STMicroelectronics

STM32U585ZIT6 - 160MHz Cortex-M33, 2MB Flash MCU | ST

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144-LQFP (20x20 mm) Package 160 MHz Speed 2 MB (2M x 8) Memory
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STM32U585ZIT6 Descripción general

The STMicroelectronics STM32U585ZIT6 is an ultra-low-power 32-bit microcontroller based on the Arm Cortex-M33 core running at 160 MHz, with 2 MB of Flash memory and 786 KB of SRAM, housed in a 144-pin LQFP (20x20 mm) package.

An MCU (microcontroller unit) is a single integrated circuit that combines a processor core, memory, and peripherals into one chip, sitting at the center of the embedded-system hierarchy: microcontroller -> embedded processor -> semiconductor device. The STM32U5 series belongs to ST's ultra-low-power STM32 family, and the STM32U585 line extends the STM32U575 with an integrated hardware cryptographic accelerator, making it a power-management IC plus security hub for battery-powered designs.

Key features include Arm TrustZone hardware isolation, an FPU (floating-point unit) for single-precision math, 240 DMIPS of processing performance, and a rich peripheral set typical of the STM32U5 family, including multiple low-power modes for extended battery life in portable products.

Architecturally, the Cortex-M33 core implements the Armv8-M mainline profile, allowing secure and non-secure code domains to coexist. The hardware crypto block offloads AES and hashing operations from software, preserving CPU cycles while meeting common security requirements for connected devices.

Typical applications include battery-powered wearables and medical sensors, smart-metering and building-automation nodes, and IoT edge devices that require both long battery life and secure firmware and data handling.

When designing with this device, plan power-mode transitions early: the ultra-low-power value is realized only when firmware aggressively uses stop and standby modes with the right peripheral wakeup sources.

This page synthesizes distributor availability data, drop-in family alternatives, and practical design notes not consolidated in the manufacturer datasheet, with pricing and stock references as of 2026-09-06.

Alternativas directas para STM32U585ZIT6 — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.

Variantes de esta serie

Modelos de la misma serie compatibles directamente con STM32U585ZIT6 (mismo factor de forma y huella) — difiere en Core, Security.

STMicroelectronics
Core: Arm Cortex-M33 32-bit with TrustZone and FPU
Security: Arm TrustZone
Comparar con STM32U585ZIT6 →

Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:

STM32U575ZIT6

✅ Sustitución directa ⚠️ Especificaciones sin verificar
STMicroelectronics
📦 LQFP-144
Arm Cortex-M33 32-bit with TrustZone and FPU · 160 MHz · 240 DMIPS · 2 MB (2M x 8) · 786 KB · 32 bit · STM32U5 · Arm TrustZone

✓ En stock

$8.9 / unidad

Ver hoja de datos →

STM32U575ZIT6Q

✅ Sustitución directa ⚠️ Especificaciones sin verificar
📦 LQFP-144
Q corrected revision of U575, no hardware crypto; otherwise pin-to-pin identical footprint

📋 Alternativa de referencia (no en el catálogo)

STM32U585ZIT6Q

✅ Sustitución directa ⚠️ Especificaciones sin verificar
📦 LQFP-144
corrected-revision (Q) of the same die with hardware crypto; identical specs and pinout

📋 Alternativa de referencia (no en el catálogo)

STM32U5A5ZJT6Q

✅ Sustitución directa ⚠️ Especificaciones sin verificar
📦 LQFP-144
U5A5 ultra-low-power line variant in same LQFP-144 footprint; minor peripheral/line differences vs U585

📋 Alternativa de referencia (no en el catálogo)

STM32U585ZIT6 Valores máximos y características eléctricas

Core Arm 32-bit Cortex-M33 with FPU and TrustZone
Max CPU Frequency 160 MHz
Flash Memory 2 MB (2M x 8)
SRAM 786 KB
Performance 240 DMIPS
Temperatura de funcionamiento -40C to +85C
Encapsulado 144-LQFP (20x20 mm)
Tipo de montaje Surface Mount
Security Arm TrustZone, hardware cryptographic accelerator
Power Class Ultra-low-power (STM32U5 series)
Series STM32U5
Packaging Variant Code T6 = tape and reel, -40C to +85C temperature range

Guía de configuración de pines de STM32U585ZIT6 144-lqfp (20x20 mm)

Configuración de pines para STM32U585ZIT6 (encapsulado 144-lqfp (20x20 mm)). Este CI digital incluye GPIO, interfaces de comunicación (UART, SPI, I2C) y pines de alimentación. Consulte la hoja de datos del fabricante para conocer las funciones alternativas de los pines y las opciones de configuración. Esencial para el diseño de sistemas embebidos y el diseño de PCB.

