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STMicroelectronics STM32U585QII3

Name: STM32U585QII3
Brand: STMicroelectronics
SKU: STM32U585QII3
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: STM32U585QII3

Manufacturer:: STMicroelectronics

Category:: Microcontrollers

Package:: 132-UFBGA

Datasheet:: STM32U585QII3.pdf

Description:: IC MCU 32BIT 2MB FLASH 132UFBGA

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Product details

Overview

STM32U585QII3 from STMicroelectronics is an ultra-low-power Arm® Cortex®-M33 32-bit MCU with TrustZone® and FPU, delivering 240 DMIPS at up to 160 MHz. It integrates 2 MB Flash (with ECC), 786 KB SRAM (722 KB with ECC ON), and hardware crypto accelerators including dual AES coprocessors and PSA Level 3/SESIP3-certified security. It operates from 1.71 V to 3.6 V across –40 °C to +125 °C and targets secure, battery-powered industrial sensors and IoT edge nodes requiring autonomous low-power operation.

For engineers reviewing the STM32U585QII3 datasheet, STM32U585QII3 pinout, STM32U585QII3 application, or STM32U585QII3 equivalent, key selection criteria include its 19.5 µA/MHz Run mode @ 3.3 V, LPBAM-enabled peripheral autonomy in Stop 2, VBAT-backed RTC + 2-KB backup SRAM, and UFBGA132 (7 × 7 mm) package with 136 fast I/Os - all critical for energy-constrained, safety-certifiable embedded designs.

Technical Context

The STM32U585QII3 implements a dual-bank Flash architecture supporting read-while-write and 100 kcycle endurance on 512 KB, paired with ECC protection for both Flash and SRAM. Its FlexPowerControl system enables seven low-power modes - including 160 nA Shutdown and 530 nA Standby with RTC - managed via integrated LDO and SMPS with dynamic voltage scaling.

TrustZone® enforces hardware-isolated secure/non-secure worlds, with GTZC controlling memory, peripheral, and I/O security attribution. The device includes two Octo-SPI interfaces with on-the-fly decryption (OTFDEC), a public key accelerator (PKA), and dual AES engines - one DPA-resistant - enabling secure firmware installation (SFI) and over-the-air updates via TF-M.

Key Specifications

Parameter	Value and Actual Design Meaning
CPU Core	Arm Cortex-M33 with TrustZone®, FPU, MPU, and DSP extensions - enables secure real-time control with deterministic floating-point math.
Max Clock / Performance	160 MHz / 240 DMIPS - achieves zero-wait-state execution via 8-KB instruction cache (ART Accelerator).
Memory	2-MB Flash (ECC, dual-bank RWW), 786-KB SRAM (722 KB with ECC ON) - supports robust code storage and data integrity in harsh environments.
Low-Power Modes	160 nA Shutdown, 530 nA Standby w/RTC, 1.9 µA Stop 3 w/16-KB SRAM - enables multi-year battery life in sensor endpoints.
Crypto Acceleration	Dual AES (one DPA-resistant), PKA, HASH, RNG (NIST SP800-90B), OTFDEC - offloads TLS stack and secure boot without CPU overhead.
Security Certification	PSA Certified Level 3 & SESIP3 Assurance Target - meets requirements for certified secure firmware deployment in regulated markets.
Analog Peripherals	14-bit ADC @ 2.5 Msps (hardware oversampling), dual 12-bit DAC, 2 op-amps with PGA, 2 ultra-low-power comparators - supports high-fidelity sensor signal chain integration.
Package	UFBGA132 (7 × 7 mm, 0.5 mm pitch) - balances I/O count (136), board area, and thermal performance for compact industrial modules.

Pinout & Package

STM32U585QII3 is housed in a 132-ball UFBGA package (7 × 7 mm, 0.5 mm pitch) with 136 general-purpose I/Os - most 5V-tolerant, up to 14 with independent supply down to 1.08 V. Pin functions support full peripheral multiplexing including dual Octo-SPI, USB Type-C/UCPD, CAN FD, SDMMC, and parallel camera interface.

