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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

? 150 nA Shutdown mode (24 wake-up pins)

? 195 nA Standby mode (24 wake-up pins)

? 480 nA Standby mode with RTC

? 2 μA Stop 3 mode with 40-Kbyte SRAM

? 8.2 μA Stop 3 mode with 2.5-Mbyte SRAM

? 4.65 μA Stop 2 mode with 40-Kbyte SRAM

? 17.5 μA Stop 2 mode with 2.5-Mbyte SRAM

? 18.5 μA/MHz Run mode at 3.3 V

Core

? Arm? 32-bit Cortex?-M33 CPU with

TrustZone?, MPU, DSP, and FPU

ART Accelerator

? 32-Kbyte ICACHE allowing 0-wait-state

execution from Flash and external memories:

frequency up to 160 MHz, 240 DMIPS

? 16-Kbyte DCACHE1 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)

? 369 ULPMark?-CP

? 89 ULPMark?-PP

? 47.2 ULPMark?-CM

? 120000 SecureMark?-TLS

Memories

? Up to 4-Mbyte Flash memory with ECC, 2

banks read-while-write, including 512 Kbytes

with 100 kcycles

? With SRAM3 ECC off: 2514-Kbyte RAM

including 66 Kbytes with ECC

? With SRAM3 ECC on: 2450-Kbyte RAM

including 322 Kbytes with ECC

? External memory interface supporting SRAM,

PSRAM, NOR, NAND, and FRAM memories

? 2 Octo-SPI memory interfaces

? 16-bit HSPI memory interface up to 160 MHz

Rich graphic features

? Neo-Chrom GPU (GPU2D) accelerating any

angle rotation, scaling, and perspective correct

texture mapping

? 16-Kbyte DCACHE2

? Chrom-ART accelerator (DMA2D) for smooth

motion and transparency effects

? Chrom-GRC (GFXMMU) allowing up to 20 %

of graphic resources optimization

? MIPI? DSI Host controller with two DSI lanes

running at up to 500 Mbit/s each

? LCD-TFT controller (LTDC)

? Digital camera interface

General-purpose input/outputs

? Up to 156 fast I/Os with interrupt capability

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

independent supply down to 1.08 V

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

? 5 PLLs for system clock, USB, audio, ADC, DSI

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

Up to 17 timers, 2 watchdogs and RTC

? 19 timers: 2 16-bit advanced motor-control,

4 32-bit, 3 16-bit general purpose, 2 16-bit

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

mode), 2 SysTick timers, and 2 watchdogs

? RTC with hardware calendar, alarms, and

calibration

Up to 25 communication peripherals

? 1 USB Type-C?/USB power delivery controller

? 1 USB OTG high-speed with embedded PHY

? 2 SAIs (serial-audio interface)

? 6 I2C FM+(1 Mbit/s), SMBus/PMBus?

? 7 USARTs (ISO 7816, LIN, IrDA, modem)

? 3 SPIs (6x SPIs with OCTOSPI/HSPI)

? 1 CAN FD controller

? 2 SDMMC interfaces

? 1 multi-function digital filter (6 filters) + 1 audio

digital filter with sound-activity detection

? Parallel synchronous slave interface

Mathematical coprocessor

? CORDIC for trigonometric functions

acceleration

? FMAC (filter mathematical accelerator)

Rich analog peripherals (independent

supply)

? 2 14-bit ADC 2.5-Msps with hardware

oversampling

? 1 12-bit ADC 2.5-Msps, with hardware

oversampling, autonomous in Stop 2 mode

? 12-bit DAC (2 channels), low-power sample,

and hold, autonomous in Stop 2 mode

? 2 operational amplifiers with built-in PGA

? 2 ultra-low-power comparators