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STMicroelectronics STM32U585ZIT3Q
- Part No.:
- STM32U585ZIT3Q
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 144-LQFP
- Datasheet:
-
STM32U585ZIT3Q.pdf
- Description:
- IC MCU 32BIT 2MB FLASH 144LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,457
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Product details
Overview
STM32U585ZIT3Q 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 certification. Designed for battery-powered IoT edge nodes requiring secure, long-life operation - such as smart meters and wearable health monitors.
For engineers reviewing the STM32U585ZIT3Q datasheet, STM32U585ZIT3Q pinout, STM32U585ZIT3Q application, or STM32U585ZIT3Q equivalent, key selection criteria include its 160 nA Shutdown mode, LPBAM autonomous peripheral operation in Stop 2, VBAT-secured RTC + 2-KB backup SRAM, and Octo-SPI on-the-fly decryption support for external code storage.
Technical Context
The STM32U585ZIT3Q implements a dual-cache ART Accelerator (8 KB I-Cache + 4 KB D-Cache) enabling zero-wait-state execution from Flash and external memories. Its power architecture combines embedded LDO and SMPS step-down converter with dynamic voltage scaling and switch-on-the-fly capability.
TrustZone® enforces hardware-isolated secure/non-secure worlds across memory (Flash/SRAM), peripherals (I/Os, timers, ADCs), and boot flow - anchored by unique boot entry, HDP, and Secure Firmware Installation (SFI) via embedded Root Secure Services (RSS). The device supports PSA Certified Level 3 assurance with active tamper detection and NIST SP800-90B-compliant TRNG.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M33 with TrustZone, FPU, MPU, DSP extensions - enables secure real-time control with cryptographic isolation. |
| Max Clock / Performance | 160 MHz / 240 DMIPS - supports high-throughput sensor fusion and audio preprocessing without external co-processors. |
| Memory | 2 MB Flash (ECC, RWW), 722 KB SRAM with ECC ON - ensures data integrity in safety-critical firmware and logging. |
| Low-Power Modes | 160 nA Shutdown, 530 nA Standby+RTC - extends 10-year battery life in metering and environmental sensors. |
| Crypto Acceleration | Dual AES (one DPA-resistant), PKA, HASH, OTFDEC, TRNG - offloads TLS 1.3 handshake and encrypted OTA updates. |
| Analog Peripherals | 14-bit 2.5-Msps ADC, dual 12-bit DAC, 2 OPAMPs with PGA, 2 ultra-low-power comparators - enables precision analog front-end for biometric sensing. |
| Connectivity | 1 CAN FD, 6 USART, 4 I²C, 2 SAI, USB OTG FS, UCPD, SDMMC - supports multi-protocol industrial gateways and USB-C PD sink applications. |
Pinout & Package
STM32U585ZIT3Q uses the LQFP144 (20 × 20 mm) package with 136 fast I/Os - most 5V-tolerant, up to 14 with independent supply down to 1.08 V. Pin functions include dedicated TrustZone-secured I/Os, multiple low-power wake-up inputs, and hardware-peripheral multiplexing (e.g., OCTOSPI, SAI, DCMI).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Main power supply and ground | Supports 1.71–3.6 V operation; decoupling required per datasheet layout guidelines for SMPS/LDO stability. |
| VBAT | Backup domain supply | Directly powers RTC, 32×32-bit backup registers, and 2-KB backup SRAM during main power loss. |
| NRST | Active-low reset input | Asynchronous reset with internal pull-up; compatible with external reset supervisors and push-button recovery. |
| PA0–PA15, PB0–PB15, etc. | General-purpose I/Os | Up to 136 pins with interrupt capability; configurable as securable TrustZone I/Os or LP-GPIOs active in Stop modes. |
| PC13–PC15 | RTC oscillator inputs | Supports 32.768 kHz crystal (LSE); essential for calendar RTC and low-power wake-up timing. |
| PF0–PF13 | OCTOSPI interface | Enables high-speed x8 SPI NOR/PSRAM/F-RAM expansion with on-the-fly decryption (OTFDEC). |
Key Features
| Feature | Design Value |
|---|---|
| LPBAM (Low-Power Background Autonomous Mode) | Enables DMA-driven peripheral chains (ADC→DMA→AES→SRAM) without CPU wake-up - reduces active time in Stop 2 mode. |
| FlexPowerControl with SMPS+LDO | Dynamic switching between SMPS (high efficiency) and LDO (low noise) based on operating mode - optimizes power vs. EMI trade-off. |
| Secure Boot & Life Cycle Management | RDP levels + password-protected debug + HDP-locked secure hide area - prevents firmware extraction and unauthorized debug access. |
| Chrom-ART Accelerator (DMA2D) | Hardware-accelerated 2D graphics rendering (ARGB8888, RGB565) - enables responsive GUI on segment LCD or parallel RGB displays. |
| CORDIC + FMAC Coprocessors | Accelerates trigonometric (sin/cos/tan) and filter coefficient computation - cuts motor control loop latency by >60% vs. software-only. |
Applications
| Smart Utility Metering | Wearable Health Monitor |
|---|---|
Use Scenario: Battery-operated gas/water/electricity meter with metrology, RF mesh comms, and tamper detection. IC Role / Device Role / Timing Role: Main controller executing secure firmware, managing metrology ADC sampling, RTC-based billing cycles, and encrypted LoRaWAN transmission. Use Value: 160 nA Shutdown and 530 nA Standby+RTC enable >15-year battery life; PSA Level 3 cert satisfies utility cybersecurity mandates. | Use Scenario: Clinical-grade wearable measuring ECG, SpO₂, and motion using dry electrodes and Bluetooth LE. IC Role / Device Role / Timing Role: Sensor hub aggregating analog front-end data, running real-time filtering (FMAC), and managing secure BLE pairing via UCPD/USB-C. Use Value: Dual 14-bit/12-bit ADCs with hardware oversampling achieve <1 µV RMS noise; TrustZone isolates PII data from app firmware. |
| Industrial Edge Gateway | Secure USB-C Power Delivery Sink |
