STMicroelectronics STM32F427VGT6

Overview

STM32F427VGT6 from STMicroelectronics is a 32-bit Arm® Cortex®-M4 microcontroller with FPU, operating up to 180 MHz (225 DMIPS), featuring 1 MB flash, 256 KB SRAM + 4 KB backup SRAM, USB OTG HS/FS, 10/100 Ethernet MAC, and LCD-TFT controller - deployed in industrial HMI, motor control gateways, and networked medical devices.

For engineers reviewing the STM32F427VGT6 datasheet, STM32F427VGT6 pinout, STM32F427VGT6 application, or STM32F427VGT6 equivalent, key selection criteria include dual USB OTG support with dedicated DMA, IEEE 1588v2-capable Ethernet MAC, triple 12-bit ADCs (7.2 MSPS interleaved), and 168 I/Os with 90 MHz toggle rate and 5 V tolerance on 166 pins.

Technical Context

The device integrates an Adaptive Real-time Accelerator (ART Accelerator™) enabling zero-wait-state execution from flash at 180 MHz, alongside a Memory Protection Unit (MPU) and dual-bank flash supporting read-while-write. Its multi-AHB bus matrix enables concurrent access to flash, SRAM, and peripherals without contention.

It features two independent USB controllers (OTG_FS with on-chip PHY and OTG_HS with ULPI interface and dedicated DMA), a 10/100 Ethernet MAC with hardware IEEE 1588v2 timestamping, and a parallel camera interface (DCMI) supporting 54 MB/s throughput - all synchronized via a flexible clock tree with multiple PLLs (main, audio, SAI).

Key Specifications

Pinout & Package

LQFP100 package: 14 × 14 mm body, 0.5 mm pitch, exposed thermal pad (not electrically connected), RoHS-compliant ECOPACK2 finish.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32F429VIT6, the STM32F427VGT6 omits LTDC but retains identical USB/Ethernet/ADC capabilities - making it ideal for headless or external-display systems. Versus STM32H743VIT6, it delivers proven real-time determinism at lower power and BOM cost, without over-provisioning for non-AI workloads.

Availability

STM32F427VGT6 is available at Aetrix Electronics and suitable for industrial HMI, networked motor control, and portable medical imaging requiring stable component supply through 2030.

Supply support for STM32F427VGT6 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, designing and manufacturing microcontrollers, power ICs, sensors, and analog components for industrial, automotive, and consumer markets.

The STM32F4 series targets high-performance real-time embedded applications demanding rich connectivity, graphics acceleration, and deterministic timing - optimized for industrial automation, medical devices, and smart infrastructure.

FAQ

Does STM32F427VGT6 support hardware encryption?

No, STM32F427VGT6 does not integrate dedicated cryptographic accelerators (AES, SHA, PKA). It includes a true random number generator (RNG) and CRC calculation unit, but symmetric/asymmetric encryption must be implemented in software or via external co-processors. For hardware crypto, consider STM32H7 or STM32L5 series.

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

The STM32F427VGT6 does not include an LCD-TFT controller - that feature is exclusive to the STM32F429xx line. This part supports parallel display interfaces via GPIO or FSMC but lacks LTDC, Chrom-ART, or built-in display timing generators. External display controllers or FPGA-based solutions are required for high-resolution TFT driving.

Can STM32F427VGT6 run FreeRTOS with Ethernet and USB stacks simultaneously?

Yes. With 256 KB SRAM and 1 MB flash, the device supports concurrent FreeRTOS tasks managing Ethernet MAC (with lwIP), USB device/host stacks, and application logic. ST provides HAL drivers and middleware (USB Device Library, ETH HAL, FatFS) validated for this configuration. Critical timing paths (e.g., Ethernet IRQ, USB SOF) are prioritized via NVIC nesting.

Is the 10/100 Ethernet MAC compliant with IEEE 802.3?

Yes, the integrated Ethernet MAC fully complies with IEEE 802.3-2015 for 10BASE-T and 100BASE-TX operation. It supports MII and RMII physical layer interfaces, full-duplex/half-duplex modes, auto-negotiation, and hardware-accelerated IEEE 1588v2 timestamping - meeting requirements for industrial Ethernet protocols including EtherCAT slave (with external PHY) and PROFINET IRT.