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STMicroelectronics STM32F205VBT6
- Part No.:
- STM32F205VBT6
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
STM32F205VBT6.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:510
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Product details
Overview
STM32F205VBT6 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 controllers - deployed in industrial gateways requiring real-time connectivity and deterministic communication.
For engineers reviewing the STM32F205VBT6 datasheet, STM32F205VBT6 pinout, STM32F205VBT6 application, or STM32F205VBT6 equivalent, key selection criteria include Ethernet MAC timing compliance, dual-CAN arbitration latency, USB HS PHY integration, and DCMI interface bandwidth for vision-enabled edge nodes.
Technical Context
The STM32F205VBT6 implements a multi-bus AHB/APB architecture with separate DMA channels for Ethernet, USB OTG HS, and camera interface - enabling concurrent high-bandwidth peripheral operation without CPU intervention. Its ART Accelerator™ eliminates Flash wait states at 120 MHz, sustaining 150 DMIPS performance.
Clock system includes dual PLLs (main PLL + audio PLLI2S), independent 32 kHz RTC oscillator with calibration, and ULPI interface for external USB HS PHY. The flexible static memory controller supports NAND/NOR/PSRAM with ECC capability for industrial HMI storage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M3 @ 120 MHz, 150 DMIPS, with MPU and ART Accelerator for zero-wait-state Flash execution |
| Memory | 1 MB Flash (with 512 B OTP), 128 KB + 4 KB SRAM, plus 4 KB backup SRAM powered by VBAT |
| Connectivity | Dual CAN 2.0B controllers, 10/100 Ethernet MAC with MII/RMII and IEEE 1588v2 hardware timestamping |
| USB | Integrated USB OTG FS controller + USB OTG HS controller with dedicated DMA and on-chip full-speed PHY + ULPI support |
| Analog | Three 12-bit ADCs (up to 6 MSPS in triple interleaved mode), two 12-bit DACs, temperature sensor, and VBAT monitor |
| Timing & I/O | Up to 17 timers including two 32-bit general-purpose timers, 140 I/Os (138 5 V-tolerant), and 8–14-bit parallel DCMI interface (48 MB/s max) |
| Package | LQFP100 (14 × 14 mm), 100-pin, 0.5 mm pitch, RoHS-compliant, rated for industrial temperature range (–40°C to +85°C) |
Pinout & Package
LQFP100 package with exposed thermal pad, 0.5 mm pitch, 14 × 14 mm body size, and industrial-grade thermal resistance (θJA = 39 °C/W).
| 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 and DCMI pins) |
| PA0–PA15, PB0–PB15, etc. | General-purpose I/Os | 138 pins are 5 V-tolerant; multiple alternate functions mapped per pin (e.g., PA11/PA12 for USB FS, PB12–PB15 for Ethernet RMII) |
| PH0/PH1 | High-speed external clock input | 4–26 MHz crystal oscillator connection; required for precise USB/Ethernet timing and PLL reference |
| PC11–PC15, PD0–PD7 | DCMI interface signals | 8–14-bit parallel camera data bus (DCMI_D0–DCMI_D13), VSYNC, HSYNC, PIXCLK - supports 48 MB/s throughput |
| PA1–PA7, PB8–PB9 | Ethernet MAC physical layer | RMII interface: REF_CLK, CRS_DV, RXD0/RXD1, TX_EN, TXD0/TXD1 - enables compact 2-layer PCB layout |
| PA11/PA12, PB11/PB12 | USB transceivers | PA11/PA12: integrated USB FS PHY; PB11/PB12: ULPI interface for external USB HS PHY |
Key Features
| Feature | Design Value |
|---|---|
| ART Accelerator™ | Enables 0-wait-state execution from Flash at 120 MHz, eliminating instruction cache dependency and reducing power vs. cached alternatives |
| Dedicated Ethernet DMA | Hardware-accelerated descriptor-based packet handling with scatter-gather support, freeing CPU during bulk data transfer |
| IEEE 1588v2 Hardware Timestamping | Sub-microsecond precision timestamp insertion/removal in PTP frames at MAC layer - critical for industrial time-sensitive networking |
| Flexible Static Memory Controller (FSMC) | Supports NAND flash with built-in ECC, NOR/PSRAM with wait-state control, and LCD parallel interface (8080/6800 modes) |
| Triple Interleaved ADC Mode | 6 MSPS aggregate sampling rate across three 12-bit ADCs with synchronized triggers - suitable for motor current sensing and power quality analysis |
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-CAN buses, 100 Mbps Ethernet stack, and real-time RTOS scheduling with sub-100 µs interrupt latency. Use Value: Integrated Ethernet MAC + IEEE 1588v2 hardware timestamping ensures deterministic packet handling without external PHY timing ICs. | Use Scenario: Low-latency image capture and preprocessing in embedded vision systems for robotics guidance. IC Role / Device Role / Timing Role: DCMI interface controller feeding raw Bayer data to DMA-backed SRAM buffers, processed by Cortex-M3 using CMSIS-DSP FFT routines. Use Value: 48 MB/s parallel camera interface bandwidth and triple-interleaved ADC enable simultaneous image capture and analog sensor fusion. |
| Secure Remote I/O Module | Energy Metering Hub |
