STM32F205VCT6TR - 120MHz Cortex-M3 MCU 256KB LQFP-100 | STMicroelectronics
MPN: STM32F205VCT6TR ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $12.85 | $12.85 |
| 10 | $11.55 | $115.50 |
| 100 | $10.2 | $1,020.00 |
| 500 | $9.05 | $4,525.00 |
| 1,000 | $7.95 | $7,950.00 |
STM32F205VCT6TR Overview
An ARM Cortex-M3 microcontroller is a 32-bit RISC processor core built around the Thumb-2 instruction set and tightly integrated with NVIC (Nested Vectored Interrupt Controller), SysTick, and optionally MPU and ETM blocks. In the broader taxonomy, the Cortex-M3 sits under Cortex-M -> ARM -> 32-bit MCU -> microcontroller, and the STM32F2 specifically targets high-performance connectivity applications. The Cortex-M3 brings deterministic interrupt latency, hardware divide, single-cycle multiply, and atomic bit-band regions, all of which translate into predictable code execution and tight real-time behavior.
Key features include 256 KB of Flash program memory, 96 KB of SRAM, three 12-bit ADCs with up to 24 channels, two 12-bit DACs, up to 17 timers (including motor-control PWM and general-purpose 16/32-bit timers), three I2C, four USART, two UART, three SPI, plus USB OTG Full-Speed and High-Speed with on-chip PHY, CAN 2.0B, SDIO, and 10/100 Ethernet MAC with dedicated DMA. The part operates from a 1.8 V to 3.6 V supply and provides multiple low-power modes (Sleep, Stop, Standby) with battery-domain RTC.
Architecturally, the STM32F205 integrates the ART Accelerator, a 7-channel general-purpose DMA, a CRC engine, and a 96-bit unique device ID. The combination of hardware encryption support (AES, RNG, USB OTG, and external FSMC/SDIO access) makes it well suited for industrial gateways, smart-meter and building-automation controllers that require Ethernet and USB at the same time.
Typical applications for the STM32F205VCT6TR include industrial motor drives and variable-frequency drives (VFD), barcode scanners and printers, home appliances with TFT/LCD HMIs, USB-connected medical instrumentation, alarm panels with Ethernet backhaul, and protocol converters bridging CAN, USB and Ethernet. The LQFP-100 footprint also makes it a strong fit for hand-soldered prototypes and medium-volume industrial designs.
When designing with this part, fit decoupling per VDD/VBAT/VDDA pin, place a 32.768 kHz crystal on PC14/PC15 if RTC accuracy is needed, and route the HSE oscillator traces short. Always verify USB OTG HS PHY biasing (external resistor on DP pull) when the high-speed USB port is used.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not typically compiled inside the manufacturer datasheet PDF.
Drop-in alternatives for STM32F205VCT6TR — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with STM32F205VCT6TR (same form factor and footprint) — differing in Package, Timers, Communication Interfaces, SRAM, Operating Temperature.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
STM32F205VCT6
✅ Drop-In📋 Reference alternative (not in catalog)
STM32F205VCT7
✅ Drop-In📋 Reference alternative (not in catalog)
STM32F205RCT6
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$4.15 / Unit
View Datasheet →STM32F205ZCT6
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
STM32F105VCT7
✅ Drop-In✓ In Stock
$7.65 / Unit
View Datasheet →STM32F205RET6
✅ Drop-In✓ In Stock
$7.95 / Unit
View Datasheet →STM32F205VCT6TR Maximum Ratings & Electrical Characteristics
| Core | ARM Cortex-M3 32-bit |
| Maximum CPU Frequency | 120 MHz |
| DMIPS | 150 |
| Flash Memory | 256 KB |
| SRAM | 96 KB |
| Supply Voltage | 1.8 V to 3.6 V |
| Operating Temperature | -40 C to +85 C |
| Package | LQFP-100 (14 x 14 mm) |
| Mounting Type | Surface Mount |
| Number of I/Os | 82 |
| ADC | 3 x 12-bit (24 channels) |
| DAC | 2 x 12-bit |
| Timers | 17 (including 1 systick, 12 16-bit, 2 32-bit, 2 watchdog) |
| Communication Interfaces | USB OTG FS/HS, 2x CAN 2.0B, 3x SPI, 3x I2C, 4x USART + 2x UART, SDIO, Ethernet MAC |
| DMA Channels | 16 |
| Operating Temperature Grade | Industrial (-40C to +85C, grade 6) |
| RoHS Status | Compliant |
| MSL Level | 3 (168 hours) |
| Packing | Tape and Reel (TR suffix) |
| Product Family | STM32F2 Series |
STM32F205VCT6TR lqfp-100 (14 x 14 mm) Pin Configuration Guide
Pin configuration for STM32F205VCT6TR (lqfp-100 (14 x 14 mm) package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for STM32F205VCT6TR.
