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

• 160 nA Shutdown mode (24 wake-up pins)

• 210 nA Standby mode (24 wake-up pins)

• 530 nA Standby mode with RTC

• 1.9 μA Stop 3 mode with 16-Kbyte SRAM

• 4.3 μA Stop 3 mode with full SRAM

• 4.0 μA Stop 2 mode with 16-Kbyte SRAM

• 8.95 μA Stop 2 mode with full SRAM

• 19.5 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)

• 450 ULPMark™-CP

• 109 ULPMark™-PP

• 51.5 ULPMark™-CM

• 133000 SecureMark™-TLS

Memories

• 2-Mbyte flash memory with ECC, 2 banks

read-while-write, including 512 Kbytes with

100 kcycles

• 786-Kbyte SRAM with ECC OFF or 722-Kbyte

SRAM including up to 322-Kbyte SRAM with

ECC ON

• External memory interface supporting SRAM,

PSRAM, NOR, NAND, and FRAM memories

• 2 Octo-SPI memory interfaces

Security and cryptography

• PSA level 3 and SESIP level 3 certified

• 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 data storage with hardware unique key

(HUK)

• Secure firmware upgrade support with TF-M

• 2 AES coprocessors including one with

DPA resistance

• Public key accelerator, DPA resistant

• On-the-fly decryption of Octo-SPI external

memories

• 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 autotrimmed 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 136 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 22 communication peripherals

• 1 USB Type-C®/USB power delivery controller

• 1 USB OTG 2.0 full-speed controller

• 2 SAIs (serial audio interface)

• 4 I2C FM+(1 Mbit/s), SMBus/PMBus®

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

• 3 SPIs (5x SPIs with the dual OCTOSPI)

• 1 CAN FD controller

• 2 SDMMC interfaces

• 1 multifunction digital filter (6 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

• Chrom-ART Accelerator (DMA2D) for

enhanced graphic content creation

• 1 digital camera interface

Mathematical coprocessor

• CORDIC for trigonometric functions

acceleration

• Filter mathematical accelerator (FMAC)

Up to 22 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

• 2 operational amplifiers with built-in PGA

• 2 ultralow-power comparators

CRC calculation unit

Debug

• Development support: serial-wire debug

(SWD), JTAG, Embedded Trace Macrocell™

(ETM)

ECOPACK2 compliant packages