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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