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STM32F373R8：Mainstream Mixed signals MCUs ARM Cortex-M4 core with DSP and FPU, 64 Kbytes Flash, 72 MHz CPU, MPU, 16-bit ADC, comparators

The STM32F373xx family is based on the high-performance ARM® Cortex®-M4 32-bit RISC core operating at a frequency of up to 72 MHz, and embedding a floating point unit (FPU), a memory protection unit (MPU) and an Embedded Trace Macrocell™ (ETM). The family incorporates high-speed embedded memories (up to 256 Kbyte of Flash memory, up to 32 Kbytes of SRAM), and an extensive range of enhanced I/Os and peripherals connected to two APB buses.

The STM32F373xx devices offer one fast 12-bit ADC (1 Msps), three 16-bit Sigma delta ADCs, two comparators, two DACs (DAC1 with 2 channels and DAC2 with 1 channel), a low-power RTC, 9 general-purpose 16-bit timers, two general-purpose 32-bit timers, three basic timers.

They also feature standard and advanced communication interfaces: two I2Cs, three SPIs, all with muxed I2Ss, three USARTs, CAN and USB.

The STM32F373xx family operates in the -40 to +85 °C and -40 to +105 °C temperature ranges from a 2.0 to 3.6 V power supply. A comprehensive set of power-saving mode allows the design of low-power applications.

The STM32F373xx family offers devices in five packages ranging from 48 pins to 100 pins. The set of included peripherals changes with the device chosen.

Key Features

• Core: ARM® 32-bit Cortex® -M4 CPU (72 MHz max), single-cycle multiplication and HW division, DSP instruction with FPU (floating-point unit) and MPU (memory protection unit)
• 1.25 DMIPS/MHz (Dhrystone 2.1)
• Memories
  • 64 to 256 Kbytes of Flash memory
  • 32 Kbytes of SRAM with HW parity check
• CRC calculation unit
• Reset and power management
  • Voltage range: 2.0 to 3.6 V
  • Power-on/Power down reset (POR/PDR)
  • Programmable voltage detector (PVD)
  • Low power modes: Sleep, Stop, Standby
  • VBAT supply for RTC and backup registers
• Clock management
  • 4 to 32 MHz crystal oscillator
  • 32 kHz oscillator for RTC with calibration
  • Internal 8 MHz RC with x16 PLL option
  • Internal 40 kHz oscillator
• Up to 84 fast I/Os
  • All mappable on external interrupt vectors
  • Up to 45 I/Os with 5 V tolerant capability
• 12-channel DMA controller
• One 12-bit, 1.0 μs ADC (up to 16 channels)
  • Conversion range: 0 to 3.6 V
  • Separate analog supply from 2.4 up to 3.6
• Three 16-bit Sigma Delta ADC
  • Separate analog supply from 2.2 to 3.6 V, up to 21 single/ 11 diff channels
• Three 12-bit DAC channels
• Two fast rail-to-rail analog comparators with programmable input and output
• Up to 24 capacitive sensing channels
• 17 timers
  • Two 32-bit timers and three 16-bit timers with up to 4 IC/OC/PWM or pulse counters
  • Two 16-bit timers with up to 2 IC/OC/PWM or pulse counters
  • Four 16-bit timers with up to 1 IC/OC/PWM or pulse counter
  • Independent and system watchdog timers
  • SysTick timer: 24-bit down counter
  • Three 16-bit basic timers to drive the DAC
• Calendar RTC with Alarm and periodic wakeup from Stop/Standby
• Communication interfaces
  • CAN interface (2.0B Active)
  • Two I2 Cs supporting Fast Mode Plus (1 Mbit/s) with 20 mA current sink, SMBus/PMBus, wakeup from STOP
  • Three USARTs supporting synchronous mode, modem control, ISO/IEC 7816, LIN, IrDA, auto baud rate, wakeup feature
  • Three SPIs (18 Mbit/s) with 4 to 16 programmable bit frames, muxed I2S
  • HDMI-CEC bus interface
  • USB 2.0 full speed interface
• Serial wire devices, JTAG, Cortex® -M4 ETM
• 96-bit unique ID

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