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High-performance ARM Cortex-M3 MCU with 256 Kbytes Flash, 120 MHz CPU, ART Accelerator
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The STM32F20x family is based on the high-performance ARM®Cortex™-M3 32-bit RISC core operating at a frequency of up to 120 MHz. The family incorporates high-speed embedded memories (Flash memory up to 1 Mbyte, up to 128 Kbytes of system SRAM), up to 4 Kbytes of backup SRAM, and an extensive range of enhanced I/Os and peripherals connected to two APB buses, three AHB buses and a 32-bit multi-AHB bus matrix.

The devices also feature an adaptive real-time memory accelerator (ART Accelerator™) which allows to achieve a performance equivalent to 0 wait state program execution from Flash memory at a CPU frequency up to 120 MHz. This performance has been validated using the CoreMark benchmark.

All devices offer three 12-bit ADCs, two DACs, a low-power RTC, twelve general-purpose 16-bit timers including two PWM timers for motor control, two general-purpose 32-bit timers. a true number random generator (RNG). They also feature standard and advanced communication interfaces. New advanced peripherals include an SDIO, an enhanced flexible static memory control (FSMC) interface (for devices offered in packages of 100 pins and more), and a camera interface for CMOS sensors. The devices also feature standard peripherals.

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Key Features

  • Core: ARM 32-bit Cortex™-M3 CPU (120 MHz max) with Adaptive real-time accelerator (ART Accelerator™ allowing 0-wait state execution performance from Flash memory, MPU, 150 DMIPS/1.25 DMIPS/MHz (Dhrystone 2.1)
  • Memories
  • Up to 1 Mbyte of Flash memory
  • 512 bytes of OTP memory
  • Up to 128 + 4 Kbytes of SRAM
  • Flexible static memory controller that supports Compact Flash, SRAM, PSRAM, NOR and NAND memories
  • LCD parallel interface, 8080/6800 modes
  • Clock, reset and supply management
  • From 1.8 to 3.6 V application supply+I/Os
  • POR, PDR, PVD and BOR
  • 4 to 26 MHz crystal oscillator
  • Internal 16 MHz factory-trimmed RC
  • 32 kHz oscillator for RTC with calibration
  • Internal 32 kHz RC with calibration
  • Low power
  • Sleep, Stop and Standby modes
  • VBATsupply for RTC, 20 × 32 bit backup registers, and optional 4 KB backup SRAM
  • 3 × 12-bit, 0.5 μs ADCs with up to 24 channels and up to 6 MSPS in triple interleaved mode
  • 2 × 12-bit D/A converters
  • General-purpose DMA: 16-stream controller with centralized FIFOs and burst support
  • Up to 17 timers
  • Up to twelve 16-bit and two 32-bit timers, up to 120 MHz, each with up to 4 IC/OC/PWM or pulse counter and quadrature (incremental) encoder input
  • Debug mode: Serial wire debug (SWD), JTAG, and Cortex-M3 Embedded Trace Macrocell™
  • Up to 140 I/O ports with interrupt capability:
  • Up to 136 fast I/Os up to 60 MHz
  • Up to 138 5 V-tolerant I/Os
  • Up to 15 communication interfaces
  • Up to 3 × I2C interfaces (SMBus/PMBus)
  • Up to 4 USARTs and 2 UARTs (7.5 Mbit/s, ISO 7816 interface, LIN, IrDA, modem ctrl)
  • Up to 3 SPIs (30 Mbit/s), 2 with muxed I2S to achieve audio class accuracy via audio PLL or external PLL
  • 2 × CAN interfaces (2.0B Active)
  • SDIO interface
  • Advanced connectivity
  • USB 2.0 full-speed device/host/OTG controller with on-chip PHY
  • USB 2.0 high-speed/full-speed device/host/OTG controller with dedicated DMA, on-chip full-speed PHY and ULPI
  • 10/100 Ethernet MAC with dedicated DMA: supports IEEE 1588v2 hardware, MII/RMII
  • 8- to 14-bit parallel camera interface (48 Mbyte/s max.)
  • CRC calculation unit
  • 96-bit unique ID