Diagrama de patillaje del encapsulado 144-lqfp (20x20 mm) para STM32U585ZIT6

No hay datos detallados de patillaje disponibles para STM32U585ZIT6.

Consulte la hoja de datos para ver la configuración completa de patillas.

Aplicaciones típicas

STM32U585ZIT6 es adecuado para 6 aplicacións: Battery-Powered Wearables and Health Monitors, IoT Edge Devices with Secure Connectivity, Smart Metering and Building Automation, Portable Medical and Diagnostic Instruments, Industrial Sensors and Condition Monitoring, Consumer Appliances and HMI Panels.

📱

Battery-Powered Wearables and Health Monitors

The STM32U585ZIT6 fits wearables because its ultra-low-power STM32U5 architecture with 786 KB SRAM sustains sensor fusion and BLE-class stacks while multiple low-power modes stretch battery budgets. The 160 MHz Cortex-M33 with FPU executes FFT and filtering workloads quickly, allowing the MCU to return to stop modes sooner, which directly reduces average current. The hardware crypto accelerator secures health data without heavy software overhead. Used as the main controller between analog-front-end sensors and a Bluetooth LE radio, the part trades compute performance against duty-cycled sleep, a key advantage over higher-power general-purpose MCUs.

🧩

IoT Edge Devices with Secure Connectivity

For IoT edge nodes, the STM32U585ZIT6 combines TrustZone isolation, a hardware cryptographic accelerator, and 2 MB Flash - enough to hold a full TLS stack, application code, and an OTA bootloader simultaneously. The 160 MHz Cortex-M33 (240 DMIPS) processes sensor data locally before transmission, reducing cloud bandwidth. In a typical topology, the MCU drives the radio over SPI or UART and manages power by sleeping between reporting intervals. The benefit over non-crypto MCUs is offloaded AES/hashing that cuts both latency and energy per secure session, which matters for battery-powered meters and trackers.

⚡

Smart Metering and Building Automation

Smart meters and building-automation controllers benefit from the STM32U585ZIT6's combination of 2 MB Flash for dual-bank firmware updates, 786 KB SRAM for protocol buffers, and ultra-low-power modes for battery or energy-harvesting nodes. The crypto accelerator authenticates metering data and protects firmware images in the field, addressing utility-grade security requirements. Deployed as the metering engine, it samples metrology front-ends, computes consumption, and periodically reports over PLC or RF. The dual-bank Flash architecture enables live firmware updates without bricking deployed units - a concrete reliability advantage over single-bank parts.

💊

Portable Medical and Diagnostic Instruments

Handheld medical devices need long battery life, compute for DSP algorithms, and data security - all three map directly onto STM32U585ZIT6 strengths: ultra-low-power STM32U5 design, 160 MHz Cortex-M33 with FPU, and TrustZone plus hardware crypto. The 786 KB SRAM buffers waveform data from analog front-ends for on-device analysis. In a typical instrument, the MCU sequences the AFE, applies filtering (e.g., for ECG/SpO2 signals), renders results, and encrypts patient data at rest. The measurable benefit is longer run-time per charge versus non-low-power MCUs at equivalent processing throughput.

🏭

Industrial Sensors and Condition Monitoring

Industrial condition-monitoring nodes use the STM32U585ZIT6 to sample vibration, current, and temperature sensors, perform FFT-based analysis locally with the FPU-equipped 160 MHz core, and report anomalies over industrial networks. The 2 MB Flash stores feature-extraction models and logging history, while the crypto block secures machine data streams. Operating from -40C to +85C (T6 grade), the part tolerates cabinet and rooftop environments without derating. Its ultra-low-power modes allow battery-backup operation during mains loss, and local analytics reduce network traffic versus raw-stream telemetry designs.

📺

Consumer Appliances and HMI Panels

Appliance control boards and small HMI panels leverage the STM32U585ZIT6's 786 KB SRAM to hold display frame buffers while the 160 MHz Cortex-M33 drives touch sensing and UI logic. ST's STM32U5 family includes a Chrom-ART-class graphical acceleration heritage within the series ecosystem, letting the MCU manage segmented or small TFT displays without a dedicated graphics chip. Crypto support authenticates firmware and cloud connections in connected appliances. The trade-off versus application-processor-based HMIs is display size, but power consumption and BOM cost drop substantially for simple UIs.