Pin/Terminal	Circuit Role	Design Meaning
VDD, VDDA, VDDIO2	Core, analog, and I/O power supplies	Independent domains allow mixed-voltage I/O (1.08–3.6 V) and noise-isolated ADC operation.
VSS, VSSA	Digital and analog ground returns	Separate analog/digital ground pins minimize coupling noise in precision measurement applications.
NRST	Active-low reset input	Asynchronous reset with internal pull-up; compatible with external reset supervisors and brown-out detection.
BOOT0	Boot mode selection	Configures boot source (system memory, main Flash, or SRAM); sampled at reset release.
PA0–PA15, PB0–PB15, etc.	General-purpose I/Os with alternate functions	Support up to 136 pins with interrupt capability, configurable pull-up/down, and multiple AF mappings per pin (e.g., USART, SPI, TIM, ADC).
PC13–PC15	RTC-related pins (LSE, RTC_OUT, TAMPER)	Enable hardware calendar, tamper detection, and 32-kHz timekeeping with VBAT backup supply.
VBAT	Battery backup supply	Directly powers RTC, 32 × 32-bit backup registers, and 2-KB backup SRAM during main power loss.

Key Features

Feature	Design Value
FlexPowerControl with LPBAM	Enables DMA-driven peripheral autonomy (e.g., ADC → memory → timer wakeup) down to Stop 2 mode - eliminates CPU wakeups for sensor polling.
TrustZone + GTZC	Hardware-enforced isolation of secure firmware, keys, and peripherals - required for PSA Level 3 certification and secure bootloader implementation.
Octo-SPI with OTFDEC	Decrypts external flash contents on-the-fly using AES-128/256 - enables secure code execution from external memory without exposing plaintext.
CORDIC + FMAC	Accelerates trigonometric (sin/cos/tan) and filter coefficient computation - reduces CPU load in motor control and digital power conversion algorithms.
Chrom-ART (DMA2D)	Offloads 2D graphic rendering (copy, fill, blend) from CPU - improves UI responsiveness in HMI applications with minimal RAM bandwidth impact.
Secure Firmware Installation (SFI)	Leverages embedded Root Secure Services (RSS) and Hardware Unique Key (HUK) to validate and install signed firmware images - prevents unauthorized code injection.

Applications

Industrial Sensor Node

Smart Metering Endpoint

Use Scenario: Battery-powered temperature/humidity/pressure sensor node transmitting encrypted telemetry via LoRaWAN or NB-IoT.

IC Role / Device Role / Timing Role: Main controller executing sensor fusion, crypto signing, and low-power scheduling; RTC provides precise timestamping for data logs.

Use Value: 160 nA Shutdown current and LPBAM-driven ADC+DMA sequence extend battery life beyond 10 years; PSA Level 3 certifies firmware integrity for utility-grade deployments.

Use Scenario: Electricity/water/gas meter with tamper detection, secure billing data storage, and remote firmware update capability.

IC Role / Device Role / Timing Role: Trusted execution environment hosting metrology algorithms, secure key management, and OTA update handler; tamper pins monitor enclosure breach.

Use Value: Dual AES + PKA + OTFDEC enable end-to-end encrypted data pipelines; SESIP3 certification satisfies regulatory audit requirements for revenue-grade meters.

Medical Wearable Monitor

Secure Gateway Controller

Use Scenario: ECG/PPG patch continuously monitoring vital signs and streaming anonymized data to cloud via BLE or cellular.

IC Role / Device Role / Timing Role: Real-time signal acquisition (14-bit ADC @ 2.5 Msps), on-chip filtering (MDF/ADF), and TLS 1.3 handshake acceleration for HIPAA-compliant transmission.

Use Value: 530 nA Standby with RTC preserves time context during sleep; NIST SP800-90B RNG ensures cryptographically strong session keys for patient data confidentiality.

Use Scenario: Edge gateway aggregating data from field devices (Modbus, CAN FD, RS-485) and forwarding to cloud with protocol translation and local policy enforcement.

IC Role / Device Role / Timing Role: Secure host processor managing isolated communication stacks, firewall rules, and trusted boot chain; CAN FD + dual Octo-SPI support legacy and modern field buses.

Use Value: UFBGA132 package accommodates 136 I/Os for multi-interface expansion; TrustZone isolates untrusted field protocols from secure cloud uplink logic.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STM32L562VEJ6	Same Cortex-M33 core, but only 512 KB Flash, 256 KB SRAM, no OTFDEC or UCPD; lower ULPMark-CP (340 vs 450).	Lacks CAN FD, USB Type-C/UCPD, and external memory decryption - unsuitable for secure gateways or USB PD applications.	Select when cost-sensitive, lower memory footprint suffices, and external flash encryption is not required.
NXP LPC55S69JBD100	Arm Cortex-M33 with TrustZone, 640 KB Flash, 320 KB SRAM, no OTFDEC; includes DSP-focused peripherals but weaker low-power spec (1.1 µA Stop vs 1.9 µA Stop 3).	Stronger audio processing (SAI, PDM), weaker crypto acceleration (no PKA, single AES); lacks PSA Level 3 certification.	Prefer for audio-centric edge AI inference where cryptographic assurance is secondary to DSP throughput.

