STM32U575ZIT6 - 160MHz Cortex-M33 MCU 2MB Flash | ST
MPN: STM32U575ZIT6 β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $12.9 | $12.90 |
| 10 | $11.61 | $116.10 |
| 100 | $10.32 | $1,032.00 |
| 500 | $9.55 | $4,775.00 |
| 1,000 | $8.9 | $8,900.00 |
STM32U575ZIT6 Overview
A microcontroller (MCU) is a single integrated circuit that combines a processor core, memory, and peripherals into one chip, forming the lowest programmable layer of the embedded systems hierarchy (MCU -> embedded processor -> semiconductor device). The STM32U5 series extends the widely adopted STM32 family with ST's latest ultra-low-power process technology, targeting battery-powered and energy-harvesting designs that previously could not afford high compute performance.
Key features include the Cortex-M33 core with TrustZone security and FPU, 2 MB (2M x 8) on-chip Flash for large application images and OTA updates, 786 KB SRAM for buffering and DSP workloads, and an ultra-low-power architecture with multiple sleep modes for extended battery life.
Technically, the STM32U575xx integrates a rich peripheral set typical of the STM32 ecosystem, including multiple USART/LPUART, SPI, I2C, USB, ADC/DAC channels, timers, and ST's ART Accelerator-style memory optimizations. Per the manufacturer datasheet, the family achieves up to 240 DMIPS, placing it among the most capable ultra-low-power Cortex-M33 MCUs on the market.
Typical applications include battery-powered industrial sensors, smart metering, wearable and portable medical devices, and secure IoT edge nodes where TrustZone-based isolation is required. The 144-LQFP pin count supports designs needing abundant GPIO, parallel displays, and multiple communication buses simultaneously.
A key design consideration is power-mode configuration: to achieve datasheet-level consumption figures, engineers must correctly configure clock gating and low-power run modes via STM32CubeU5 firmware libraries rather than relying on default startup code.
This page synthesizes verified distributor data, same-family drop-in alternatives, and practical design guidance not consolidated in the manufacturer datasheet, helping engineers and buyers compare, source, and qualify the STM32U575ZIT6 faster.
Drop-in alternatives for STM32U575ZIT6 β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with STM32U575ZIT6 (same form factor and footprint) β differing in Core, Security.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
STM32U575ZIT6Q
β Drop-Inπ Reference alternative (not in catalog)
STM32U585ZIT6Q
β Drop-Inπ Reference alternative (not in catalog)
STM32U575ZJT6
β Drop-In β οΈ εζ°εΎ ιͺθ―π Reference alternative (not in catalog)
STM32U575ZGT6
β Drop-In β οΈ εζ°εΎ ιͺθ―π Reference alternative (not in catalog)
STM32U575VIT6
β Drop-Inπ Reference alternative (not in catalog)
STM32U575ZIT6 Maximum Ratings & Electrical Characteristics
| Core | Arm Cortex-M33 32-bit with TrustZone and FPU |
| Core Clock Frequency | 160 MHz |
| Performance | 240 DMIPS |
| Flash Memory | 2 MB (2M x 8) |
| SRAM | 786 KB |
| Data Bus Width | 32 bit |
| Series | STM32U5 |
| Security | Arm TrustZone |
| Package | 144-LQFP (20x20 mm) |
| Mounting Type | Surface Mount |
| Low Power | Ultra-low-power family (STM32U5) |
STM32U575ZIT6 144-lqfp (20x20 mm) Pin Configuration Guide
Pin configuration for STM32U575ZIT6 (144-lqfp (20x20 mm) package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for STM32U575ZIT6.
Refer to the datasheet for full pin configuration.
Typical Applications
STM32U575ZIT6 is suitable for 6 applications: Battery-Powered Industrial Sensors, Smart Metering, Wearable and Portable Medical Devices, Secure IoT Edge Nodes, Portable Audio and HMI Devices, Building Automation and Connected Home.
Battery-Powered Industrial Sensors
The STM32U575ZIT6 fits industrial wireless sensor nodes because its ultra-low-power STM32U5 architecture keeps sleep currents in the microamp range while the 160 MHz Cortex-M33 delivers 240 DMIPS for on-node signal processing such as FFT-based vibration analysis. The 786 KB SRAM buffers acquisition windows without external RAM. Typical topology: sensor front-end into the on-chip ADC, burst processing in low-power run mode, then radio transmission via SPI. Unlike higher-power Cortex-M4/M7 MCUs, the U575 achieves multi-year coin-cell or energy-harvesting operation, trading peak throughput (lower than an H7) for dramatically longer field life.
Recommended
Smart Metering
Smart electricity and water meters benefit directly from the STM32U575ZIT6's combination of 2 MB Flash and TrustZone security. The 2 MB Flash stores metrology firmware plus multiple secure OTA update images, while TrustZone isolates billing-critical key material and secure boot code from the application domain. The 144-pin LQFP provides enough GPIO for multiple communication interfaces simultaneously - UART for PLC modems, SPI for metering ASICs, and I2C for tamper switches. Because meters must run for 10+ years, the U5 series' ultra-low-power stop modes directly reduce battery and maintenance cost versus the previous STM32L4 generation.
