STMicroelectronics STM32F205RCT7

Overview

STM32F205RCT7 from STMicroelectronics is a 32-bit Arm® Cortex®-M3 microcontroller operating at up to 120 MHz, featuring 256 KB Flash, 64 + 4 KB SRAM, USB OTG HS/FS, 10/100 Ethernet MAC, and dual CAN 2.0B interfaces. It targets industrial connectivity gateways, motor control with real-time Ethernet feedback, and embedded vision systems using its 8–14-bit parallel camera interface.

For engineers reviewing the STM32F205RCT7 datasheet, STM32F205RCT7 pinout, STM32F205RCT7 application, or STM32F205RCT7 equivalent, key selection criteria include Ethernet MAC timing compliance (IEEE 1588v2 hardware support), DCMI throughput (up to 48 MB/s), ART Accelerator™-enabled zero-wait-state Flash execution, and 138 5 V-tolerant I/Os for mixed-voltage system interfacing.

Technical Context

The device integrates a multi-AHB bus matrix enabling concurrent access to Flash, SRAM, and peripherals, with dedicated DMA channels for Ethernet (10/100 MAC), USB OTG HS (with ULPI), and SDIO. Its clock system includes dual PLLs - main PLL for CPU/system clocks and audio PLL (PLLI2S) for precise I2S sampling - plus independent 32 kHz RTC oscillator with calibration.

Peripheral coherency is maintained via nested vectored interrupt controller (NVIC) supporting 84 maskable interrupts, and external interrupt/event controller (EXTI) routing GPIO, RTC, and communication interface events. The flexible static memory controller (FSMC) supports NOR, PSRAM, NAND, and CompactFlash with programmable timing registers for legacy parallel memory interfacing.

Key Specifications

Pinout & Package

LQFP64 package (10 × 10 mm, 0.5 mm pitch), RoHS-compliant, with exposed thermal pad. Pin count and signal mapping align with STM32F205xx family standardization per DS6329 Rev 18 Section 4.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar microcontroller applications.

Compared with STM32F207VCT6, the STM32F205RCT7 offers superior I/O voltage tolerance and integrated DCMI for vision, while STM32H743VIT6 trades integrated Ethernet for raw performance and cryptographic acceleration - making the F205RCT7 optimal for cost-sensitive, mixed-interface industrial nodes requiring deterministic real-time response.

Availability

STM32F205RCT7 is available at Aetrix Electronics and suitable for industrial Ethernet gateways, real-time motor control systems, and embedded vision nodes requiring stable component supply and long-term production support.

Supply support for STM32F205RCT7 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 high-performance industrial connectivity applications, emphasizing real-time Ethernet, USB OTG, and parallel camera interfacing with deterministic low-latency execution.

FAQ

What is the maximum operating frequency and associated performance metric for the STM32F205RCT7?

The STM32F205RCT7 operates at a maximum CPU frequency of 120 MHz, delivering 150 DMIPS (Dhrystone 2.1) and 1.25 DMIPS/MHz. This performance is sustained via the ART Accelerator™, which enables zero-wait-state execution from Flash memory - verified in DS6329 Rev 18 Section 2.2 and Table 6.3.10.

Does the STM32F205RCT7 support hardware-accelerated IEEE 1588v2 timestamping for Ethernet synchronization?

Yes, the integrated 10/100 Ethernet MAC includes dedicated hardware timestamping logic compliant with IEEE 1588v2, enabling sub-microsecond precision frame timestamping at the MAC layer. This capability is documented in DS6329 Rev 18 Section 3.26 and electrical timing specs in Table 6.3.26.

What are the supported camera interface data widths and maximum throughput of the DCMI peripheral?

The DCMI supports 8-, 10-, 12-, and 14-bit parallel data buses with a maximum throughput of 48 MB/s, corresponding to VGA resolution at 30 fps with raw Bayer data. Timing specifications, including pixel clock limits and setup/hold requirements, are defined in DS6329 Rev 18 Table 6.3.26.

How many 5 V-tolerant I/O pins does the STM32F205RCT7 provide, and which package variant confirms this count?

The STM32F205RCT7 in LQFP64 package provides up to 138 5 V-tolerant I/Os, as confirmed in DS6329 Rev 18 Section 2.17 and Table 2. This count is consistent across all STM32F205xx variants regardless of Flash size, and applies specifically to the RCT7 ordering code per Table 1 and Section 8.