This is information on a product in full production.

April 2024 DS14540 Rev 1 1/228

STM32H523xx

Arm

Cortex

-M33 32-bit MCU+TrustZone

+ FPU, 375 DMIPS

250 MHz, 512-Kbyte flash, 272-Kbyte RAM

Datasheet - production data

Features

Includes ST state-of-the-art patented technology

Core

• Arm

Cortex

-M33 CPU with TrustZone

FPU, frequency up to 250 MHz, MPU,

375 DMIPS (Dhrystone 2.1)

ART Accelerator

• 8-Kbyte instruction cache allowing

0-wait-state execution from flash and external

memories

• 4-Kbyte data cache for external memories

Benchmarks

• 1.5 DMIPS/MHz (Drystone 2.1)

• 1023 CoreMark

(4.092 CoreMark

/MHz)

Memories

• Up to 512 Kbytes of embedded flash memory

with ECC, two banks read-while-write

• Up to 48-Kbyte per bank with high-cycling

capability (100 K cycles) for data flash

• 2-Kbyte OTP (one-time programmable)

• 272 Kbytes of SRAM (80-Kbyte SRAM2 with

ECC)

• 2 Kbytes of backup SRAM available in the

lowest power modes

• Flexible external memory controller with up to

16-bit data bus: SRAM, PSRAM, FRAM,

NOR/NAND memories

• One Octo-SPI memory interface with support

for serial PSRAM/NAND/NOR, hyper

RAM/flash frame formats

• One SD/SDIO/MMC interface

Clock management

• Internal oscillators: 64 MHz HSI,

48 MHz HSI48, 4 MHz CSI, 32 kHz LSI

• External oscillators: 4-50 MHz HSE,

32.768 kHz LSE

General-purpose inputs/outputs

• Up to 112 fast I/Os with interrupt capability

(most 5 V tolerant)

• Up to ten I/Os with independent supply down to

1.08 V

Low-power consumption

• Sleep, Stop, and Standby modes

• V

BAT

supply for RTC, 32 backup registers

(32-bit)

Security

• Arm

TrustZone

with Armv8-M mainline

security extension

• Up to eight configurable SAU regions

• TrustZone

aware and securable peripherals

UFBGA

LQFP48 (7 x 7 mm)

LQFP64 (10 x 10 mm)

LQFP100 14 x 14 mm)

LQFP144 (20 x 20 mm)

UFBGA100 (7 x 7 mm)

UFBGA144 (10 x 10 mm)

WLCSP39 (2.76 x 2.78 mm,

pitch 0.4mm)

UFQFPN48 (7 x 7 mm)

www.st.com

STM32H523xx

2/228 DS14540 Rev 1

• Flexible life cycle scheme with secure debug

authentication

• SESIP3 and PSA Level 3 certified assurance

target

• SFI (secure firmware installation)

• Root of trust thanks to unique boot entry and

secure hide protection area (HDP)

• Secure firmware upgrade support with TF-M

• Public key accelerator, ECDSA signature

verification

• HASH hardware accelerator

• True random number generator, NIST

SP800-90B compliant

• 96-bit unique ID

• Active tampers

Two DMA controllers to offload the CPU

• Two dual-port DMAs with FIFO

Reset and supply management

• 1.71 V to 3.6 V application supply and I/O

• POR, PDR, PVD, and BOR

• Embedded regulator with configurable scalable

output to supply the digital circuitry

Up to 16 timers

• 10x 16-bit (including two low-power 16-bit

timers available in Stop mode)

• Two 32-bit timers with up to four IC/OC/PWM

or pulse counters and quadrature (incremental)

encoder input

• Two watchdogs

• Two SysTick timers

Up to 21 communication interfaces

• Up to three I2Cs Fm+ (SMBus/PMBus

)

• Two I3Cs

• Up to six U(S)ARTs (ISO7816 interface, LIN,

IrDA, modem control) and one LPUART

• Up to four SPIs including three muxed

full-duplex I2S audio class accuracy via

internal audio PLL or external clock, and up to

four additional SPIs from four USARTs when

configured in Synchronous mode (one

additional SPI with OctoSPI)

• Two FDCAN controllers

• One 8- to 14-bit camera interface

• One 16-bit parallel slave synchronous-

interface

• One HDMI-CEC

• One USB 2.0 full-speed host and device

(crystal-less)

• One USB Type-C

/ USB Power Delivery r3.1

Analog

• Two 12-bit ADCs with up to 5 Msps in 12-bit

• One 12-bit DAC with two channels

• Digital temperature sensor

• Voltage reference buffer

Debug

• Authenticated debug and flexible device life

cycle

• Serial wire-debug (SWD), JTAG, Embedded

Trace Macrocell™ (ETM)

ECOPACK2 compliant packages

Table 1. Device summary

Reference Part numbers

STM32H523xx

STM32H523CC, STM32H523RC, STM32H523VC, STM32H523ZC,

STM32H523CE, STM32H523HE, STM32H523RE, STM32H523VE, STM32H523ZE