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STMicroelectronics STM32U5A5ZIT6
- Part No.:
- STM32U5A5ZIT6
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- -
- Datasheet:
-
STM32U5A5ZIT6.pdf
- Description:
- IC MCU 32BIT 2MB FLASH 144LQFP
- Quantity:
- Payment:
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Inventory:1,569
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Product details
Overview
STM32U5A5ZIT6 from STMicroelectronics is an ultra-low-power Arm® Cortex®-M33 32-bit microcontroller with TrustZone® security, 4 MB Flash, 2.5 MB SRAM, LTDC display controller, MIPI® DSI host interface, and hardware crypto accelerators. It operates from 1.71 V to 3.6 V across –40 °C to +125 °C, delivers 240 DMIPS at 160 MHz, and supports autonomous low-power background operation (LPBAM) down to Stop 2 mode for battery-powered HMI and secure edge nodes.
For engineers reviewing the STM32U5A5ZIT6 datasheet, STM32U5A5ZIT6 pinout, STM32U5A5ZIT6 application, or STM32U5A5ZIT6 equivalent, key selection considerations include its dual-bank Flash with ECC and read-while-write capability, 2.5 MB SRAM with configurable ECC coverage, TrustZone-enabled peripheral isolation, LPBAM-peripheral DMA autonomy, and MIPI DSI + LTDC co-processing for high-resolution embedded displays.
Technical Context
The STM32U5A5ZIT6 integrates an Arm Cortex-M33 core with TrustZone, MPU, FPU, and DSP extensions, coupled with ART Accelerator (32-Kbyte ICACHE + 16-Kbyte DCACHE1) enabling zero-wait-state execution at up to 160 MHz. Its power architecture combines embedded LDO and SMPS step-down converter with dynamic voltage scaling and on-the-fly switching.
Security is implemented via SESIP3/PSA Level 3 certification, secure boot with unique entry, hardware root of trust (HDP), secure firmware installation (SFI), and dedicated accelerators: two AES coprocessors (one DPA-resistant), PKA, HASH, OTFDEC for Octo-SPI memory decryption, and NIST SP800-90B-compliant TRNG.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M33 with TrustZone, FPU, MPU, and DSP extensions - enables secure, deterministic real-time control with cryptographic isolation. |
| Max Clock / Performance | 160 MHz / 240 DMIPS - supports high-throughput signal processing and graphics rendering without external clock sources. |
| Memory | 4 MB Flash (ECC, 2-bank RWW) + 2.5 MB SRAM (configurable ECC) - allows safe over-the-air updates and robust data retention in safety-critical contexts. |
| Low-Power Modes | 150 nA Shutdown, 480 nA Standby w/RTC, 2 μA Stop 3 w/40 KB SRAM - extends battery life in always-on sensor hubs and portable medical devices. |
| Graphics Interface | LTDC + MIPI DSI (2 lanes @ 500 Mbit/s each) + Neo-Chrom GPU2D + Chrom-ART DMA2D - enables smooth 720p+ display output with hardware-accelerated rotation, scaling, and alpha blending. |
| Security Features | SESIP3/PSA Level 3 certified, TrustZone-peripheral isolation, secure boot, HUK, 512-byte OTP, active tampers - meets requirements for payment terminals, industrial gateways, and connected health devices. |
| Analog Peripherals | Two 14-bit ADCs (2.5 Msps, HW oversampling), 12-bit DAC (2 ch), 2 op-amps with PGA, 2 ultra-low-power comparators - supports precision sensor acquisition and closed-loop analog control in Stop 2 mode. |
Pinout & Package
LQFP144 (20 × 20 mm, 0.5 mm pitch) package with 156 fast I/Os - 144 pins used for signal/power/ground, supporting 5 V-tolerant operation on most pins and independent 1.08 V supply for up to 14 I/Os.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Main power supply and ground | Core and I/O domain supply (1.71–3.6 V); decoupling required per datasheet layout guidelines for stable 160 MHz operation. |
| VDDA, VSSA | Analog power and ground | Independent 1.71–3.6 V supply for ADC/DAC/OPAMP; mandatory separation from digital rails to maintain 14-bit linearity. |