Refer to the datasheet for full pin configuration.
Typical Applications
STM32F205VCT6TR is suitable for 6 applications: Industrial Motor Control & VFD, Industrial Ethernet Gateway, USB-Connected Barcode Scanner / Printer, Building Automation & Smart Meter, Medical Point-of-Care Device, Home Appliance with TFT / LCD HMI.
Industrial Motor Control & VFD
The STM32F205VCT6TR's 120 MHz Cortex-M3 with ART Accelerator, two 12-bit ADCs sampled simultaneously via timer-trigger, and motor-control PWM outputs make it fit three-phase motor drives and variable-frequency drives (VFDs). The 17 timers include advanced PWM blocks capable of complementary outputs and dead-time insertion, supporting 6-step and FOC commutation directly. The 96 KB SRAM buffers closed-loop FOC observer math while Ethernet MAC handles Modbus TCP / EtherNet/IP backhaul, all on one chip.
Recommended
Industrial Ethernet Gateway
The STM32F205VCT6TR integrates a 10/100 Ethernet MAC with dedicated DMA, plus USB OTG High-Speed with on-chip PHY for cost-effective gateways bridging USB and IP networks. With 96 KB SRAM, mTCP/LwIP or uIP stacks co-reside with HTTP/Modbus servers, and the 16-channel DMA offloads packet copies. ST's RMII reference design (AN3368) drives PHY selection at industrial temp grades; the part's 1.8 V to 3.6 V input pairs cleanly with 24 V-to-3.3V industrial rails.
Recommended
USB-Connected Barcode Scanner / Printer
In handheld scanners and POS printers, the STM32F205VCT6TR's USB OTG HS with on-chip PHY removes external ULPI components, simplifying the BOM and reducing the layout footprint. The 120 MHz core decodes image-processing pipelines in real time, while the SDIO interface handles SD card data logging without CPU stalls. The 256 KB Flash accommodates USB class stacks (CDC, HID, vendor) plus on-screen GUI rendering for embedded displays.
Recommended
Building Automation & Smart Meter
With two CAN 2.0B controllers, an Ethernet MAC, and an RTC with battery-domain backup, the STM32F205VCT6TR is suitable for BACnet/Modbus building controllers and smart electricity meters. The LSE oscillator (32.768 kHz) and Stop-mode current draw support battery-backed metering nodes, while the 96 KB SRAM buffers DLMS/COSEM protocol stacks. AES hardware acceleration (on the F2 family) accelerates secure tariff communication when paired with optional crypto libraries.
Recommended
Medical Point-of-Care Device
The STM32F205VCT6TR's 12-bit ADC with up to 24 channels, 82 flexible I/Os for sensor multiplexing, and USB OTG FS/HS for bedside connectivity fit blood-glucose meters, infusion pumps, and portable patient monitors. The LQFP-100 footprint supports hand-repairable PCBs in low-volume medical devices. ST provides IEC 60730 software libraries for IEC 61010-1 functional-safety housekeeping, leveraging the hardware watchdog and CRC engine.
Recommended
Home Appliance with TFT / LCD HMI
White-goods controllers with color HMI benefit from the STM32F205VCT6TR's FSMC interface for parallel TFT/LCD memory mapping, plus timers for motor/relay control and ADCs for sensor readout. The DMA offloads display refresh at low CPU cost, freeing Cortex-M3 headroom for user-interface logic. UL/CSA/FCC-grade EMI performance is documented for industrial and appliance deployments referencing ST's AN2867 EMC guidelines.
