● 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
● VDD, VDDAvoltage range: 2.0 to 3.6 V
● Power-on/Power down reset (POR/PDR)
● Programmable voltage detector (PVD)
● Low-power: Sleep, Stop, and Standby
● VBATsupply 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
● USB 2.0 full-speed interface
● 1 x CAN interface (2.0B Active)
● Infrared transmitter
● Serial wire debug (SWD), JTAG
● 96-bit unique ID
