STMicroelectronics STM32F205RGT7

Overview

STM32F205RGT7 from STMicroelectronics is a 32-bit Arm® Cortex®-M3 microcontroller operating at up to 120 MHz, featuring 1 MB Flash, 128 + 4 KB SRAM, dual CAN 2.0B interfaces, 10/100 Ethernet MAC with IEEE 1588v2 hardware support, and USB OTG HS/FS with dedicated DMA - deployed in industrial gateways requiring real-time protocol bridging and fieldbus-to-Ethernet convergence.

For engineers reviewing the STM32F205RGT7 datasheet, STM32F205RGT7 pinout, STM32F205RGT7 application, or STM32F205RGT7 equivalent, key selection considerations include Ethernet MAC timing compliance, dual-CAN arbitration latency, DCMI camera interface bandwidth (48 MB/s), ART Accelerator™-enabled zero-wait-state Flash execution, and VBAT-backed RTC with 20×32-bit backup registers.

Technical Context

The STM32F205RGT7 integrates a Cortex-M3 core with Adaptive Real-Time Accelerator (ART Accelerator™) enabling deterministic 0-wait-state execution from Flash at 120 MHz, alongside a multi-AHB bus matrix for concurrent peripheral access. Its memory subsystem includes 1 MB Flash with ECC protection, 128 KB main SRAM, 4 KB battery-backed SRAM, and 512-byte OTP.

Peripheral architecture features dual-domain clocking (APB1/APB2), dedicated Ethernet DMA with MII/RMII support, dual USB controllers (OTG_FS + OTG_HS with ULPI), and a parallel digital camera interface (DCMI) with hardware synchronization and 8–14-bit pixel depth handling - all coordinated via NVIC with 84 programmable interrupt channels.

Key Specifications

Pinout & Package

LQFP64 (10 × 10 mm, 0.5 mm pitch) with exposed thermal pad; RoHS-compliant, industrial temperature range (–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 STM32F205RGT7, the STM32F407VGT6 trades integrated Ethernet and dual CAN for FPU and higher clock speed, while the STM32H743VIT6 shifts focus to security and performance at the expense of out-of-box industrial networking readiness - making the F205RGT7 optimal for cost-sensitive, time-critical Ethernet/CAN gateway designs.

Availability

STM32F205RGT7 is available at Aetrix Electronics and suitable for industrial gateways, fieldbus bridges, smart camera nodes, and secure HMIs requiring stable component supply across extended product lifecycles.

Supply support for STM32F205RGT7 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, specializing in microcontrollers, power management, sensors, and automotive ICs.

The STM32F2 series targets industrial connectivity applications, emphasizing integrated Ethernet, dual CAN, USB OTG, and real-time determinism - designed specifically for protocol-aware edge devices in factory automation and energy infrastructure.

FAQ

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

The STM32F205RGT7 achieves 120 MHz maximum CPU frequency using its internal PLL driven by either the HSE (4–26 MHz crystal) or HSI (16 MHz RC). The ART Accelerator™ enables zero-wait-state execution from Flash memory at this speed, verified by Dhrystone 2.1 benchmark yielding 150 DMIPS. No external clock source beyond the configured oscillator is required.

Does the part include hardware support for IEEE 1588 Precision Time Protocol?

Yes, the STM32F205RGT7's integrated 10/100 Ethernet MAC includes full IEEE 1588v2 hardware timestamping capability - with dedicated registers for ingress/egress packet timestamping, fine-grained sub-nanosecond correction, and PTP event message handling. This eliminates software-based timestamp jitter in time-critical industrial networks.

How many CAN interfaces does the STM32F205RGT7 support and what version?

The STM32F205RGT7 integrates two independent CAN 2.0B controllers, each supporting both standard (11-bit) and extended (29-bit) identifier formats, bit rates up to 1 Mbit/s, and programmable filters. They operate concurrently without shared resources, enabling dual-bus diagnostics or redundancy in vehicle and machinery control systems.

What package type and pin count does STM32F205RGT7 use?

The STM32F205RGT7 uses an LQFP64 package (10 × 10 mm, 0.5 mm pitch) with 64 leads and an exposed thermal pad. It provides 51 GPIOs - all 5 V-tolerant - and matches the pinout defined in ST's DS6329 Rev 18 datasheet Section 4, including dedicated RMII, DCMI, and USB OTG FS signal assignments.