Recommended
Wearable and Portable Medical Devices
For wearables, patches, and portable diagnostics, the STM32U575ZIT6 offers the rare combination of Cortex-M33 compute, hardware FPU for biosignal algorithms, and ultra-low-power modes that extend battery life in always-on monitoring. The 160 MHz core executes filtering and arrhythmia detection locally on the 786 KB SRAM, avoiding constant cloud streaming. TrustZone supports patient-data confidentiality expected in medical designs. In a typical signal chain, analog front ends connect through I2C/SPI while the USB peripheral handles docking and charging. The trade-off versus larger medical MCUs is lower peak throughput, but battery constraint usually dominates here.
Recommended
Secure IoT Edge Nodes
The STM32U575ZIT6 is well suited to secure IoT edge nodes because Arm TrustZone provides hardware-enforced separation of secure firmware, cryptographic keys, and the RTOS/application world - increasingly required by cloud provisioning standards. The 2 MB Flash accommodates TLS stacks and large application images with room for A/B OTA updates. Per the ST datasheet, the family delivers 240 DMIPS at 160 MHz, enough for local protocol handling (MQTT, BLE stacks) without a companion processor. Compared with the STM32L5, the U575 adds more memory and peripherals at similar power, making it the stronger choice for feature-rich secure nodes.
Recommended
Portable Audio and HMI Devices
Handheld devices with displays and audio benefit from the STM32U575ZIT6's abundant 144-pin GPIO count, which drives parallel RGB or serial displays via SPI/FMC while the hardware FPU accelerates audio DSP such as filtering and codecs. The 160 MHz Cortex-M33 with 786 KB SRAM supports graphical frameworks (TouchGFX-class UIs) with frame buffers in on-chip SRAM, avoiding external memory in many designs. Ultra-low-power stop modes keep the product responsive to touch wake events while preserving battery. Compared to an application processor, the U575 gives deterministic real-time behavior and instant-on at far lower quiescent power.
Recommended
Building Automation and Connected Home
Building automation controllers use the STM32U575ZIT6 to consolidate multiple buses - I2C sensors, SPI actuators, multiple UARTs for RS-485 gateways - on one 144-pin device, reducing BOM count versus smaller packages. The ultra-low-power profile matters for battery-powered thermostats, door locks, and occupancy sensors that must survive a season on batteries while running Zigbee/Thread-class stacks in the 2 MB Flash. TrustZone isolates commissioning credentials from user applications. Against the STM32F4 used in older designs, the U575 cuts sleep power by an order of magnitude while keeping familiar STM32 tooling and HAL compatibility.
Recommended
Recommended Products Summary
Engineering reference data for STM32U575ZIT6 β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | STM32U575ZIT6Q | STM32U585ZIT6Q | STM32U575ZJT6 | STM32U575VIT6 |
|---|---|---|---|---|---|
| Package | 144-LQFP (20x20 mm) | 144-LQFP (20x20) - same | 144-LQFP (20x20) - same | 144-LQFP (20x20) - same | 100-LQFP - different |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Core / Frequency | Cortex-M33 @ 160 MHz | Cortex-M33 @ 160 MHz | Cortex-M33 @ 160 MHz | Cortex-M33 @ 160 MHz | Cortex-M33 @ 160 MHz |
| Flash Memory | 2 MB | 2 MB | 2 MB | 2 MB | 2 MB |
| Security Features | TrustZone | TrustZone | TrustZone + enhanced crypto acceleration | TrustZone | TrustZone |
| Pin-to-Pin Compatible | Reference | Yes | Yes | Yes | No (100-pin) |
Key Differentiators
- Identical die in qualified packaging (vs STM32U575ZIT6Q)
- Balanced cost vs security (vs STM32U585ZIT6Q)
- More SRAM headroom option (vs STM32U575ZJT6)
Design Notes
To realize the STM32U5 series' ultra-low-power figures, do not rely on default startup code: use STM32CubeMX/CubeU5 to configure low-power run and stop modes, and explicitly gate clocks of unused peripherals. Estimated: with typical sleep currents in the low-microamp range versus milliamps in run mode at 160 MHz, duty-cycling (sleep 99% of the time) reduces average current by roughly two orders of magnitude - the dominant factor in battery-life calculations for sensor nodes.
Decouple each VDD/VDDA pin of the 144-LQFP with 100 nF ceramics placed within a few millimeters of the pin, plus bulk 4.7-10 uF near the package. Follow the datasheet power-supply recommendations for VCAP decoupling of the internal regulator and keep VDDA on a clean analog supply (ferrite or dedicated LDO) when using the ADC for precision measurements. The 20x20 mm LQFP has 0.5 mm pitch - use NSMD pads and inspect with AOI for production yield.
TrustZone is enabled out of the reset on STM32U5 for secure boot flows; if your application does not use TrustZone, configure the option bytes (TZEN) and provision a correct secure image, otherwise flash programming and debug access can appear blocked - a very common first-bring-up issue reported in ST community forums. Always provision SAU/GTZC regions in the linker scripts when mixing secure and non-secure code, and test the swap between U575 and U585 parts on the same board before qualifying both.
Compliance Information
Compliance data not present in the provided verified web data; verify on the ST product page (st.com) ECOPACK declaration before design-in.
