STM32H5 73 MIY3 QTR | ST Microelectronics | High-performance, secure 32-bit MCU with Cortex-M33 core, TrustZone hardware security isolation, STM32H5 series, industrial-grade WLCSP ultra-small package version

STM32H573MIY3QTR

I. Appearance and packaging

Package: WLCSP-80 (wafer-level ball grid array), reel-to-reel TR packaging, model suffix -TR = Tape & Reel, mass production SMD shipment STMicroele...

Size: 3.50 × 3.27 × 0.6 mm, ball spacing 0.35 mm, no external pins, 80 tin balls on the bottom as electrical connection points, ultra-thin micro-package, suitable for space-constrained devices STMicroele...

Appearance description: The top surface of the chip is flat, the wafer is molded, and the ST silk-screening mark is printed; No pins, all IO and power are on the bottom solder ball array; WLCSP has high requirements for PCB pad accuracy, steel mesh, and reflow process; Moisture sensitivity level MSL3, welding must be completed within the specified time after opening static6.ar...

Model suffix interpretation: MI = WLCSP80 package;Y3 = temperature version;Q=SMPS core power support;TR = Roll-up packaging STMicroele...

2. Core electrical performance

form

parameter

Specifications

kernel

Arm Cortex‐M33, with TrustZone, FPU, DSP instruction set, 250 MHz main frequency, STMicroelectronics

performance

375 DMIPS, 1023 CoreMark, ART zero-wait cache

On-chip Flash

2 MB, dual bank, supports read and write parallel, with ECC error correctionSTMicroele...

SRAM

640 KB (SRAM1 + SRAM2 + SRAM3 + backup RAM) STMicroelectronics

power supply

1.71‑3.6 V； The kernel supports internal LDO / SMPS step-down mode to reduce power consumption and heat STMicroele...

Temperature range

Industrial grade -40 ℃ ~ + 85 ℃, maximum junction temperature of 130 ℃ STMicroele...

Communication peripherals

I3C、I²C×4、SPI×6、I2S×3、USART×6、UART×6、FDCAN×2、USB‑PD、100MEthernet, DCMI camera interface, OCTOSPI, 2-channel SD/MMC/STMicroele...

Analog peripherals

2×12bit-ADC, 2×12bit -DAC, built-in temperature sensor STMicroele...

Security hardware

TrustZone, dual AES accelerators, PKA public key encryption, true random number TRNG, ST-iROT trusted root, PSA Level3, SESIP3 certification target STMicroelectronics

Debugging interface

SWD/JTAG, security certification debug access, ETM tracking unit STMicroele...

III. Working principle

Based on the Cortex-M33 core of the Armv8-M architecture, the ART accelerator realizes Flash zero-wait operation; Hardware TrustZone divides the system into a secure domain and a normal domain. Keys, secure boot, and encryption algorithms run in the secure domain, while business applications run in the normal domain. Hardware-level isolation prevents firmware tampering. Built-in hardware encryption accelerator, no need for CPU to consume computing power for encryption and decryption; Supports SMPS mode, internal chip generates core voltage, reduces external power devices, BOM simplified static6.ar...。

IV. Core Function Highlights

Hardware-level security capabilities are outstanding: ST-iROT cures the trusted root, secure boot, secure firmware upgrade, hardware unique key HUK, PSA Level3 security level, suitable for data encryption, anti-cracking devices, STMicroelectronics.

250MHz high-performance, 2MB large Flash + 640KB large RAM, can run TF-M security firmware, RTOS, complex business logic.

WLCSP‐80 is ultra-small in size, designed for lightweight and portable hardware;Supports SMPS kernel power supply, reducing the number of external power supply chips.

Complete peripherals: FDCAN, USB-PD, 100 Mbps Ethernet, DCMI image interface, OctoSPI high-speed external storage, covering industrial, IoT, wearable multiple interface requirements STMicroele...。

Rich low-power modes: Sleep/Stop/Standby, with RTC backup domain, friendly to battery-powered devices.

V. Typical application scenarios

Secure IoT devices: Encryption gateway, authentication terminal, data acquisition terminal

Portable smart hardware: space-constrained modules, wearable devices, small controllers

Industrial control: industrial sensor nodes, HMI sub-board, FDCAN bus equipment

USB-PD device, small IoT device with image acquisition

Embedded products that require firmware tamper-proofing and device identity encryption

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