Features

Includes ST state-of-the-art patented

technology

Ultra-low-power with FlexPowerControl

• 1.71 V to 3.6 V power supply

• –40 °C to +85/125 °C temperature range

• Low-power background-autonomous mode

(LPBAM): autonomous peripherals with DMA,

functional down to Stop 2 mode

• VBAT mode: supply for RTC, 32 x 32-bit backup

registers and 2-Kbyte backup SRAM

• 90 nA Shutdown mode (23 wake-up pins)

• 200 nA Standby mode (23 wake-up pins)

• 370 nA Standby mode with RTC

• 1.4 μA Stop 3 mode with 16-Kbyte SRAM

• 2.2 μA Stop 3 mode with full SRAM

• 3.0 μA Stop 2 mode with 16-Kbyte SRAM

• 4.6 μA Stop 2 mode with full SRAM

• 16.3 μA/MHz Run mode @ 3.3 V

Core

• Arm® 32-bit Cortex®-M33 CPU with

TrustZone®, MPU, DSP, and FPU

ART Accelerator

• 8-Kbyte instruction cache allowing 0-wait-state

execution from flash and external memories:

up to 160 MHz, 240 DMIPS

• 4-Kbyte data cache for external memories

Power management

• Embedded regulator (LDO) and SMPS

step-down converter supporting switch

on-the-fly and voltage scaling

Benchmarks

• 1.5 DMIPS/MHz (Drystone 2.1)

• 651 CoreMark® (4.07 CoreMark®/MHz)

• 464 ULPMark™-CP

• 125 ULPMark™-PP

• 54 ULPMark™-CM

• 137000 SecureMark™-TLS

Memories

• Up to 512-Kbyte flash memory with ECC, 2

banks read-while-write, and 100 kcycles

• 274-Kbyte SRAM including up to 64-Kbyte

SRAM with ECC ON

• 1 Octo-SPI memory interface

Security

• Arm® TrustZone® and securable I/Os,

memories and peripherals

• Flexible life cycle scheme with RDP and

password protected debug

• Root of trust thanks to unique boot entry and

secure hide protection area (HDP)

• Secure firmware installation (SFI) thanks to

embedded root-secure services (RSS)

• Secure firmware upgrade support with TF-M

• HASH hardware accelerator

• True random number generator, NIST

SP800-90B compliant

• 96-bit unique ID

• 512-byte OTP (one-time programmable)

• Active tampers

Clock management

• 4 to 50 MHz crystal oscillator

• 32 kHz crystal oscillator for RTC (LSE)

• Internal 16 MHz factory-trimmed RC (±1)

• Internal low-power 32 kHz RC (±5)

• 2 internal multispeed 100 kHz to 48 MHz

oscillators, including one auto-trimmed by LSE

(better than ±0.25 accuracy)

• Internal 48 MHz with clock recovery

• 3 PLLs for system clock, USB, audio, ADC

General-purpose input/outputs

• Up to 82 fast I/Os with interrupt capability most

5V-tolerant and up to 14 I/Os with independent

supply down to 1.08 V

Up to 17 timers and 2 watchdogs

• 2 16-bit advanced motor-control, 4 32-bit,

5 16-bit, 4 low-power 16-bit (available in Stop

mode), 2 SysTick timers and 2 watchdogs

• RTC with hardware calendar and calibration

Up to 19 communication peripherals

• 1 USB full-speed selectable host or device

controller

• 1 SAI (serial-audio interface)

• 4 I2C FM+(1 Mbit/s), SMBus/PMBus®

• 5 USARTs (ISO 7816, LIN, IrDA, modem)

• 3 SPIs (4x SPIs with OCTOSPI)

• 1 CAN FD controller

• 1 SDMMC interface

• 1 multi-function digital filter (2 filters)+ 1 audio

digital filter with sound-activity detection

• Parallel synchronous slave interface

16- and 4-channel DMA controllers,

functional in Stop mode

Graphic features

• 1 digital camera interface

Mathematical co-processor

• CORDIC for trigonometric functions

acceleration

• Filter mathematical accelerator (FMAC)

Up to 20 capacitive sensing channels

• Support touch key, linear and rotary touch

sensors

Rich analog peripherals (independent

supply)

• 14-bit ADC 2.5-Msps with hardware

oversampling

• 12-bit ADC 2.5-Msps, with hardware

oversampling, autonomous in Stop 2 mode

• 2 12-bit DAC, low-power sample and hold

• 1 operational amplifier with built-in PGA

• 1 ultra-low-power comparator