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:
– V
DD, VDDA voltage range: 2.0 V to 3.6 V
? Memories
– 128 to 256 Kbytes of Flash memory
– Up to 40 Kbytes of SRAM, with HW parity
check implemented on the first 16 Kbytes.
– Routine booster: 8 Kbytes of SRAM on
instruction and data 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
– V
BAT 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 μS (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 analog supply
from 2 to 3.6 V
? 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
? Four operational amplifiers that can be used in
PGA mode, all terminals 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
– 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
– 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
half/full duplex I2S interface, 4 to 16
programmable bit frames
– USB 2.0 full speed interface
– Infrared transmitter
? Serial wire debug, Cortex®-M4 with FPU ETM,
JTAG
? 96-bit unique ID
Table 1. Device summary
Reference Part number
STM32F303xB STM32F303CB, STM32F303RB, STM32F303VB
STM32F303xC STM32F303CC, STM32F303RC,