Description

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.

Features

• Core: ARM® 32-bit Cortex®-M4 CPU (72 MHz max), single-cycle multiplication and HW division, DSP instruction with FPU (floatingpoint 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 I2Cs 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