STMicroelectronics STM32F205VET7TR

Overview

STM32F205VET7TR from STMicroelectronics is a 32-bit Arm® Cortex®-M3 microcontroller operating at up to 120 MHz, featuring 512 KB Flash, 128+4 KB SRAM, dual CAN 2.0B interfaces, USB OTG HS/FS with dedicated DMA, and 10/100 Ethernet MAC with IEEE 1588v2 hardware support. It targets industrial connectivity gateways requiring real-time control, protocol bridging, and deterministic network timing.

For engineers reviewing the STM32F205VET7TR datasheet, STM32F205VET7TR pinout, STM32F205VET7TR application, or STM32F205VET7TR equivalent, key selection criteria include Ethernet MAC + USB OTG HS coexistence, 120 MHz deterministic execution via ART Accelerator™, 140 I/Os with 5 V tolerance, triple 12-bit ADCs (6 MSPS interleaved), and camera interface (DCMI) support for vision-enabled edge nodes.

Technical Context

The STM32F205VET7TR integrates a Cortex-M3 core with MPU and ART Accelerator™ enabling zero-wait-state execution from Flash at 120 MHz. Its multi-AHB bus matrix concurrently services CPU, DMA, and peripherals including Ethernet MAC, USB OTG HS, and DCMI without arbitration bottleneck.

It implements dual USB controllers (FS with on-chip PHY, HS with ULPI/PHY/DMA), a full-featured 10/100 Ethernet MAC with MII/RMII and IEEE 1588v2 timestamping, and three independent 12-bit ADCs supporting up to 24 channels and triple interleaved sampling at 6 MSPS - all synchronized via shared trigger sources and DMA request lines.

Key Specifications

Pinout & Package

LQFP100 (14 × 14 mm, 0.5 mm pitch) package with exposed thermal pad; RoHS-compliant, industrial temperature grade (–40°C to +105°C).

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32F205VET7TR, the F407 offers higher compute headroom but sacrifices hardware-accelerated time synchronization, while the H743 delivers advanced security and performance at the cost of pin-incompatibility and increased design complexity.

Availability

STM32F205VET7TR is available at Aetrix Electronics and suitable for industrial Ethernet gateways, multi-protocol edge controllers, and embedded vision nodes requiring stable component supply across extended product lifecycles.

Supply support for STM32F205VET7TR 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-grade components since 1987.

The STM32F2 series targets industrial connectivity applications demanding robust real-time performance, rich peripheral integration (Ethernet, USB OTG HS, CAN), and long-term supply assurance - optimized for gateway, motor control, and protocol-bridging systems.

FAQ

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

The STM32F205VET7TR achieves 120 MHz maximum CPU frequency using its Adaptive Real-Time Accelerator (ART Accelerator™), which caches instruction fetches from Flash memory to eliminate wait states. This enables sustained 150 DMIPS performance without external memory or complex cache management, verified under industrial temperature conditions (–40°C to +105°C) per DS6329 Rev 18.

Does this MCU support hardware IEEE 1588v2 timestamping?

Yes - the integrated 10/100 Ethernet MAC includes dedicated IEEE 1588v2 hardware timestamping logic with sub-microsecond accuracy. It provides timestamp registers for transmit/receive packets, fine-grained correction for delay asymmetry, and hardware event capture for precise PTP slave clock synchronization, as specified in Section 3.26 of the datasheet.

What camera interface capabilities does the STM32F205VET7TR provide?

The Digital Camera Interface (DCMI) supports 8–14-bit parallel input at up to 48 MB/s, compatible with common CMOS sensors. It includes hardware synchronization (VSYNC/HSYNC), pixel clock input, and data capture into memory via DMA. The interface operates independently of CPU load and supports embedded synchronization codes for MIPI CSI-2 bridge applications.

Is the USB OTG HS interface fully self-contained on-chip?

No - USB OTG HS requires an external ULPI PHY (e.g., SMSC USB334x) and associated 1.8 V supply, while the on-chip HS PHY is not present. However, the dedicated DMA channel, endpoint buffers, and OTG controller logic are fully integrated. In contrast, USB OTG FS uses the on-chip PHY and requires no external components beyond ESD protection.