Use Scenario: Secure field device with encrypted firmware updates over TLS-enabled HTTP(S) via Ethernet. IC Role / Device Role / Timing Role: Host processor running mbed TLS, managing secure boot, AES-256 encryption, and tamper-detect GPIO monitoring. Use Value: 1 MB Flash accommodates dual-application image storage and cryptographic key partitioning with hardware RNG entropy source. | Use Scenario: DIN-rail mounted meter aggregating voltage/current/energy data from multiple CT sensors and communicating via DLMS/COSEM over Ethernet. IC Role / Device Role / Timing Role: Simultaneous sampling of three-phase analog inputs using three synchronized 12-bit ADCs with hardware trigger alignment. Use Value: Triple ADC interleaving achieves 6 MSPS aggregate rate for Class 0.2 accuracy energy calculation under IEC 62053-22. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32F207VCT6 | Adds USB HS PHY (integrated), retains identical Flash/SRAM, Ethernet, CAN, and DCMI specs | Better suited for USB HS peripheral designs requiring minimal external components | Select when USB host/device speed > 12 Mbps is mandatory and board space is constrained |
| STM32F407VGT6 | Higher CPU frequency (168 MHz), FPU, larger Flash (1 MB), but no IEEE 1588v2 hardware support and reduced CAN count (1x) | Preferred for floating-point intensive tasks (e.g., motor FOC), not for time-critical PTP synchronization | Choose for compute-heavy workloads where deterministic Ethernet timestamping is secondary |
Compared with STM32F207VCT6, the STM32F205VBT6 omits the integrated USB HS PHY but maintains identical Ethernet MAC, dual CAN, and DCMI capabilities - making it optimal for cost-sensitive industrial gateways prioritizing IEEE 1588v2 over USB HS integration. Against STM32F407VGT6, it trades FPU and clock speed for hardware PTP support and dual CAN - essential for deterministic industrial networking.
Availability
STM32F205VBT6 is available at Aetrix Electronics and suitable for industrial gateways, smart camera nodes, secure remote I/O modules, and energy metering hubs requiring stable component supply across extended product lifecycles.
Supply support for STM32F205VBT6 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 integrated Ethernet, dual CAN, USB OTG, and real-time analog acquisition - designed for deterministic edge node control without external co-processors.
FAQ
What is the maximum operating frequency and how is it achieved?
The STM32F205VBT6 achieves 120 MHz maximum CPU frequency using its internal main PLL driven by either the 4–26 MHz HSE crystal or 16 MHz HSI RC oscillator. The ART Accelerator™ eliminates Flash wait states at this speed, enabling sustained 150 DMIPS performance without external cache or SRAM acceleration.
Does the part support hardware IEEE 1588v2 timestamping?
Yes - the integrated 10/100 Ethernet MAC includes dedicated hardware timestamping logic compliant with IEEE 1588v2 Annex D. It inserts or extracts nanosecond-precision timestamps directly in PTP frames at the MAC layer, independent of software stack latency.
What are the key differences between STM32F205VBT6 and STM32F207VCT6?
The STM32F207VCT6 adds an integrated USB HS PHY (eliminating need for external ULPI PHY), while retaining identical Ethernet MAC, dual CAN, DCMI, Flash, and SRAM specifications. Both share the same LQFP100 package and industrial temperature rating.
Can the DCMI interface support MIPI CSI-2 cameras?
No - the DCMI is a parallel 8–14-bit interface supporting CMOS sensors with DVP (Digital Video Port) output only. MIPI CSI-2 requires serialized differential signaling and dedicated PHY layers not present in the STM32F205VBT6; external bridge ICs would be needed for MIPI compatibility.
STM32F205VBT6 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 100-LQFP
- Series:
- STM32F2
- Packaging:
- Tray
- 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:
- 82
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 68K 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:
STM32F205VBT6 FAQ
1.How can I place an order for STM32F205VBT6 through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32F205VBT6 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 STM32F205VBT6 reliable?
The price and inventory of STM32F205VBT6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32F205VBT6 is usually 5 days.
3.What payment methods are accepted for STM32F205VBT6?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32F205VBT6 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32F205VBT6?
STM32F205VBT6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32F205VBT6 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 STM32F205VBT6?
For technical support, including STM32F205VBT6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32F205VBT6 requirements.
6.How does Aetrix verify that STM32F205VBT6 is sourced from the original manufacturer or authorized distributors?
All STM32F205VBT6 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 STM32F205VBT6 meets industry standards.
7.What is the process for return or replacement of STM32F205VBT6?
All STM32F205VBT6 units undergo pre-shipment inspection (PSI). If there is an issue with STM32F205VBT6, 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 STM32F205VBT6 part is unused and in its original packaging.
Return procedure for STM32F205VBT6:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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