Features
• Ultra-low-power with FlexPowerControl
– 1.71 V to 3.6 V power supply
– -40 °C to 85/105/125 °C temperature range
– 320 nA in VBAT mode: supply for RTC and 32x32-bit backup registers
– 25 nA Shutdown mode (5 wakeup pins)
– 108 nA Standby mode (5 wakeup pins)
– 426 nA Standby mode with RTC
– 2.57 μA Stop 2 mode, 2.86 μA Stop 2 with RTC
– 91 μA/MHz run mode (LDO Mode)
– 37 μA/MHz run mode (@3.3 V SMPS Mode)
– Batch acquisition mode (BAM)
– 5 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
• Performance benchmark
– 1.25 DMIPS/MHz (Drystone 2.1)
– 273.55 Coremark® (3.42 Coremark/MHz @ 80 MHz)
• Energy benchmark
– 217 ULPBENCHTM score
• 16 x timers: 2 x 16-bit advanced motor-control, 2 x 32-bit and 5 x 16-bit general purpose, 2 x 16-bit basic, 2 x low-power 16-bit timers (available in Stop mode), 2x watchdogs, SysTick timer
• RTC with HW calendar, alarms and calibration
• Up to 136 fast I/Os, most 5 V-tolerant, up to 14 I/Os with independent supply down to 1.08 V
• Dedicated Chrom-ART Accelerator™ for enhanced graphic content creation (DMA2D)
• 8- to 14-bit camera interface up to 32 MHz (black&white) or 10 MHz (color)
• Memories
– Up to 1 MB Flash, 2 banks read-whilewrite, proprietary code readout protection
– 320 KB of SRAM including 64 KB with hardware parity check
– External memory interface for static memories supporting SRAM, PSRAM, NOR and NAND memories
– Dual-flash Quad SPI memory interface
• 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)
– Internal 48 MHz with clock recovery
– 3 PLLs for system clock, USB, audio, ADC
• LCD 8 × 40 or 4 × 44 with step-up converter
• Up to 24 capacitive sensing channels: support touchkey, linear and rotary touch sensors
• 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
– 2 x 12-bit DAC, low-power sample and hold
– 2 x operational amplifiers with built-in PGA
– 2 x ultra-low-power comparators
• 20 x communication interfaces
– USB OTG 2.0 full-speed, LPM and BCD
– 2 x SAIs (serial audio interface)
– 4 x I2C FM+(1 Mbit/s), SMBus/PMBus
– 5 x U(S)ARTs (ISO 7816, LIN, IrDA, modem)
– 1 x LPUART
– 3 x SPIs (4 x SPIs with the Quad SPI)
– 2x CAN (2.0B Active) and SDMMC
– SWPMI single wire protocol master I/F
– IRTIM (Infrared interface)
• 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™