Resumen de productos recomendados

STM32U575ZIT6 STMicroelectronics Se usa en: Battery-Powered Wearables and Health Monitors, Smart Metering and Building Automation, Portable Medical and Diagnostic Instruments, Industrial Sensors and Condition Monitoring, Consumer Appliances and HMI Panels STNS22 [DATA_NEEDED: companion verification] Se usa en: Battery-Powered Wearables and Health Monitors STM32U585ZIT6Q Corrected-revision drop-in of the same device Se usa en: IoT Edge Devices with Secure Connectivity SPSGRF-915 Sub-GHz radio module companion for long-range links Se usa en: IoT Edge Devices with Secure Connectivity STTS751 STMicroelectronics Se usa en: Smart Metering and Building Automation STM32H743ZIT6 STMicroelectronics Se usa en: Portable Medical and Diagnostic Instruments IIS2DLPC Ultra-low-power accelerometer companion for vibration sensing Se usa en: Industrial Sensors and Condition Monitoring STMPE811 Resistive touch controller companion Se usa en: Consumer Appliances and HMI Panels
What is the STM32U585ZIT6 microcontroller?
The STM32U585ZIT6 is an STMicroelectronics ultra-low-power microcontroller based on the Arm Cortex-M33 32-bit RISC core with FPU and TrustZone, running at up to 160 MHz. It integrates 2 MB of Flash memory and 786 KB of SRAM in a 144-pin LQFP (20x20 mm) package, and delivers up to 240 DMIPS. According to the ST STM32U585xx datasheet, the family also includes a hardware cryptographic accelerator for secure connected applications.
How much Flash and SRAM does the STM32U585ZIT6 have?
The STM32U585ZIT6 has 2 MB (2M x 8) of on-chip Flash memory and 786 KB of SRAM. This is confirmed by both the DigiKey product listing (2MB FLASH 144-LQFP) and the ST datasheet headline (up to 2 MB Flash, 786 KB SRAM). The large SRAM makes it suitable for graphics buffers, DSP workloads, and protocol stacks in ultra-low-power IoT designs.
What is the difference between STM32U585 and STM32U575?
The STM32U585 adds a hardware cryptographic accelerator on top of the STM32U575 feature set; core, memory map, and peripherals are otherwise in the same family. Both are Cortex-M33 parts at 160 MHz with roughly 2 MB Flash and ~786 KB SRAM in shared packages including LQFP-144. According to ST product pages, if your design does not need hardware crypto, the STM32U575ZIT6 is a lower-cost pin-compatible option in the same footprint.
What package does the STM32U585ZIT6 come in?
The STM32U585ZIT6 is supplied in a 144-lead LQFP package measuring 20x20 mm, surface-mount, with a 0.5 mm lead pitch typical of the LQFP-144 family. DigiKey lists it explicitly as 144-LQFP (20x20). Pin-compatible siblings in other memory grades of the same family (STM32U575/STM32U5A5 in LQFP-144) can drop onto the same PCB footprint.
Where can I download the STM32U585ZIT6 datasheet PDF?
The official STM32U585ZIT6 datasheet PDF is available directly from STMicroelectronics at st.com/resource/en/datasheet/stm32u585zi.pdf. This document covers electrical characteristics, pinout diagrams, memory maps, and peripheral descriptions for the STM32U585xx family. The ST product page (st.com/en/microcontrollers-microprocessors/stm32u585zi.html) also links reference manuals, application notes, and the STM32CubeU5 software ecosystem.
What is the best drop-in replacement for STM32U585ZIT6?
The best drop-in replacement is the STM32U575ZIT6, which shares the same LQFP-144 footprint and Cortex-M33 core at 160 MHz with 2 MB Flash; the key trade-off is that it lacks the STM32U585 hardware crypto accelerator. For designs not using the crypto block, firmware portability is essentially direct within the STM32U5 series. The STM32U585ZIT6Q (corrected revision) is another same-footprint option when crypto is required.
Is the STM32U585ZIT6 suitable for battery-powered wearable devices?
Yes, the STM32U585ZIT6 is well suited to battery-powered wearables. The STM32U5 series is explicitly positioned by ST as an ultra-low-power MCU family, and the Cortex-M33 with FPU provides the compute headroom for sensor fusion while multiple low-power modes extend battery life. The 786 KB SRAM comfortably holds sensor buffers and BLE protocol stacks, and TrustZone plus the crypto accelerator protect health-data workloads.
What are the key specifications of STM32U585ZIT6 engineers should know?