Design Resources


Technical Documentation

Product Specifications

Description Version Size
DS6329: ARM-based 32-bit MCU, 150DMIPs, up to 1 MB Flash/128+4KB RAM, USB OTG HS/FS, Ethernet, 17 TIMs, 3 ADCs, 15 comm. interfaces & camera
12.0 2,582 KB

Application Notes

Description Version Size
AN1709: EMC design guide for ST microcontrollers
1.7 657 KB
AN2606: STM32 microcontroller system memory boot mode
23.0 2,768 KB
AN2834: How to get the best ADC accuracy in STM32Fx Series and STM32L1 Series devices
2.0 846 KB
AN2867: Oscillator design guide for STM8S, STM8A and STM32 microcontrollers
10.0 2,877 KB
AN2945: STM8S and STM32™ MCUs: a consistent 8/32-bit product line for painless migration
1.2 213 KB
AN3070: Managing the Driver Enable signal for RS-485 and IO-Link communications with the STM32™’s USART
1.2 191 KB
AN3126: Audio and waveform generation using the DAC in STM32 microcontrollers
2.0 830 KB
AN3154: CAN protocol used in the STM32 bootloader
5.0 632 KB
AN3155: USART protocol used in the STM32 bootloader
6.0 1,157 KB
AN3156: USB DFU protocol used in the STM32 bootloader
4.0 395 KB
AN3307: Guidelines for obtaining IEC 60335 Class B certification for any STM32 application
4.0 431 KB
AN3320: Getting started with STM32F20xxx/21xxx MCU hardware development
2.2 377 KB
AN3364: Migration and compatibility guidelines for STM32 microcontroller applications
3.0 128 KB
AN3371: Using the hardware real-time clock (RTC) in STM32 F0, F2, F3, F4 and L1 series of MCUs
5.0 422 KB
AN3427: Migrating a microcontroller application from STM32F1 to STM32F2 series
1.1 376 KB
AN3429: STM32 proprietary code protection overview
1.1 60 KB
AN3998: PDM audio software decoding on STM32 microcontrollers
1.2 91 KB
AN4013: STM32F0, STM32F1, STM32F2, STM32F4, STM32L1 series, STM32F30x, STM32F3x8, STM32F373 timer overview
4.0 514 KB
AN4031: Using the STM32F2 and STM32F4 DMA controller
2.0 1,423 KB
AN4073: How to improve ADC accuracy when using STM32F2xx and STM32F4xx microcontrollers
5.0 522 KB
AN4076: Two or three shunt resistor based current sensing circuit design in 3-phase inverters
1.6 1,198 KB
AN4229: How to implement a vocoder solution using STM32 microcontrollers
1.0 467 KB
AN4230: STM32F2xx, STM32F4xx random number generation validation using NIST statistical test suite
1.1 700 KB
AN4566: Extending the DAC performance of STM32 microcontrollers
2.0 365 KB
AN4655: Virtually increasing the number of serial communication peripherals in STM32 applications
1.1 339 KB
AN4733: STM32Cube firmware examples for STM32F2 Series
1.0 254 KB

Technical Notes & Articles

Description Version Size
TN0516: Overview of the STM32F0x/F100xx/F103xx and STM32F2xx/F30x/F4xx MCUs PMSM single/dual FOC SDK V4.0
4.0 286 KB
TN0830: How to use EWARM 6.2x with projects built with EWARM 6.1 and previous versions
1.1 97 KB
TN1204: Tape and reel shipping media for STM32 microcontrollers in BGA packages
2.1 746 KB
TN1205: Tape and reel shipping media for STM8 and STM32 microcontrollers in FPN packages
3.0 753 KB
TN1206: Tape and reel shipping media for STM8 and STM32 microcontrollers in QFP packages
3.0 831 KB
TN1207: Tape and reel shipping media for STM8 and STM32 microcontrollers in SO packages
1.0 755 KB
TN1208: Tape and reel shipping media for STM8 and STM32 microcontrollers in TSSOP and SSOP packages
1.0 743 KB

