Features
■ Core: Arm® 32-bit Cortex®-M4 CPU with FPU (72 MHz max.), single-cycle multiplication and HW division, DSP instruction
■ Memories – 32 to 64 Kbytes of Flash memory – 16 Kbytes of SRAM on data bus
■ CRC calculation unit
■ Reset and power management – VDD, VDDA voltage range: 2.0 to 3.6 V – Power-on/Power down reset (POR/PDR) – Programmable voltage detector (PVD) – Low-power: 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 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, auto baudrate 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