The STM32F303x6/8 family incorporates the high-performance Arm? Cortex?-M4 32-bit RISC core operating at up to 72 MHz frequency embedding a floating point unit (FPU), high-speed embedded memories (up to 64 Kbytes of Flash memory, 12 Kbytes of SRAM), and an extensive range of enhanced I/Os and peripherals connected to two APB buses. The STM32F303x6/8 microcontrollers offer up to two fast 12-bit ADCs (5 Msps), up to three ultra-fast comparators, an operational amplifier, three DAC channels, a low-power RTC, one general-purpose 32-bit timer, one timer dedicated to motor control, and four general-purpose 16-bit timers. They also feature standard and advanced communication interfaces: one I2C, one SPI, up to three USARTs and one CAN. The STM32F303x6/8 family operates in the –40 to +85 °C and –40 to +105 °C temperature ranges from 2.0 to 3.6 V power supply. A comprehensive set of power-saving modes allow the design of low-power applications. The STM32F303x6/8 family offers devices in 32 and 64-pin packages. Depending on the device chosen, different sets of peripherals are included.
All 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
Memories
Up to 64 Kbytes of Flash memory
12 Kbytes of SRAM with HW parity check
Routine booster: 4 Kbytes of SRAM on instruction and data bus with HW parity check (CCM)
CRC calculation unit
Reset and supply management
Low-power modes: Sleep, Stop, Standby
VDD,VDDA voltage range: 2.0 to 3.6 V
Power-on/Power-down reset (POR/PDR)
Programmable voltage detector (PVD)
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 (up to 64 MHz with PLL option)
Internal 40 kHz oscillator
Up to 51 fast I/O ports, all mappable on external interrupt vectors, several 5 V-tolerant
Interconnect matrix
7-channel DMA controller
Up to two ADC 0.20 μs (up to 21 channels) with selectable resolution of 12/10/8/6 bits, 0 to 3.6 V conversion range, single-ended / differential mode, separate analog supply from 2.0 to 3.6 V
Temperature sensor
Up to three 12-bit DAC channels with analog supply from 2.4 V to 3.6 V
Three ultra-fast rail-to-rail analog comparators with analog supply from 2 to 3.6 V
One operational amplifiers that can be used in PGA mode, all terminals accessible with analog supply from 2.4 to 3.6 V
Up to 18 capacitive sensing channels supporting touchkeys, linear and rotary touch sensors
Up to 11 timers
One 32-bit timer and one 16-bit timer with up to 4 IC/OC/PWM or pulse counter and quadrature (incremental) encoder input
One 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, 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 DAC
Calendar RTC with alarm, periodic wakeup from Stop
Communication interfaces
CAN interface (2.0 B Active) and one SPI
One I2C with 20 mA current sink to support Fast mode plus, SMBus/PMBus
Up to 3 USARTs, one with ISO/IEC 7816 interface, LIN, IrDA, modem control
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