STM32U585ZIT6 - 160MHz Cortex-M33, 2MB Flash MCU | ST
MPN: STM32U585ZIT6 β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
STM32U585ZIT6 Overview
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.
Drop-in alternatives for STM32U585ZIT6 β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
STM32U575ZIT6
β Drop-In β οΈ εζ°εΎ ιͺθ―β In Stock
$8.9 / Unit
View Datasheet βSTM32U575ZIT6Q
β Drop-In β οΈ εζ°εΎ ιͺθ―π Reference alternative (not in catalog)
STM32U585ZIT6Q
β Drop-In β οΈ εζ°εΎ ιͺθ―π Reference alternative (not in catalog)
STM32U5A5ZJT6Q
β Drop-In β οΈ εζ°εΎ ιͺθ―π Reference alternative (not in catalog)
STM32U585ZIT6 Maximum Ratings & Electrical Characteristics
| 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 |
| Operating Temperature | -40C to +85C |
| Package | 144-LQFP (20x20 mm) |
| Mounting Type | 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 |
STM32U585ZIT6 144-lqfp (20x20 mm) Pin Configuration Guide
Pin configuration for STM32U585ZIT6 (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 STM32U585ZIT6.
Refer to the datasheet for full pin configuration.
Typical Applications
STM32U585ZIT6 is suitable for 6 applications: 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.
Recommended
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.
Recommended
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.
Recommended
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.
Recommended
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.
Recommended
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.
Recommended
Recommended Products Summary
Engineering reference data for STM32U585ZIT6 β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | 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 |
Key Differentiators
- Integrated hardware cryptographic accelerator (vs STM32U575ZIT6)
- Corrected silicon revision available (vs STM32U585ZIT6Q)
- Ultra-low-power positioning with full performance (vs STM32U575ZIT6)
Design Notes
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.
Compliance Information
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.
