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Home > Products > Integrated Circuits (ICs) > Embedded > Microcontrollers

STMicroelectronics STM32F205RGY6TR

Name: STM32F205RGY6TR
Brand: STMicroelectronics
SKU: STM32F205RGY6TR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: STM32F205RGY6TR

Manufacturer:: STMicroelectronics

Category:: Microcontrollers

Package:: 66-UFBGA, CSPBGA

Datasheet:: STM32F205RGY6TR.pdf

Description:: IC MCU 32BIT 1MB FLASH 66WLCSP

Quantity:: RFQ Add To RFQ list

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Product details

Overview

STM32F205RGY6TR 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, 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 protocol stacking, deterministic Ethernet timing, and multi-interface coexistence.

For engineers reviewing the STM32F205RGY6TR datasheet, STM32F205RGY6TR pinout, STM32F205RGY6TR application, or STM32F205RGY6TR equivalent, key selection criteria include Ethernet MAC+DMA integration, dual-CAN bus arbitration capability, camera interface (DCMI) timing compliance at 48 MB/s, and ART Accelerator™-enabled zero-wait-state Flash execution at 120 MHz.

Technical Context

The device implements a multi-AHB bus matrix architecture enabling concurrent access to Flash, SRAM, and peripherals without contention. Its ART Accelerator™ uses instruction prefetch and branch cache to eliminate Flash wait states at maximum CPU frequency, directly enabling deterministic real-time interrupt latency under 12 ns worst-case jitter.

Clock subsystem includes dual PLLs: main PLL for CPU/system clocks and audio PLL (PLLI2S) for I2S and DCMI synchronization; Ethernet MAC integrates MII/RMII PHY interface and IEEE 1588v2 timestamping logic in hardware, supporting precise PTP slave operation without software overhead.

Key Specifications

Parameter	Value and Actual Design Meaning
CPU Core	Arm Cortex-M3 @ 120 MHz: delivers 150 DMIPS with 1.25 DMIPS/MHz efficiency for deterministic control-loop execution.
Flash Memory	1 MB with ART Accelerator™: enables zero-wait-state code execution from Flash, eliminating pipeline stalls in time-critical ISRs.
SRAM	128 KB + 4 KB: 128 KB for application heap/stack, 4 KB battery-backed for RTC-critical data retention during Stop mode.
Ethernet Interface	10/100 MAC with dedicated DMA and IEEE 1588v2 hardware: supports sub-microsecond PTP timestamping and MII/RMII PHY interfacing without CPU intervention.
USB Interfaces	OTG FS + OTG HS: HS interface includes on-chip full-speed PHY and ULPI support, enabling simultaneous host/device roles with dedicated DMA channels.
Digital Camera Interface	DCMI with 8–14-bit parallel input @ 48 MB/s: supports raw Bayer sensor streaming with hardware sync (VSYNC/HSYNC/PCLK) and embedded FIFO buffering.
CAN Interfaces	2 × CAN 2.0B controllers: each supports 144 message objects, programmable bit timing, and automatic retransmission for robust fieldbus communication.

Pinout & Package

LQFP64 (10 × 10 mm, 0.5 mm pitch) package with exposed thermal pad; RoHS-compliant, industrial temperature grade (–40°C to +85°C).

Pin/Terminal	Circuit Role	Design Meaning
VDD, VDDA, VDDIO2	Power supply inputs	Separate analog/digital domains: VDDA powers ADC/DAC/RTC; VDDIO2 supplies I/O bank 2 (including Ethernet RMII pins) at 3.3 V.
PA0–PA15, PB0–PB15, etc.	General-purpose I/O	Up to 138 5 V-tolerant pins: enable direct interfacing with legacy 5 V logic without level shifters in mixed-voltage systems.
PH0, PH1	High-speed external oscillator	4–26 MHz crystal input: provides primary clock source for main PLL; supports auto-calibration via internal trimming registers.
PA12, PA11, PB14, PB15	USB OTG FS signals	Integrated full-speed PHY: eliminates need for external transceiver; PA11/PA12 are D+/D−; PB14/PB15 are ID/VBUS detection.
PC1–PC5, PD8–PD15	Ethernet RMII interface	Fixed pin mapping for REF_CLK, CRS_DV, RXD0–1, TXD0–1, TX_EN: requires strict PCB length matching (<5 mm skew) for 50 MHz RMII timing compliance.
PC6–PC9, PD3–PD6	DCMI interface	Parallel 8–14-bit data bus (PC6–PC9, PD3–PD6) with dedicated HSYNC/VSYNC/PCLK: supports synchronous capture of image sensors up to UXGA resolution.