The STM32U585ZIT6 is a 32-bit Arm Cortex-M33 MCU (Armv8-M with TrustZone and FPU) at up to 160 MHz, delivering 240 DMIPS, with 2 MB Flash and 786 KB SRAM, in a 144-pin LQFP 20x20 mm package rated -40C to +85C (the T6 suffix). It belongs to the ultra-low-power STM32U5 series and includes a hardware cryptographic accelerator. Source: ST STM32U585xx datasheet and DigiKey product page.
What is the price of STM32U585ZIT6 and where can I buy it online?
STM32U585ZIT6 can be purchased from authorized distributors including DigiKey, Mouser, and the official ST online store (estore.st.com), as well as XAIPART. Live quantity-based pricing was not embedded in the verified data snapshot for this page; check the distributor listings for current unit pricing at your quantity break, with stock and shipping status as of 2026-09-06. DigiKey listed the part as shipping the same day at the time of verification.
Is STM32U585ZIT6 in stock and what is the lead time?
At the time of data verification (2026-09-06), DigiKey listed the STM32U585ZIT6 with buy-now, ships-today availability, indicating authorized stock on hand. Mouser also carries the part. Lead times can change with demand cycles on STMicroelectronics parts, so confirm current stock and any backorder status on the distributor page before committing to a production schedule.
STM32U585ZIT6 vs STM32U575ZIT6 - which is better for my application?
Choose the STM32U585ZIT6 if your product requires hardware cryptographic acceleration, for example TLS offload, secure firmware updates, or data encryption at rest; the crypto block preserves CPU cycles and lowers power versus software AES. Choose the STM32U575ZIT6 when hardware crypto is unnecessary and cost matters most - it is pin-compatible in LQFP-144 with the same 160 MHz Cortex-M33 and 2 MB Flash, so migration between them later is straightforward.
What is the best cross-brand equivalent for STM32U585ZIT6?
There is no verified pin-to-pin cross-brand drop-in equivalent for the STM32U585ZIT6 in the reference data reviewed. Cortex-M33 MCUs from NXP, Renesas, or GigaDevice may match parameters like 160 MHz clock and 2 MB Flash, but pinouts in LQFP-144 differ between vendors, so a cross-brand swap requires PCB redesign. Within ST, same-footprint STM32U5 family members (U575/U5A5 in LQFP-144) are the practical replacements.
Can the STM32U585ZIT6 run firmware written for the STM32U575?
Yes, firmware written for the STM32U575ZIT6 generally runs on the STM32U585ZIT6 because both belong to the STM32U5 series with the same Cortex-M33 core, memory map, and peripheral set. The reverse migration (U585 code to U575) needs review only if it uses the hardware crypto accelerator, which the U575 lacks. ST's STM32CubeU5 ecosystem supports both parts with a common HAL, reducing porting effort.
What tools and ecosystem support the STM32U585ZIT6?
The STM32U585ZIT6 is supported by ST's STM32Cube ecosystem, including STM32CubeU5 firmware packages, STM32CubeIDE (free Eclipse-based IDE), STM32CubeMX configuration tool, and STM32CubeProgrammer. According to ST, STM32Cube is designed to reduce development effort, time, and cost across the STM32 portfolio. Standard SWD debug via ST-LINK probes applies, and TrustZone development is supported through the HAL and Arm toolchains.
Is STM32U585ZIT6 RoHS compliant and lead-free?
RoHS compliance was not explicitly stated in the verified data snapshot for this page, so it cannot be asserted here with certainty. However, STM32 parts in LQFP packages are standard commercial products sourced through authorized distributors like DigiKey and Mouser, which list RoHS and REACH status on each product page - confirm on the DigiKey listing (497-STM32U585ZIT6-ND) or the ST product page before export-controlled or regulated production use.
What security features does the STM32U585ZIT6 provide?
The STM32U585ZIT6 provides Arm TrustZone hardware isolation, partitioning memory and peripherals into secure and non-secure domains under the Cortex-M33 Armv8-M mainline architecture, plus a hardware cryptographic accelerator. According to the ST datasheet headline, the device is described as an 'MCU+TrustZone+FPU... crypto' part. This combination supports secure boot, encrypted communication, and key storage workflows needed for IoT devices handling sensitive data.