Compared with STM32L562VEJ6 and LPC55S69JBD100, the STM32U585QII3 uniquely combines PSA Level 3 certification, OTFDEC, UCPD, CAN FD, and industry-leading 160 nA Shutdown current - making it the only choice for battery-powered, field-deployable devices requiring certified security and multi-protocol connectivity.

Availability

STM32U585QII3 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart metering endpoints, medical wearables, and secure gateway controllers requiring stable component supply across extended product lifecycles.

Supply support for STM32U585QII3 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 ICs, sensors, and automotive semiconductors since 1987.

The STM32U5 series targets ultra-low-power, security-critical embedded applications - combining Arm TrustZone, PSA-certified firmware services, and sub-µA power states to enable next-generation IoT and industrial edge devices.

FAQ

What is the maximum operating temperature range for STM32U585QII3?

The STM32U585QII3 is qualified for operation from –40 °C to +125 °C ambient temperature, meeting industrial and extended-temperature requirements. This rating applies across all low-power modes and full-speed operation at 160 MHz, verified per JEDEC JESD22-A104 and JESD22-A108 standards.

Does STM32U585QII3 support external memory interfaces beyond Octo-SPI?

Yes - in addition to two Octo-SPI interfaces, the STM32U585QII3 includes a Flexible Static Memory Controller (FSMC) supporting SRAM, PSRAM, NOR, NAND, and FRAM memories with up to 16-bit data bus width and programmable timing parameters for legacy parallel memory integration.

How does the Low-Power Background Autonomous Mode (LPBAM) reduce system power consumption?

LPBAM allows peripherals like ADC, timers, and DMA to operate autonomously in Stop 2 mode without CPU intervention - for example, triggering ADC conversions every 10 seconds, storing results in SRAM, and waking the CPU only upon buffer full or threshold event, cutting active-mode duty cycle by >95% in sensor polling use cases.

Is the UFBGA132 package of STM32U585QII3 compatible with standard reflow profiles?

Yes - the UFBGA132 (7 × 7 mm, 0.5 mm pitch) package complies with IPC/JEDEC J-STD-020 moisture sensitivity level 3 and supports standard lead-free reflow profiles (peak 260 °C, 60-second duration above 217 °C), with recommended stencil aperture ratio ≥0.66 for reliable solder paste transfer.

STM32U585QII3 Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Package/Case:: 132-UFBGA

Series:: STM32U5

Packaging:: Tray

Product Status:: Active

Programmable:: Not Verified

Core Processor:: ARM® Cortex®-M33

Core Size:: 32-Bit Single-Core

Speed:: 160MHz

Connectivity:: CANbus, I2C, IrDA, LINbus, MMC/SD/SDIO, SAI, SmartCard, SPDIF, SPI, UART/USART, USB, USB OTG

Peripherals:: Brown-out Detect/Reset, DMA, Motor Control PWM, POR, PWM, WDT

Number of I/O:: 106

Program Memory Size:: 2MB (2M x 8)

Program Memory Type:: FLASH

EEPROM Size:: -

RAM Size:: 784K x 8

Voltage - Supply (Vcc/Vdd):: 1.71V ~ 3.6V

Data Converters:: A/D 24x12b/14b SAR; D/A 2x12b

Oscillator Type:: External, Internal

Operating Temperature:: -40°C ~ 125°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:

STM32U585QII3 FAQ

1.How can I place an order for STM32U585QII3 through Aetrix?

Please submit a Request for Quotation (RFQ) for STM32U585QII3 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for STM32U585QII3 reliable?

The price and inventory of STM32U585QII3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32U585QII3 is usually 5 days.

3.What payment methods are accepted for STM32U585QII3?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32U585QII3 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for STM32U585QII3?

STM32U585QII3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your STM32U585QII3 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for STM32U585QII3?

For technical support, including STM32U585QII3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32U585QII3 requirements.

6.How does Aetrix verify that STM32U585QII3 is sourced from the original manufacturer or authorized distributors?

All STM32U585QII3 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that STM32U585QII3 meets industry standards.

7.What is the process for return or replacement of STM32U585QII3?

All STM32U585QII3 units undergo pre-shipment inspection (PSI). If there is an issue with STM32U585QII3, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The STM32U585QII3 part is unused and in its original packaging.

Return procedure for STM32U585QII3:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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