Key Features

Feature	Design Value
ART Accelerator™	Eliminates Flash wait states at 120 MHz, reducing ISR latency by up to 35% vs. non-accelerated execution in real-time motor control loops.
Flexible Static Memory Controller (FSMC)	Supports NOR/NAND/PSRAM with configurable timing: enables direct attachment of external display controllers or FPGA-based co-processors without glue logic.
Dual CAN 2.0B controllers	Independent message RAM and filtering: allows simultaneous CANopen master/slave operation or redundant fieldbus paths in safety-critical nodes.
Embedded CRC calculation unit	Hardware-accelerated 32-bit CRC: processes memory blocks at 120 MB/s, offloading checksum computation from CPU during firmware OTA updates.
96-bit unique ID	Factory-programmed silicon serial number: enables secure device authentication in TLS handshakes and cryptographic key binding for IoT edge devices.

Applications

Industrial Ethernet Gateway

Smart Camera Node

Use Scenario: Protocol translation between Modbus TCP and CANopen in factory automation networks.

IC Role / Device Role / Timing Role: Central MCU managing dual Ethernet MAC and two CAN controllers with synchronized timestamping via IEEE 1588v2 hardware.

Use Value: Hardware PTP timestamping ensures <1 µs clock skew across distributed I/O modules, meeting IEC 61158 Class A determinism requirements.

Use Scenario: Embedded vision system capturing 720p@30fps video from CMOS sensor for real-time defect detection.

IC Role / Device Role / Timing Role: DCMI controller with 48 MB/s parallel interface and integrated DMA feeding frame buffers directly to ARM Cortex-M3 processing pipeline.

Use Value: On-chip DCMI FIFO and burst-capable DMA reduce CPU load to <8% during continuous streaming, freeing cycles for neural network inference.

Secure Remote Terminal Unit (RTU)

Multi-Protocol Industrial Controller

Use Scenario: Field-deployed RTU collecting analog sensor data and executing encrypted SCADA commands over cellular backhaul.

IC Role / Device Role / Timing Role: Secure boot loader using 96-bit unique ID and embedded RNG for TLS 1.3 session key generation; ADC sampling triggered by hardware timers.

Use Value: Factory-trimmed 16 MHz RC oscillator maintains ±1% accuracy over temperature, ensuring reliable UART communication with legacy PLCs without external crystal.

Use Scenario: Programmable logic controller supporting simultaneous EtherCAT, CAN FD, and RS-485 Modbus RTU fieldbus stacks.

IC Role / Device Role / Timing Role: Multi-AHB bus matrix isolates Ethernet, CAN, and UART DMA traffic to prevent peripheral bandwidth contention during high-throughput operations.

Use Value: 17 timers-including two 32-bit advanced-control units-enable precise PWM generation for servo drives while running EtherCAT cycle timing in parallel.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STM32F207ZGT6	LQFP144 package; adds second Ethernet MAC and USB HS PHY with ULPI interface; 1 MB Flash, same core/peripherals.	Required for dual-Ethernet redundancy or USB HS peripheral mode with external PHY.	Select when board layout accommodates larger footprint and dual-MAC failover or ULPI-based USB HS design is mandatory.
STM32H743ZIT6	Arm Cortex-M7 @ 480 MHz; dual-core option; 2 MB Flash; no native Ethernet MAC (requires external PHY + software stack); higher power consumption.	Suitable for AI inference at edge but lacks integrated IEEE 1588v2 hardware and requires external Ethernet PHY.	Choose only if >200 DMIPS compute or dual-core RTOS partitioning is required; avoid if hardware timestamping or BOM cost sensitivity exists.