Recommended
Recommended Products Summary
Engineering reference data for STM32F205VCT6TR — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | STM32F205VCT6 | STM32F205VCT7 | STM32F105VCT7 | STM32F205RET6 | STM32F205RCT6 | STM32F205ZCT6 |
|---|---|---|---|---|---|---|---|
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Package | LQFP-100 | LQFP-100 - same | LQFP-100 - same | LQFP-100 - same | LQFP-64 - footprint change required | LQFP-64 - footprint change required | LQFP-144 - footprint change required |
| Core / Max Frequency | Cortex-M3 / 120 MHz | Cortex-M3 / 120 MHz | Cortex-M3 / 120 MHz | Cortex-M3 / 72 MHz | Cortex-M3 / 120 MHz | Cortex-M3 / 120 MHz | Cortex-M3 / 120 MHz |
| Flash / SRAM | 256 KB / 96 KB | 256 KB / 96 KB | 256 KB / 96 KB | 256 KB / 96 KB | 256 KB / 96 KB | 256 KB / 96 KB | 256 KB / 96 KB |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +105C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
| USB OTG Support | FS + HS (with on-chip PHY) | FS + HS (with on-chip PHY) | FS + HS (with on-chip PHY) | FS only (with on-chip PHY) | FS only (with on-chip PHY) | FS only (with on-chip PHY) | FS + HS (with on-chip PHY) |
| Ethernet MAC | Yes (10/100 with dedicated DMA) | Yes | Yes | No | Yes | Yes | Yes |
| I/O Count | 82 | 82 | 82 | 82 | 51 | 51 | 114 |
| Lifecycle Status | Active | Active | Active | Active | Active | Active | Active |
Key Differentiators
- Same-package automotive-grade upgrade path available as STM32F205VCT7 (vs STM32F205VCT6)
- Full USB OTG HS with on-chip PHY at LQFP-100 (vs STM32F105VCT7)
- On-chip 10/100 Ethernet MAC with dedicated DMA (vs STM32F105VCT7)
Design Notes
Place a 100 nF X7R ceramic on each VDD pin and a single 4.7 uF bulk near the regulator output, plus 100 nF plus 1 uF on VDDA. Tie VREF+ to VDDA via a low-pass RC (10 ohm + 100 nF) for ADC accuracy per ST AN2834. Battery-domain VBAT requires its own decoupling and a Schottky to VDD when no battery is present, to ensure proper RTC domain failover.
Keep the HSE crystal traces within 5 mm of the OSC_IN/OSC_OUT pads and shield with a ground pour to avoid 50/60 Hz hum injection on USB or Ethernet. Route the USB DP/DM pair as a 90 ohm differential, length-matched within 1 mm, and avoid any via or component stub within 2x the trace spacing - USB HS signaling demands a clean, multi-layer-controlled-impedance stackup.
Estimated: with all I/Os switching at 8 mA and the 120 MHz CPU at full Dhrystone load, the LQFP-100 part dissipates approximately 200 mW worst case, and the package's theta_JA of ~50 C/W (on a 2s2p test board) yields a 10 C rise above ambient. Industrial-grade -40C to +85C operation has 5x headroom, so no heatsink is required for indoor enclosures.
Always keep NRST low during power-up; an external 10 kohm pull-up and 100 nF cap provides the canonical 20 ms reset timing. Do not enable USB OTG HS without supplying the internal 1.2 V PHY bias - the VBUS detection pin is required for proper session. The boot pins BOOT0/BOOT1 must be sampled correctly; floating BOOT0 will hang the boot ROM and prevent Flash execution.
Compliance Information
STMicroelectronics product material declarations list the STM32F205 family as RoHS and REACH compliant, lead-free, and conflict-minerals compliant. Not AEC-Q100 qualified - choose the automotive STM32F205VCT7/T6 variant for harsh-environment applications.
