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STM32F3 Series

STM32 F3 series of mixed-signal MCUs with DSP and FPU instructions

The STM32 F3 series combines a 32-bit ARM Cortex-M4 core (DSP, FPU) running at 72 MHz with a high number of integrated analog peripherals leading to cost reduction at application level and simplifying application design, including:

  • Ultra-fast comparators (<30 ns)
  • Op-amp with programmable gain (PGA)
  • 12-bit DACs
  • Ultra-fast 12-bit ADCs with 5 MSPS per channel (up to 18 MSPS in interleaved mode)
  • Precise 16-bit sigma-delta ADCs (21 channels)
  • CCM (Core Coupled Memory), a specific memory architecture for RAM execution of time-critical routines, accelerating the performance by 43%
  • 144 MHz Advanced 16- bit PWM timer (resolution < 7 ns) for control application
  • High resolution timer (217ps), self-compensated vs power supply and temperature drift

A flexible interconnect matrix allows autonomous communication between peripherals and saves CPU resources and power consumption.

A high degree of compatibility with STM32 F0 series guarantees outstanding efficiency when designing derivatives of applications at different performance levels. 

The STM32 F3 series consists of:

  • The STM32F301, STM32F302, STM32F303 general purpose product lines ranging from a basic, cost efficient peripheral set, up to more performance and analog functions able to manage up to triple FOC motor control,
  • The STM32F334  with high-resolution timer (217ps) for  digital power conversion, such as D-SMPS, lighting, welding, solar and wireless charging,
  • The STM32F373, with 16 bit sigma-delta ADC for high precision measurements in applications such as biometric sensors or smart metering,
  • The STM32F3x8 line, supporting 1.8V operation

Package options are LQPF48/64/100, UFBGA100, WLCSP66/49, UQFN32 for the devices ranging now from to 32 up to 
256 Kbytes of Flash.
Versions with 384 and 512 Kbytes Flash and 144 pins will be available in Q3/2014.

Highly efficient digital power conversion with new STM32F3 MCU

The STM32F334 is specifically developed to drive efficient digital power conversion applications.

Additional features:

  • Temperature- and voltage-compensated hi-res timer with 217ps PWM resolution
  • 12-bit ADCs with 5 MSPS
  • Ultrafast comparators with 26ns reaction time for increased safety

A high-resolution timer cookbook and a dedicated D-SMPS evaluation board (STEVAL-ISA147V2) help accelerate application development.

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