Features：

• Includes ST state-of-the-art patentedtechnology

• Ultra-low-power with FlexPowerControl

– 1.71 V to 3.6 V power supply

– -40 °C to 85/125 °C temperature range

– 320 nA in VBAT mode: supply for RTC and32x32-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 withRTC

– 91 µA/MHz run mode (LDO mode)

– 37 μA/MHz run mode (at 3.3 V SMPSmode)

– Batch acquisition mode (BAM)

– 5 µs wakeup from Stop mode

– Brown out reset (BOR) in all modes exceptshutdown

– Interconnect matrix

• Core: Arm® 32-bit Cortex®-M4 CPU with FPU,Adaptive real-time accelerator (ARTAccelerator™) allowing 0-wait-state executionfrom Flash memory, frequency up to 80 MHz,MPU, 100 DMIPS and DSP instructions

• Performance benchmark

– 1.25 DMIPS/MHz (Drystone 2.1)

– 273.55 Coremark® (3.42 Coremark/MHz at80 MHz)

• Energy benchmark

– 279 ULPMark™ CP score

– 80.2 ULPMark™ PP score

• 16 timers: 2x 16-bit advanced motor-control, 2x32-bit and 5x 16-bit general purpose, 2x 16-bitbasic, 2x low-power 16-bit timers (available inStop mode), 2x watchdogs, SysTick timer

• RTC with HW calendar, alarms and calibration

 Up to 136 fast I/Os, most 5 V-tolerant, up to 14I/Os with independent supply down to 1.08 V

• Dedicated Chrom-ART Accelerator forenhanced 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 withhardware parity check

– External memory interface for staticmemories 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 MHzoscillator, 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: supporttouchkey, linear and rotary touch sensors

• 4x digital filters for sigma delta modulator

• Rich analog peripherals (independent supply)

– 3× 12-bit ADCs 5 Msps, up to 16-bit withhardware oversampling, 200 µA/Msps

– 2x 12-bit DAC output channels, low-powersample and hold

– 2x operational amplifiers with built-in PGA

– 2x ultra-low-power comparators

• 20x communication interfaces

– USB OTG 2.0 full-speed, LPM and BCD

– 2x SAIs (serial audio interface)

– 4x I2C FM+(1 Mbit/s), SMBus/PMBus

– 5x U(S)ARTs (ISO 7816, LIN, IrDA,modem)

– 1x LPUART

– 3x SPIs (4x SPIs with the Quad SPI)

– 2x CANs (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™