Features
■ Ultra-low-power with FlexPowerControl – 1.71 V to 3.6 V power supply – -40 °C to 85/105/125 °C temperature range – 300 nA in VBAT mode: supply for RTC and 32x32-bit backup registers – 30 nA Shutdown mode (5 wakeup pins) – 120 nA Standby mode (5 wakeup pins) – 420 nA Standby mode with RTC – 1.1 µA Stop 2 mode, 1.4 µA Stop 2 with RTC – 100 µA/MHz run mode – Batch acquisition mode (BAM) – 4 µs wakeup from Stop mode – Brown out reset (BOR) in all modes except shutdown – Interconnect matrix
■ Core: ARM® 32-bit Cortex®-M4 CPU with FPU, Adaptive real-time accelerator (ART Accelerator™) allowing 0-wait-state execution from Flash memory, frequency up to 80 MHz, MPU, 100DMIPS/1.25DMIPS/MHz (Dhrystone 2.1), and DSP instructions
■ Clock Sources – 4 to 48 MHz crystal oscillator – 32 kHz crystal oscillator for RTC (LSE) – Internal 16 MHz factory-trimmed RC (±1%) – Internal low-power 32 kHz RC (±5%) – Internal multispeed 100 kHz to 48 MHz oscillator, auto-trimmed by LSE (better than ±0.25 % accuracy) – 3 PLLs for system clock, USB, audio, ADC
■ RTC with HW calendar, alarms and calibration
■ Up to 21 capacitive sensing channels: support touchkey, linear and rotary touch sensors
■ 16x timers: 2 x 16-bit advanced motor-control, 2 x 32-bit and 5 x 16-bit general purpose, 2x 16-bit basic, 2x low-power 16-bit timers (available in Stop mode), 2x watchdogs, SysTick timer
■ Up to 114 fast I/Os, most 5 V-tolerant, up to 14 I/Os with independent supply down to 1.08 V
■ Memories – Up to 1 MB Flash, 2 banks read-while- write, proprietary code readout protection – Up to 128 KB of SRAM including 32 KB with hardware parity check – External memory interface for static memories supporting SRAM, PSRAM and NOR memories – Quad SPI memory interface
■ 4x digital filters for sigma delta modulator
■ Rich analog peripherals (independent supply) – 3× 12-bit ADC 5 Msps, up to 16-bit with hardware oversampling, 200 µA/Msps – 2x 12-bit DAC, low-power sample and hold – 2x operational amplifiers with built-in PGA – 2x ultra-low-power comparators
■ 18x communication interfaces – USB OTG 2.0 full-speed, LPM and BCD – 2x SAIs (serial audio interface) – 3x I2C FM+(1 Mbit/s), SMBus/PMBus – 6x USARTs (ISO 7816, LIN, IrDA, modem) – 3x SPIs (4x SPIs with the Quad SPI) – CAN (2.0B Active) and SDMMC interface – SWPMI single wire protocol master I/F
■ 14-channel DMA controller
■ True random number generator
■ CRC calculation unit, 96-bit unique ID
■ Development support: serial wire debug (SWD), JTAG, Embedded Trace Macrocell™