ARM®Cortex®-M4 microcontroller, 32-bit, 2V, 256 KB, LQFP-100

The STM32F303xB/STM32F303xC family is based on the powerful 32-bit RISC core Arm® Cortex®-M4 with FPU at a frequency of up to 72 MHz, the embedding of an MPU and a track macro cell (ETM). The family includes high-speed embedded memory up to 256 KB of flash memory, up to 40 KB of SRAM) + an extensive range of advanced I/Os + peripherals connected to two APB buses.
Up to 4 fast 12-bit ADCs (5 Msps), 7 comparators, 4 operational amplifiers, 4 DAC channels, 1 low-power RTC, 5 universal 16-bit timers, 1 universal 32-bit timer and 2 timers for the motor controller.
Up to 2 I2Cs, 3 SPIs (2 SPIs are with multiplexed full duplex I2Ss), 3 USARTs, 2 UARTs, CAN + USB. To achieve the accuracy of the audio class, I2S peripherals can be clocked via an external PLL.
Temperature range from -40 - +85°C with a power supply from 2.0 to 3.6 V. A comprehensive set of energy-saving modes enables the development of low-power applications.
Housing with 48 pins to 100 pins.
The set of peripherals included changes with the device selected.

Features

• Core: Arm® Cortex®-M4 32-bit CPU with FPU (72 MHz max.), single-cycle multiplication and HW division, 90 DMIPS (from CCM), DSP instruction and MPU (memory protection unit)

• Operating conditions:
– VDD, VDDA voltage range: 2.0 V to 3.6 V

• Memories
– 128 to 256 KB flash memory
– Up to 40 KB SRAM, with hardware parity check implemented on the first 16 KB.
– Routine booster: 8 KB SRAM on instruction and data bus, with hardware 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

• Interconnect matrix

• 12-channel DMA controller

• Four ADCs 0.20 ìS (up to 39 channels) with selectable resolution of 12/10/8/6 bits, 0 to 3.6 V conversion range, single ended/differential input, separate analogue supply from 2 to 3.6 V

• Two 12-bit DAC channel with analogue supply from 2.4 to 3.6 V

• Seven fast rail-to-rail analogue comparators with analogue supply from 2 to 3.6 V

• Four operational amplifiers that can be used in PGA mode, all terminals accessible with analogue 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
– Two 16-bit 6-channel advanced-control timer, 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
– Two 16-bit basic timer 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 half/full duplex I2S interface, 4 to 16 programmable bit frames
– USB 2.0 full speed interface
– Infra-red transmitter

• Serial wire debug, Cortex®-M4 with FPU ETM, JTAG

• 96-bit unique ID