Description

The STM32F302xx/STM32F303xx family is based on the high-performance ARM® Cortex™-M4F 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 Kbytes of Flash memory, up to 48 Kbytes of SRAM) and an extensive range of enhanced I/Os and peripherals connected to two APB buses.

Features

■ Core: ARM® 32-bit Cortex™-M4F CPU (72 MHz max), single-cycle multiplication and HW division, DSP instruction with FPU (floating-point unit) and MPU (memory protection unit).

■ Operating conditions:

– VDD, VDDA voltage range: 2.0 V to 3.6 V

■ Memories

– 128 to 256 Kbytes of Flash memory

– Up to 40 Kbytes of SRAM on data bus with HW parity check

– 8 Kbytes of SRAM on instruction bus with HW parity check (CCM)

■ CRC calculation unit

■ Reset and supply management

– Power-on/Power down reset (POR/PDR)

– Programmable voltage detector (PVD)

– Low power modes: Sleep, Stop and 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 x 16 PLL option

– Internal 40 kHz oscillator

■ Up to 87 fast I/Os

– All mappable on external interrupt vectors

– Several 5 V-tolerant

■ 12-channel DMA controller

■ Up to four ADC 0.20 µS (up to 39 channels) with selectable resolution of 12/10/8/6 bits, 0 to 3.6 V conversion range, separate analog supply from 2 to 3.6 V

■ Up to two 12-bit DAC channels with analog supply from 2.4 to 3.6 V

■ Seven fast rail-to-rail analog comparators with analog supply from 2 to 3.6 V

■ Up to four operational amplifiers that can be used in PGA mode, all terminal accessible with analog supply from 2.4 to 3.6 V

■ Up to 24 capacitive sensing channels supporting touchkey, linear and rotary touch sensors

■ Up to 13 timers

– One 32-bit timer and two 16-bit timers with up to 4 IC/OC/PWM or pulse counter and quadrature (incremental) encoder input

– Up to two 16-bit 6-channel advanced-control timers, with up to 6 PWM channels, deadtime generation and emergency stop

– One 16-bit timer with 2 IC/OCs, 1 OCN/PWM, deadtime generation and emergency stop

– Two 16-bit timers with IC/OC/OCN/PWM, deadtime generation and emergency stop

– Two watchdog timers (independent, window)

– SysTick timer: 24-bit downcounter

– Up to two 16-bit basic timers to drive the DAC

■ Calendar RTC with Alarm, periodic wakeup from Stop/Standby

■ Communication interfaces

– CAN interface (2.0B Active)

– Two I2C Fast mode plus (1 Mbit/s) with 20 mA current sink, SMBus/PMBus, wakeup from STOP – Up to five USART/UARTs (ISO 7816 interface, LIN, IrDA, modem control)

– Up to three SPIs, two with multiplexed I2S interface, 4 to 16 programmable bit frame

– USB 2.0 full speed interface

– Infrared Transmitter

■ Serial wire debug, JTAG, Cortex-M4F ETM

■ 96-bit unique ID