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