STM32 F4

The STM32 F4-series is the first group of STM32 microcontrollers based on the ARM Cortex-M4F core. The F4-series is also the first STM32 series to have DSP and floating point instructions. The F4 is pin-to-pin compatible with the STM32 F2-series and adds higher clock speed, 64K CCM static RAM, full duplex I虏S, improved real-time clock, and faster ADCs. The summary for this series is:^{[17][24][25][35][36]}

• Core:
  • ARM Cortex-M4F core at a maximum clock rate of 84 / 168 / 180聽MHz.
• Memory:
  • Static RAM consists of up to 192聽KB general purpose, 64聽KB core coupled memory (CCM), 4聽KB battery-backed, 80聽bytes battery-backed with tamper-detection erase.
  • Flash consists of 512 / 1024 / 2048聽KB general purpose, 30聽KB system boot, 512聽bytes one-time programmable (OTP), 16 option bytes.
  • Each chip has a factory-programmed 96-bit unique device identifier number.
• Peripherals:
  • Common peripherals included in all IC packages are USB 2.0 OTG HS and FS, two CAN 2.0B, one SPI + two SPI or full-duplex I虏S, three I虏C, four USART, two UART, SDIO for SD/MMC cards, twelve 16-bit timers, two 32-bit timers, two watchdog timers, temperature sensor, 16 or 24 channels into three ADCs, two DACs, 51 to 140 GPIOs, sixteen DMA, improved real-time clock (RTC), cyclic redundancy check (CRC) engine, random number generator (RNG) engine. Larger IC packages add 8/16-bit external memory bus capabilities.
  • The STM32F4x7 models add ethernet MAC and camera interface.
  • The STM32F41x/43x models add a cryptographic processor for DES / TDES / AES, and a hash processor for SHA-1 and MD5.
  • The STM32F4x9 models add a LCD-TFT controller.
• Oscillators consists of internal (16聽MHz, 32聽kHz), optional external (4 to 26聽MHz, 32.768 to 1000聽kHz).
• IC packages: WLCSP64, LQFP64, LQFP100, LQFP144, LQFP176, UFBGA176. STM32F429/439 also offers LQFP208 and UFBGA216.
• Operating voltage range is 1.8 to 3.6聽volt.