Compared with STM32F207ZGT6, the STM32F205RGY6TR trades dual Ethernet for smaller LQFP64 packaging and lower system cost, while retaining identical CAN, USB, and DCMI capabilities; versus STM32H743ZIT6, it offers superior real-time determinism via integrated Ethernet MAC and lower power, at the expense of raw compute throughput.

Availability

STM32F205RGY6TR is available at Aetrix Electronics and suitable for industrial Ethernet gateways, smart camera nodes, secure RTUs, and multi-protocol controllers requiring stable component supply across extended product lifecycles.

Supply support for STM32F205RGY6TR 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, specializing in microcontrollers, power management, and sensing technologies for industrial, automotive, and consumer markets.

The STM32F2 series targets high-performance industrial connectivity applications, emphasizing integrated real-time networking (Ethernet/CAN/USB), deterministic timing, and robust peripheral coexistence for factory automation and building control systems.

FAQ

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

The STM32F205RGY6TR achieves 120 MHz CPU frequency using its main PLL driven by an external 4–26 MHz crystal or internal 16 MHz RC oscillator. The ART Accelerator™-comprising prefetch buffer and branch cache-enables zero-wait-state execution from Flash memory, ensuring sustained 150 DMIPS performance without instruction pipeline stalls.

Does this MCU support hardware-accelerated cryptography?

No, the STM32F205RGY6TR does not include a dedicated cryptographic processor or AES engine. It relies on software libraries for encryption; however, its 96-bit unique ID and true random number generator (RNG) provide foundational security primitives for key derivation and secure boot implementations.

Can the Ethernet MAC operate in both MII and RMII modes simultaneously?

No, the Ethernet MAC supports either MII or RMII physical layer interface-not both simultaneously. Pin configuration determines mode at reset: RMII uses 9 pins (REF_CLK, CRS_DV, RXD0–1, TXD0–1, TX_EN), while MII requires 16 pins; mode selection is fixed by hardware pin strapping and cannot be dynamically switched in runtime.

What is the role of the Flexible Static Memory Controller (FSMC)?

The FSMC provides asynchronous/synchronous interface to external memories including NOR/NAND Flash, PSRAM, and LCD controllers. It supports programmable timing parameters (address setup/hold, data setup) and 8-/16-bit data bus widths, enabling direct connection of external displays, FPGA co-processors, or legacy memory-mapped peripherals without external logic.

STM32F205RGY6TR Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Package/Case:: 66-UFBGA, CSPBGA

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:: 1MB (1M x 8)

Program Memory Type:: FLASH

EEPROM Size:: -

RAM Size:: 132K 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:

STM32F205RGY6TR FAQ

1.How can I place an order for STM32F205RGY6TR through Aetrix?

Please submit a Request for Quotation (RFQ) for STM32F205RGY6TR 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 STM32F205RGY6TR reliable?

The price and inventory of STM32F205RGY6TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32F205RGY6TR is usually 5 days.

3.What payment methods are accepted for STM32F205RGY6TR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32F205RGY6TR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for STM32F205RGY6TR?

STM32F205RGY6TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your STM32F205RGY6TR 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 STM32F205RGY6TR?

For technical support, including STM32F205RGY6TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32F205RGY6TR requirements.

6.How does Aetrix verify that STM32F205RGY6TR is sourced from the original manufacturer or authorized distributors?

All STM32F205RGY6TR 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 STM32F205RGY6TR meets industry standards.

7.What is the process for return or replacement of STM32F205RGY6TR?

All STM32F205RGY6TR units undergo pre-shipment inspection (PSI). If there is an issue with STM32F205RGY6TR, 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 STM32F205RGY6TR part is unused and in its original packaging.

Return procedure for STM32F205RGY6TR:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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