STMicroelectronics STM32F205RGT6V

Overview

STM32F205RGT6V 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 deterministic network timing.

For engineers reviewing the STM32F205RGT6V datasheet, STM32F205RGT6V pinout, STM32F205RGT6V application, or STM32F205RGT6V equivalent, key selection criteria include Ethernet MAC + USB HS coexistence, ART Accelerator™-enabled zero-wait-state Flash execution, 140 I/Os with 5 V tolerance, and DCMI camera interface timing compliance up to 48 MB/s.

Technical Context

The STM32F205RGT6V integrates a Cortex-M3 core with Adaptive Real-Time (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, 128 KB main SRAM, 4 KB backup SRAM, and 512-byte OTP.

Peripheral architecture features dual independent DMA controllers (16-stream general-purpose + dedicated Ethernet/USB DMAs), flexible static memory controller (FSMC) supporting NAND/NOR/PSRAM, and dual-clock domain timers (APB1/APB2) with quadrature encoder and PWM capture capability across 17 timers.

Key Specifications

Pinout & Package

LQFP64 package (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 microcontroller applications.

Compared with STM32F205RGT6V, STM32F207VGT6 removes DCMI while retaining identical Ethernet and USB capabilities, whereas STM32F407VGT6 trades integrated connectivity for computational performance - making the RGT6V optimal for balanced real-time I/O, vision, and deterministic networking.

Availability

STM32F205RGT6V is available at Aetrix Electronics and suitable for industrial gateways, PLC controllers, embedded vision systems, and secure remote I/O modules requiring stable component supply across extended product lifecycles.

Supply support for STM32F205RGT6V 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 with vertical manufacturing and long-term industrial support.

The STM32F2 series targets high-performance industrial applications requiring rich connectivity, real-time determinism, and robust peripheral integration - specifically designed for protocol gateways, motor control, and embedded vision where Ethernet, USB, and analog precision converge.

FAQ

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

The STM32F205RGT6V achieves 120 MHz maximum CPU frequency using its internal PLL driven by 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 per Dhrystone 2.1 benchmark yielding 150 DMIPS. No external clock source beyond the HSE/HSE bypass mode is required for full-speed operation.

Does this MCU support IEEE 1588 Precision Time Protocol?

Yes - the integrated 10/100 Ethernet MAC includes full IEEE 1588v2 hardware timestamping capability, with dedicated registers for transmit/receive packet timestamping, fine correction registers, and nanosecond-resolution counters. This allows sub-microsecond synchronization accuracy without software timestamping overhead or external PTP hardware.

What are the power supply requirements for VDDA and VDDIO2?

VDDA must be supplied between 2.4 V and 3.6 V for proper ADC/DAC operation and must be decoupled with ≥100 nF near the pin. VDDIO2 operates from 1.8 V to 3.6 V and powers the 5 V-tolerant I/O banks (GPIOs, USART, SPI, I2C); it may be tied to VDD if 5 V tolerance is not needed, but separation improves noise immunity in mixed-voltage systems.

Can the DCMI interface operate with common CMOS image sensors?

Yes - the DCMI supports 8–14-bit parallel data buses with programmable polarity for HSYNC/VSYNC/PCLK, and hardware frame start/end detection. It interfaces directly with sensors such as OV2640, MT9V034, and AR0130 without external glue logic, achieving up to 48 MB/s throughput - sufficient for VGA resolution at 30 fps with raw Bayer data.