STMicroelectronics STM32F427VGT6TR

Overview

STM32F427VGT6TR 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, and integrated USB OTG HS/FS, 10/100 Ethernet MAC, and dual CAN 2.0B controllers. It targets high-performance embedded applications such as industrial HMI, motor control gateways, and networked medical devices requiring real-time processing and rich peripheral integration.

For engineers reviewing the STM32F427VGT6TR datasheet, STM32F427VGT6TR pinout, STM32F427VGT6TR application, or STM32F427VGT6TR equivalent, key selection criteria include its 180 MHz CPU clock, dual USB OTG capability (HS + FS), IEEE 1588v2–enabled Ethernet MAC, 168 I/Os with 90 MHz toggle rate, and LQFP100 package compatibility for space-constrained PCB layouts.

Technical Context

The STM32F427VGT6TR implements an Arm Cortex-M4 core with hardware FPU and Adaptive Real-Time Accelerator (ART™) enabling zero-wait-state execution from flash at 180 MHz. Its memory subsystem includes two-bank flash (allowing read-while-write), 64 KB CCM RAM for time-critical data, and flexible external memory controller supporting SDRAM, NOR, and NAND.

Peripherals are organized across multiple AHB/APB buses with dedicated DMA channels: dual USB OTG controllers (one with on-chip HS PHY + ULPI support), 10/100 Ethernet MAC with IEEE 1588v2 hardware timestamping, and dual bxCAN interfaces with programmable message filters and automatic retransmission logic.

Key Specifications

Pinout & Package

LQFP100 (14 × 14 mm, 0.5 mm pitch), ECOPACK2-compliant, with exposed thermal pad. Pin count and function mapping validated per STMicroelectronics DS9405 Rev 13, Section 4 "Pinouts and pin description".

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32F429VGT6, the STM32F427VGT6TR omits LTDC but retains identical CPU, memory, USB, CAN, and Ethernet capabilities-making it optimal for non-display-centric applications. Versus STM32F746VGT6, it trades raw compute headroom for deterministic hardware-accelerated Ethernet and lower BOM cost.

Availability

STM32F427VGT6TR is available at Aetrix Electronics and suitable for industrial HMI, networked motor control, and medical edge devices requiring stable component supply throughout extended production lifecycles.

Supply support for STM32F427VGT6TR 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.

The STM32F4-series targets high-performance embedded applications demanding real-time responsiveness, rich connectivity, and graphical user interfaces-optimized for industrial automation, medical equipment, and consumer electronics with complex peripheral integration.

FAQ

What is the maximum operating temperature range for STM32F427VGT6TR?

The STM32F427VGT6TR is rated for industrial temperature range: –40 °C to +85 °C ambient. This is confirmed in Section 6.3.1 "General operating conditions" of DS9405 Rev 13, with derating curves provided for sustained operation above 70 °C under high I/O toggle rates.

Does STM32F427VGT6TR support hardware encryption acceleration?

No-STM32F427VGT6TR does not include a dedicated cryptographic accelerator (e.g., no AES, SHA, or PKA engines). It relies on software libraries (STM32Cube Cryptographic Firmware Library) for encryption; secure key storage uses 4 KB backup SRAM with battery backup and write protection.

Can the USB OTG HS interface operate without an external ULPI PHY?

No-the USB OTG HS interface requires either an external ULPI PHY or connection to a dedicated HS-capable connector; the on-chip PHY supports only full-speed (12 Mbps). This is explicitly stated in Section 3.34 "Universal serial bus on-the-go high-speed (OTG_HS)" of the datasheet.

How many independent DMA streams are available for peripheral-to-memory transfers?

The STM32F427VGT6TR integrates a 16-stream general-purpose DMA controller (DMA2), with each stream supporting configurable priority, memory-to-memory, peripheral-to-memory, and memory-to-peripheral transfers-including circular and double-buffered modes for continuous data acquisition.