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STMicroelectronics STM32F205RET6

STMicroelectronics 32 Bit Microcontroller

The STM32F205RET6 is a 32-bit ARM-based Microcontroller Unit features an adaptive real-time memory accelerator.

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 Clock, reset and supply management
  • 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
  • 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 modes

  • Sleep, Stop and Standby modes
  • VBAT supply 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 15 communication interfaces
  • Up to 136 fast I/Os up to 60 MHz
  • Up to 138 5 V-tolerant I/Os
  • Up to 3 × I2 C 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 I2 S 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


32 BIT Microcontroller, STM32F205RET6

The STM32F205RET6 is a 32-bit ARM-based Microcontroller Unit features an adaptive real-time memory accelerator