graphics accelerator that performs memory copy, pixel format conversion, and alpha-blending operations independently of the CPU. It supports ARGB8888, RGB888, RGB565, and ARGB1555 formats with hardware layer composition, reducing GUI rendering latency by up to 70% compared to software-only implementations.

What are the key differences between STM32F439xx and STM32F437xx families?

The STM32F439xx adds an integrated LCD-TFT controller (LTDC) and Chrom-ART Accelerator™ not present in the F437xx series. It also includes additional hardware crypto features (full SHA-2 support) and enhanced DCMI capabilities. Both share identical CPU, memory, USB, Ethernet, and peripheral counts - but only F439xx supports native parallel RGB display output up to 4096×2048 resolution.

Which external memories are supported by the Flexible Memory Controller (FMC)?

The FMC supports SRAM, PSRAM, SDRAM/LPSDR SDRAM, NOR Flash, NAND Flash, and CompactFlash with up to 32-bit data bus width and configurable timing parameters. It provides dedicated address/data multiplexing modes and wait-state control for each memory type, enabling direct connection of up to 4 memory banks - verified in DS9484 Section 3.9 and Table 11 (FMC pin definitions).