User Manual

Description Version Size
UM1653: STM32 Advanced NAND Flash Driver for SLC NAND
1.1 1,423 KB

Reference Manual

Description Version Size
RM0033: STM32F205xx, STM32F207xx, STM32F215xx and STM32F217xx advanced ARM-based 32-bit MCUs
7.0 17,747 KB

Programming Manual

Description Version Size
PM0056: STM32F10xxx/20xxx/21xxx/L1xxxx Cortex-M3 programming manual
5.0 4,101 KB
PM0059: STM32F205/215, STM32F207/217 Flash programming manual
5.0 376 KB

Errata Sheet

Description Version Size
ES0005: STM32F205/207xx and STM32F215/217xx device limitations
7.0 479 KB

HW Model & CAD Libraries

HW Model & CAD Libraries

Description Version Size
STM32 Boundary Scan Description Language (BSDL) files
3.0.0 195 KB
STM32 F2 series IBIS models
1.0 11,468 KB

Presentations & Training Material


Description Version Size
STM32 Embedded Software overview
1.0.0 571 KB
STM32 and STM8 embedded software solutions
2.0 2,415 KB

Related Tools and Software

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MULTI GreenHills integrated development and debug environment for embedded applications using C and C++
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WITT-RTOS Wittenstein OpenRTOS, commercial flavor of open source FreeRTOS
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VisualTFT A standalone application used for rapid development of graphical user interfaces for TFT displays. Software generates code for STM32 MCUs. Code is fully compatible with mikroElektronika compilers mikroC, mikroBasic and mikroPascal
STSW-STM32028 STM32's ADC modes and their applications (AN3116)
STSW-STM32025 Managing the Driver Enable signal for RS-485 and IO-Link communications with the STM32 USART
STSW-STM32047 Implementing receivers for infrared remote control protocols using STM32F1 microcontrollers (AN3174)
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CrossWorks Rowley Associates CrossWorks, integrated development environment with JTAG Flash download and debug
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Publications and Collaterals


Description Version Size
STM32 Nucleo boards
FLSTM32NUCLEO0115 2,720 KB


Description Version Size
STM32 32-bit MCU family - Leading supplier of ARM® Cortex®-M microcontrollers
15.02 1,025 KB
STM32 F2 series - High-performance Cortex-M3 MCUs
1.0 702 KB

White Paper

Description Version Size
STM32 More Than a Core - Circuit Cellar, Tom Cantrell
1.0 355 KB

Quality & Reliability

Product Certification

Description Version Size
STM32 CAN conformance test authentication sheet
183 KB

Sample & Buy

Part Number Marketing StatusPackagePacking TypeOperating Temperature (min) Operating Temperature (max) Order From STUnit Price (US$)*
@ 10000
Distributor AvailabilityRoHS Compliance GradeDownload
Material Declaration**
STM32F205VCT6ActiveLQFP 100 14x14x1.4Tray-4085-4.197Distributor reported inventory date: 2015-10-09
Distributor NameRegionStockMin. order
Newark Element14Order NowAMERICA80
Farnell Element14Order NowEUROPE61
STM32F205VCT6TRActiveLQFP 100 14x14x1.4Tape And Reel-4085-4.197No availability reported, please contact our Sales officeEcopack2PDF
STM32F205VCT7ActiveLQFP 100 14x14x1.4Tray-40105-4.491Distributor reported inventory date: 2015-10-09
Distributor NameRegionStockMin. order
Farnell Element14Order NowEUROPE3891
STM32F205VCT7TRActiveLQFP 100 14x14x1.4Tape And Reel-40105-4.491Distributor reported inventory date: 2015-10-09
Distributor NameRegionStockMin. order

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors
(**) The Material Declaration forms available on may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.
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