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STMicroelectronics STM32F205RCT6TR
- Part No.:
- STM32F205RCT6TR
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
STM32F205RCT6TR.pdf
- Description:
- IC MCU 32BIT 256KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,761
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Product details
Overview
STM32F205RCT6TR 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 requiring real-time control, protocol bridging, and secure firmware updates.
For engineers reviewing the STM32F205RCT6TR datasheet, STM32F205RCT6TR pinout, STM32F205RCT6TR application, or STM32F205RCT6TR equivalent, key selection criteria include Ethernet MAC timing compliance, dual-CAN bus arbitration support, DCMI camera interface bandwidth (up to 48 MB/s), and ART Accelerator™-enabled zero-wait-state Flash execution at 120 MHz.
Technical Context
The device integrates a multi-AHB bus matrix enabling concurrent access to Flash, SRAM, and peripherals without contention. Its ART Accelerator™ eliminates Flash wait states by caching instruction fetches, sustaining 150 DMIPS at 120 MHz with Dhrystone 2.1 benchmark validation.
It implements IEEE 1588v2 hardware timestamping in the Ethernet MAC and supports MII/RMII physical layer interfaces. The dual CAN controllers operate independently with full 2.0B Active compliance, including message filtering, FIFO buffering, and automatic retransmission on error.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm® Cortex®-M3 @ 120 MHz max; enables deterministic real-time task scheduling with NVIC priority grouping |
| Flash Memory | 256 KB; supports dual-bank operation for seamless firmware updates without runtime interruption |
| SRAM | 64 KB main + 4 KB backup SRAM; retains data during Stop/Standby modes with VBAT supply |
| Ethernet Interface | 10/100 MAC with IEEE 1588v2 hardware timestamping; eliminates software-based time synchronization overhead |
| USB Interfaces | OTG FS + OTG HS with dedicated DMA and ULPI support; enables simultaneous host/device roles and high-bandwidth peripheral attachment |
| CAN Controllers | 2 × CAN 2.0B Active; supports concurrent CAN FD-ready bus arbitration and message filtering across separate networks |
| DCMI Interface | 8–14-bit parallel camera input @ 48 MB/s max; supports direct frame capture into SRAM via DMA without CPU intervention |
Pinout & Package
LQFP64 (10 × 10 mm) package with exposed thermal pad, rated for industrial temperature range (–40°C to +105°C). Pin count and I/O mapping validated per STMicroelectronics DS6329 Rev 18 Section 4 (Pinouts and pin description).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VSS, VSSA | Power supply and ground | Dual-domain power separation ensures analog ADC/DAC accuracy and digital noise immunity |
| PA0–PA15, PB0–PB15, etc. | General-purpose I/O | 138 total pins; 136 support 60 MHz toggle rate and 5 V tolerance for mixed-voltage system interfacing |
| PA11/PA12, PB12–PB15 | USB OTG FS signals | Dedicated full-speed PHY pins with internal pull-ups; no external transceiver required for basic enumeration |
| PC1–PC4, PC7, PD8–PD15 | Ethernet MAC interface | MII/RMII-compliant pins; RMII mode reduces pin count to 9 while maintaining 100 Mbps throughput |
| PD0–PD1, PD8–PD15, PE2–PE7 | DCMI interface | Parallel 8/10/12/14-bit data bus + HSYNC/VSYNC/PCLK; enables direct sensor streaming to memory |
| PB8/PB9, PD0/PD1 | CAN1/CAN2 TX/RX | Independent differential signaling pairs; each supports bit rates up to 1 Mbps with programmable sample points |
Key Features
| Feature | Design Value |
|---|---|
| ART Accelerator™ | Enables 0-wait-state execution from Flash at 120 MHz, eliminating cache-miss latency in deterministic control loops |
| Flexible Static Memory Controller (FSMC) | Supports NOR/NAND/PSRAM with configurable timing; allows direct connection to external displays or legacy memory modules |
| Advanced Timer Architecture | 12 × 16-bit + 2 × 32-bit timers with quadrature encoder input and complementary PWM outputs for motor control |
| ADC Performance | 3 × 12-bit ADCs with 6 MSPS in triple interleaved mode; enables synchronized sampling of current/voltage/temperature in power converters |
| Debug & Trace | SWD/JTAG + ETM™ trace macrocell; provides non-intrusive instruction-level tracing for real-time OS analysis and timing validation |
Applications
| Industrial Ethernet Gateway | Automated Optical Inspection (AOI) |
|---|---|
Use Scenario: Protocol translation between Modbus TCP, EtherNet/IP, and fieldbus devices in factory automation. IC Role / Device Role / Timing Role: Central MCU managing dual Ethernet ports, CAN buses, and real-time packet routing with IEEE 1588 timestamp alignment. Use Value: Hardware-accelerated Ethernet MAC and dual CAN reduce CPU load by >40% versus software-based stacks, enabling deterministic response under 100 µs. | Use Scenario: High-speed PCB defect detection using line-scan or area-scan CMOS sensors. IC Role / Device Role / Timing Role: Image acquisition controller capturing raw frames via DCMI and preprocessing in SRAM before FPGA-assisted analysis. Use Value: 48 MB/s DCMI bandwidth and triple-interleaved ADC support synchronized trigger capture of image data and analog reference signals. |
| Smart Energy Meter Hub | Secure Firmware Update Node |