Datos de referencia de ingeniería para STM32U585ZIT6 — comparación, orientación de diseño e información de cumplimiento.

Guía de selección

Choose the STM32U585ZIT6 when your design needs secure connectivity with hardware crypto: TLS offload, encrypted storage, or secure OTA updates in battery-powered IoT, metering, or medical products. Choose the STM32U575ZIT6 when those security workloads are absent or handled by an external secure element - it is pin-compatible in LQFP-144 and typically less costly. For new production starts, prefer the STM32U585ZIT6Q corrected revision to avoid early-silicon errata exposure. The STM32U5A5ZJT6Q suits extended-temperature (-40C to +105C) industrial builds within the same footprint. All these STM32U5 LQFP-144 parts share the STM32CubeU5 ecosystem, so firmware investment is portable across the family - pick by crypto need, temperature range, and price rather than by architecture.

Comparación con alternativas

Parámetro Este producto STM32U575ZIT6 STM32U575ZIT6Q STM32U585ZIT6Q STM32U5A5ZJT6Q
Package LQFP-144 (20x20 mm) LQFP-144 - same LQFP-144 - same LQFP-144 - same LQFP-144 - same
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
TrustZone Yes Yes Yes Yes Yes
Operating Temperature -40C to +85C -40C to +85C -40C to +85C -40C to +85C -40C to +105C

Diferenciadores clave

  • Integrated hardware cryptographic accelerator (frente a STM32U575ZIT6)
  • Corrected silicon revision available (frente a STM32U585ZIT6Q)
  • Ultra-low-power positioning with full performance (frente a STM32U575ZIT6)

Notas de diseño

Ultra-low-power performance depends on firmware discipline, not silicon alone. Budget average current by measuring duty cycle: with the 160 MHz core active at full speed versus stop-mode currents from the datasheet, a 1% active duty cycle can reduce average consumption by two orders of magnitude versus always-on operation. Use STM32CubeMX low-power calculator to model modes (Sleep, Stop, Standby) and pick wakeup sources (RTC, LPTIM, EXTI) before finalizing the power tree. Verify VDD domain assignment of each peripheral so unused domains are gated in Stop mode.

For the 144-LQFP (20x20 mm, 0.5 mm pitch), keep the VDD/VSS pairs each decoupled with 100 nF ceramics placed within 2 mm of the pins, plus bulk 4.7-10 uF near the regulator output. Use a solid ground plane on layer 2 and connect the exposed thermal/electrical pad pattern per the datasheet land pattern. Route the SWD (SWDIO/SWCLK) header to a 4-pin tag-connect footprint for production programming. Estimated: a 0.5 mm pitch fan-out with 0.2/0.2 mm trace/clearance is comfortable for standard 4/4 mil fab rules.

Silicon-revision sensitivity: the STM32U585 has a Q corrected revision (STM32U585ZIT6Q); always download the latest ST errata sheet and match your sourcing to the intended revision to avoid requalification surprises. Second, TrustZone splits the memory map - code developed without TZ enabled may fail to access peripherals after enabling secure attribution; plan the secure/non-secure partition in STM32CubeMX early. Third, when migrating from STM32U575 to U585 mid-project, code using the crypto accelerator must be feature-flagged.

Información de cumplimiento

RoHS
Unknown
REACH
Unknown
AEC-Q100
Not Applicable
Libre de plomo
Unknown
Libre de halógenos
Unknown
Minerales en conflicto
Unknown

RoHS/REACH/lead-free status was not explicitly stated in the provided verified data; confirm on the DigiKey listing (497-STM32U585ZIT6-ND) or ST product page.

Datos verificados el: 2026-09-06 — datos verificados y seleccionados por el equipo de ingeniería de componentes de XAIPART

Búsquedas relacionadas

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Componentes & términos relacionados

STMicroelectronics STM32U585ZIT6 STM32U575ZIT6 STM32U585ZIT6Q STM32U5A5ZJT6Q STM32U5 series Arm Cortex-M33 TrustZone FPU microcontroller ultra-low-power MCU LQFP-144 QFP package family surface mount 240 DMIPS 2 MB Flash 786 KB SRAM RoHS STM32Cube IoT edge devices smart metering wearables hardware cryptographic accelerator
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