STMicroelectronics STM32U575ZIT6

Overview

STM32U575ZIT6 from STMicroelectronics is an ultra-low-power Arm® Cortex®-M33 32-bit microcontroller with TrustZone® security, 240 DMIPS performance, 2 MB Flash (ECC), 786 KB SRAM, and integrated SMPS power management. It operates from 1.71–3.6 V across –40 °C to +85 °C and supports autonomous low-power background operation (LPBAM) down to Stop 2 mode - enabling battery-powered IoT sensor nodes with secure firmware updates and real-time data acquisition.

For engineers reviewing the STM32U575ZIT6 datasheet, STM32U575ZIT6 pinout, STM32U575ZIT6 application, or STM32U575ZIT6 equivalent, key selection considerations include its dual ADC architecture (14-bit @ 2.5 Msps + 12-bit autonomous in Stop 2), TrustZone-enabled secure boot and runtime isolation, octo-SPI interface for external memory expansion, and 136 GPIOs with 5V tolerance - critical for industrial edge controllers and medical wearables requiring certified functional safety and long-term power efficiency.

Technical Context

The STM32U575ZIT6 implements a dual-core security architecture: the Arm Cortex-M33 CPU includes TrustZone for hardware-enforced separation of secure/non-secure code, MPU for memory protection, and FPU for deterministic floating-point computation. Its ART Accelerator features 8-KB instruction cache and 4-KB data cache, enabling zero-wait-state execution at up to 160 MHz.

Power architecture integrates both LDO and SMPS step-down converter with on-the-fly voltage scaling, supporting dynamic transition between Run (19.5 µA/MHz), Stop 2 (4.0 µA), and Shutdown (160 nA) modes. The LPBAM framework enables peripherals like ADC, timers, and DMA to operate autonomously without CPU intervention - essential for energy-constrained applications such as wireless sensor transceivers and portable diagnostics.

Key Specifications

Pinout & Package

STM32U575ZIT6 uses a 144-pin LQFP package (14 × 14 mm, 0.5 mm pitch), compatible with standard PCB assembly processes and offering full I/O access including dedicated UCPD, USB OTG, OCTOSPI, and dual SDMMC interfaces.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar ultra-low-power secure MCU applications.

Compared with STM32L562ZEJ6 and LPC55S69JBD100, the STM32U575ZIT6 uniquely combines 2 MB Flash, SMPS-based power efficiency, LPBAM autonomy, and dual high-speed ADCs - making it the only option among the three capable of sustaining 10+ year battery life while running complex sensor fusion and secure communications concurrently.

Availability

STM32U575ZIT6 is available at Aetrix Electronics and suitable for industrial edge sensor nodes, portable medical diagnostics, smart energy meters, and wearable health monitors requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for STM32U575ZIT6 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing microcontrollers, power management ICs, MEMS sensors, and automotive SoCs since 1987.

The STM32U5 series targets ultra-low-power, high-security embedded applications - combining Arm TrustZone with ST's proprietary FlexPowerControl technology to deliver best-in-class energy efficiency for certified IoT and medical devices.

FAQ

What is the maximum operating frequency and corresponding DMIPS rating of the STM32U575ZIT6?

The STM32U575ZIT6 runs at up to 160 MHz with an ART Accelerator and 8-KB instruction cache, achieving 240 DMIPS (Dhrystone 2.1). This performance level is sustained across the full voltage range (1.71–3.6 V) and temperature range (–40 °C to +85 °C), verified per DS13737 Rev 10 Section 3.1 and Table 51.

Does the STM32U575ZIT6 support true autonomous operation in low-power modes without CPU involvement?

Yes - the Low-Power Background Autonomous Mode (LPBAM) enables peripherals including ADC, timers, DMA, and comparators to operate fully autonomously in Stop 2 mode. Verified in DS13737 Rev 10 Section 3.9.3 and Figure 22, this feature allows continuous sensor sampling and data movement without CPU wake-up, reducing average current by up to 70% in duty-cycled applications.

What security certifications does the STM32U575ZIT6 support out-of-the-box?

The device supports PSA Certified Level 3 and SESIP Level 3 through hardware-enforced TrustZone isolation, secure boot with unique entry point, 512-byte OTP, HASH accelerator, and NIST SP800-90B-compliant TRNG. These capabilities are documented in DS13737 Rev 10 Sections 3.6, 3.41, and 3.37, and validated in ST's official PSA certification reports.

Which external memory interfaces are available on the STM32U575ZIT6 for expanding code or data storage?

The STM32U575ZIT6 provides two Octo-SPI interfaces supporting x8 DTR mode for NOR/PSRAM, plus an FSMC supporting SRAM, PSRAM, NOR, NAND, and FRAM. These are electrically and functionally distinct: OCTOSPI targets high-speed serial memory (≤133 MHz), while FSMC handles parallel memory with up to 16-bit data bus - confirmed in DS13737 Rev 10 Sections 3.25 and 3.24.