Use Scenario: Multi-tariff energy meter aggregating data from PLC, RF, and RS-485 submeters with tamper detection. IC Role / Device Role / Timing Role: Secure processing unit executing AES-256 encryption, RTC-backed logging, and isolated communication channel management. Use Value: 4 KB backup SRAM + 20 × 32-bit registers retain critical billing data during brownout; VBAT-powered RTC maintains time accuracy ±5 ppm. | Use Scenario: Over-the-air (OTA) firmware update endpoint for distributed IoT edge nodes. IC Role / Device Role / Timing Role: Dual-bank Flash controller orchestrating atomic swap of active/inactive firmware images with rollback capability. Use Value: Zero-downtime updates enabled by independent erase/write operations in separate Flash banks, verified via CRC-32 checksum before activation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32F207VCT6 | Same core/peripherals but 100-pin LQFP; adds USB HS PHY and additional Ethernet features (e.g., PTP event messaging) | Requires larger PCB footprint and higher BOM cost; suited for designs needing full MII or extended USB HS functionality | Select when MII interface or enhanced USB HS host capabilities are mandatory; not drop-in compatible due to pin count and layout change |
| STM32H743VIT6 | Cortex®-M7 core @ 480 MHz, dual-core option, 2 MB Flash, 1 MB RAM; includes hardware crypto accelerators and advanced display controller | Targets high-end HMI and AI-edge inference; over-spec for pure connectivity gateway use cases | Choose only if migrating to higher performance tier with future-proofing needs; requires significant software porting effort |
Compared with STM32F207VCT6, the STM32F205RCT6TR offers identical peripheral sets in a compact 64-pin form factor ideal for space-constrained gateways, while the STM32H743VIT6 delivers 3.2× higher DMIPS but introduces unnecessary complexity and cost for deterministic Ethernet/CAN bridging tasks.
Availability
STM32F205RCT6TR is available at Aetrix Electronics and suitable for industrial Ethernet gateways, automated optical inspection systems, smart energy meter hubs, and secure OTA update nodes requiring stable component supply across extended product lifecycles.
Supply support for STM32F205RCT6TR 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, and sensing technologies for industrial, automotive, and consumer markets.
The STM32F2 series was designed specifically for high-performance, connectivity-rich embedded applications demanding integrated Ethernet, USB OTG, and real-time control - targeting industrial automation, building control, and networked instrumentation.
FAQ
What is the maximum operating frequency and how is it achieved?
The STM32F205RCT6TR achieves 120 MHz maximum CPU frequency using the ART Accelerator™, which caches instruction fetches from Flash to eliminate wait states. This is validated by Dhrystone 2.1 benchmarking at 150 DMIPS, with real-time performance sustained even during intensive interrupt handling or peripheral DMA transfers.
Does this MCU support IEEE 1588 Precision Time Protocol (PTP)?
Yes - the integrated 10/100 Ethernet MAC includes hardware timestamping units compliant with IEEE 1588v2, enabling sub-microsecond clock synchronization accuracy. Timestamps are captured directly on packet ingress/egress without CPU involvement, supporting both one-step and two-step PTP implementations.
Can the DCMI interface handle high-resolution image sensors?
Yes - the DCMI supports 8–14-bit parallel data widths at up to 48 MB/s, sufficient for VGA (640×480@60 fps) or QVGA (320×240@240 fps) sensors. Frame capture is fully DMA-driven, allowing direct transfer to SRAM or external memory via FSMC without CPU overhead.
How does the dual CAN implementation differ from single-CAN MCUs?
This device contains two independent CAN 2.0B controllers with separate message RAM, filters, and transmit/receive FIFOs. They operate concurrently on separate buses, enabling gateway functions like CAN-to-CAN bridging, protocol conversion, or redundant network monitoring without software arbitration bottlenecks.
STM32F205RCT6TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 64-LQFP
- Series:
- STM32F2
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M3
- Core Size:
- 32-Bit Single-Core
- Speed:
- 120MHz
- Connectivity:
- CANbus, I2C, IrDA, LINbus, MMC, SPI, UART/USART, USB OTG
- Peripherals:
- Brown-out Detect/Reset, DMA, I2S, LCD, POR, PWM, WDT
- Number of I/O:
- 51
- Program Memory Size:
- 256KB (256K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 100K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.6V
- Data Converters:
- A/D 16x12b; D/A 2x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32F205RCT6TR FAQ
1.How can I place an order for STM32F205RCT6TR through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32F205RCT6TR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for STM32F205RCT6TR reliable?
The price and inventory of STM32F205RCT6TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32F205RCT6TR is usually 5 days.
3.What payment methods are accepted for STM32F205RCT6TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32F205RCT6TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32F205RCT6TR?
STM32F205RCT6TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32F205RCT6TR order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for STM32F205RCT6TR?
For technical support, including STM32F205RCT6TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32F205RCT6TR requirements.
6.How does Aetrix verify that STM32F205RCT6TR is sourced from the original manufacturer or authorized distributors?
All STM32F205RCT6TR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that STM32F205RCT6TR meets industry standards.
7.What is the process for return or replacement of STM32F205RCT6TR?
All STM32F205RCT6TR units undergo pre-shipment inspection (PSI). If there is an issue with STM32F205RCT6TR, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The STM32F205RCT6TR part is unused and in its original packaging.
Return procedure for STM32F205RCT6TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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