Use Scenario: DIN-rail gateway connecting Modbus RTU field devices to cloud via cellular/Wi-Fi with local edge AI inference. IC Role / Device Role / Timing Role: Central host managing CAN FD, RS-485 UARTs, SDMMC logging, and TLS-secured MQTT over cellular modem. Use Value: 2 MB Flash stores dual firmware images; OTFDEC decrypts encrypted firmware partitions from Octo-SPI NOR flash. | Use Scenario: Smart dock or monitor with USB-C PD sink supporting 60 W delivery, display alt-mode, and firmware update via UCPD. IC Role / Device Role / Timing Role: UCPD controller handling PD negotiation, VCONN switching, and Type-C cable ID authentication with secure key storage. Use Value: Dedicated UCPD peripheral with hardware PD protocol engine eliminates need for external PD controller; HUK enables per-device certificate binding. |
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 |
|---|---|---|---|
| STM32L562ZEJ6Q | Same Cortex-M33 core, but only 512 KB Flash, no OTFDEC, no UCPD, lower crypto acceleration (single AES). | Suitable for cost-sensitive secure nodes without external encrypted memory or USB-C PD. | Select when full 2 MB Flash, Octo-SPI decryption, or UCPD are not required - reduces BOM cost and footprint. |
| NXP LPC55S69JBD100 | Arm Cortex-M33 with TrustZone, 640 KB Flash, 320 KB SRAM, no SMPS, lower ULPMark-CP (340 vs. 450). | Better suited for audio-centric applications with dual DSP cores, but lacks LPBAM and VBAT-secured backup SRAM. | Prefer for voice/AI edge use cases needing integrated DSP; avoid where sub-µA standby or RTC-backed data retention is mandatory. |
Compared with STM32L562ZEJ6Q and LPC55S69JBD100, the STM32U585ZIT3Q uniquely combines PSA Level 3 certification, 2 MB Flash with RWW, LPBAM autonomy, and UCPD - making it the only choice for secure, long-life, multi-interface industrial edge nodes requiring field-upgradable encrypted firmware.
Availability
STM32U585ZIT3Q is available at Aetrix Electronics and suitable for smart metering, wearable medical devices, industrial gateways, and USB-C PD sink applications requiring stable component supply across multi-year production cycles.
Supply support for STM32U585ZIT3Q 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 chips since 1987.
The STM32U5 series targets ultra-low-power, security-critical edge applications - combining energy efficiency (ULPMark-CP = 450), PSA-certified trust architecture, and rich analog/digital integration for next-generation IoT endpoints.
FAQ
What is the maximum operating temperature range for STM32U585ZIT3Q?
The STM32U585ZIT3Q is rated for –40 °C to +125 °C ambient operation, validated per JEDEC JESD22-A108. This extended range supports deployment in automotive under-hood modules, industrial PLCs, and outdoor utility infrastructure without derating.
Does STM32U585ZIT3Q support external memory interfaces beyond Octo-SPI?
Yes - it integrates a Flexible Static Memory Controller (FSMC) supporting SRAM, PSRAM, NOR, NAND, and FRAM with 8-/16-bit data bus and asynchronous/synchronous timing. This complements Octo-SPI for legacy parallel memory designs or high-bandwidth frame buffers.
How does the LPBAM feature reduce system power consumption?
LPBAM enables autonomous peripheral chaining (e.g., ADC → DMA → AES → SRAM) without CPU intervention, allowing the Cortex-M33 core to remain in Stop 2 mode. This eliminates wake-up latency and CPU leakage, cutting average current by up to 70% in sensor logging applications.
Is the 2 MB Flash memory organized in dual banks with read-while-write capability?
Yes - the 2 MB Flash is split into two independent banks, each supporting simultaneous read and write operations. This enables seamless firmware updates via atomic bank swap, critical for fail-safe OTA deployments in remote or safety-critical systems.
STM32U585ZIT3Q Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 144-LQFP
- Series:
- STM32U5
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- ARM® Cortex®-M33
- Core Size:
- 32-Bit
- 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, LCD, Motor Control PWM, POR, PWM, WDT
- Number of I/O:
- 111
- 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 22x12/14b SAR; D/A 2x12b
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32U585ZIT3Q FAQ
1.How can I place an order for STM32U585ZIT3Q through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32U585ZIT3Q 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 STM32U585ZIT3Q reliable?
The price and inventory of STM32U585ZIT3Q are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32U585ZIT3Q is usually 5 days.
3.What payment methods are accepted for STM32U585ZIT3Q?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32U585ZIT3Q transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32U585ZIT3Q?
STM32U585ZIT3Q orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32U585ZIT3Q 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 STM32U585ZIT3Q?
For technical support, including STM32U585ZIT3Q datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32U585ZIT3Q requirements.
6.How does Aetrix verify that STM32U585ZIT3Q is sourced from the original manufacturer or authorized distributors?
All STM32U585ZIT3Q 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 STM32U585ZIT3Q meets industry standards.
7.What is the process for return or replacement of STM32U585ZIT3Q?
All STM32U585ZIT3Q units undergo pre-shipment inspection (PSI). If there is an issue with STM32U585ZIT3Q, 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 STM32U585ZIT3Q part is unused and in its original packaging.
Return procedure for STM32U585ZIT3Q:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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