ARM-based 32-bit MCU

The STM32F301x6/8 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). The family incorporates high-speed embedded memories (up to 64 Kbyte of Flash memory, 16 Kbyte of SRAM), and an extensive range of enhanced I/Os and peripherals connected to two APB buses.The devices offer a fast 12-bit ADC (5 Msps), three comparators, an operational amplifier, up to 18 capacitive sensing channels, one DAC channel, a low-power RTC, one general-purpose 32-bit timer, one timer dedicated to motor control, and up to three general-purpose 16-bit timers, and one timer to drive the DAC. They also feature standard and advanced communication interfaces: three I²Cs, up to three USARTs, up to two SPIs with multiplexed full-duplex I²S, and an infrared transmitter.The STM32F301x6/8 family operates in the –40 to +85°C and –40 to +105°C temperature ranges from at a 2.0 to 3.6 V power supply. A comprehensive set of power-saving mode allows the design of low-power applications.The STM32F301x6/8 family offers devices in 32-, 48-, 49- and 64-pin packages.The set of included peripherals changes with the device chosen.

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

Memories

32 to 64 Kbyte of Flash memory

16 Kbyte of SRAM on data bus

CRC calculation unit

Reset and power management

V_DD, V_DDAvoltage range: 2.0 to 3.6 V

Power-on/Power down reset (POR/PDR)

Programmable voltage detector (PVD)

Low-power: Sleep, Stop, and Standby

V_BATsupply 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 51 fast I/O ports, all mappable on external interrupt vectors, several 5 V-tolerant

Interconnect matrix

7-channel DMA controller supporting timers, ADCs, SPIs, I²Cs, USARTs and DAC

1 × ADC 0.20 µs (up to 15 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

1 x 12-bit DAC channel with analog supply from 2.4 to 3.6 V

Three fast rail-to-rail analog comparators with analog supply from 2.0 to 3.6 V

1 x operational amplifier that can be used in PGA mode, all terminal accessible with analog supply from 2.4 to 3.6 V

Up to 18 capacitive sensing channels supporting touchkey, linear and rotary sensors

Up to 9 timers

One 32-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

Three 16-bit timers with IC/OC/OCN or PWM, deadtime gen. and emergency stop

One 16-bit basic timer to drive the DAC

2 watchdog timers (independent, window)

SysTick timer: 24-bit downcounter

Calendar RTC with alarm, periodic wakeup from Stop/Standby

Communication interfaces

Three I2Cs with 20 mA current sink to support Fast mode plus

Up to 3 USARTs, 1 with ISO 7816 I/F, autobaudrate detect and Dual clock domain

Up to two SPIs with multiplexed full duplex I2S

Infrared transmitter

Serial wire debug (SWD), JTAG

96-bit unique ID