| PC13–PC15 | RTC oscillator inputs | Support 32.768 kHz crystal connection; enable calendar RTC with alarm and calibration in VBAT mode. |
| PD0–PD1 | MIPI DSI clock/data lanes | Dedicated high-speed differential pairs for DSI host interface; require controlled impedance routing (100 Ω diff) for reliable 500 Mbit/s operation. |
| PE0–PE15 | LTDC data bus (RGB888) | 24-bit parallel RGB interface supporting up to WXGA resolution; synchronized with pixel clock and sync signals for TFT-LCD panels. |
| PF0–PF15 | Octo-SPI I/Os | Configurable as single/dual/quad/octal SPI for external flash/PSRAM/NOR; support on-the-fly decryption via OTFDEC engine. |
Key Features
| Feature | Design Value |
|---|---|
| LPBAM (Low-Power Background Autonomous Mode) | Enables peripherals (ADC, timers, UART) to operate autonomously via DMA in Stop 2 mode - eliminates CPU wake-ups for periodic sensing or logging. |
| Neo-Chrom GPU2D + Chrom-ART DMA2D | Hardware-accelerated 2D graphics pipeline supporting rotation, scaling, perspective-correct texture mapping, and alpha-blending - reduces CPU load by >70 % in GUI rendering. |
| TrustZone + GTZC Peripheral Protection | Configurable secure/non-secure memory/peripheral partitioning at runtime - isolates firmware update logic, crypto keys, and sensor data from untrusted application code. |
| On-the-Fly Decryption (OTFDEC) | Decrypts external Octo-SPI memory contents transparently during fetch - enables secure code execution from external flash without exposing plaintext firmware. |
| VBAT Domain Retention | Retains RTC, 32 × 32-bit backup registers, and 2 KB backup SRAM on coin-cell supply - maintains timekeeping and critical state during main power loss. |
Applications
| Smart Home Hub | Portable Medical Monitor |
|---|---|
Use Scenario: Central gateway aggregating BLE/Zigbee sensors, managing local automation rules, and displaying status on color LCD. IC Role / Device Role / Timing Role: Main application processor with integrated MIPI DSI + LTDC driving 5-inch 720p display, running RTOS and secure OTA stack. Use Value: LPBAM enables continuous sensor polling at <2 µA while preserving 2.5 MB SRAM for local rule engine; TrustZone isolates BLE stack from UI code. | Use Scenario: Battery-powered ECG/SpO₂ monitor with touch GUI, wireless telemetry, and 7-day data logging. IC Role / Device Role / Timing Role: Single-chip HMI controller handling analog front-end acquisition, real-time waveform rendering, and Bluetooth LE transmission. Use Value: Dual 14-bit ADCs sample at 2.5 Msps with hardware oversampling for noise reduction; Stop 2 mode draws 4.65 µA with 40 KB SRAM retained for buffer storage. |
| Industrial HMI Panel | Secure Payment Terminal |
Use Scenario: DIN-rail mounted operator interface with 10-inch WVGA display, CAN FD fieldbus connectivity, and local PLC control logic. IC Role / Device Role / Timing Role: Graphics-capable MCU interfacing to LTDC-driven TFT panel and FDCAN network; executes deterministic control loops at 1 kHz. Use Value: Chrom-GRC (GFXMMU) optimizes graphic resource usage by up to 20 %; 19 timers include 2 advanced motor-control timers for servo drive PWM generation. | Use Scenario: Contactless payment terminal with secure PIN entry, EMV transaction processing, and tamper-detect housing. IC Role / Device Role / Timing Role: PSA Level 3-certified secure element hosting payment applets, managing cryptographic keys, and validating card transactions. Use Value: SESIP3 certification, active tampers, HUK, and secure boot ensure compliance with PCI PTS v6; AES/PKA accelerators reduce transaction latency by 4× vs software-only crypto. |
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 |
|---|---|---|---|
| STM32U575ZIT6 | Same package and pinout; lacks MIPI DSI and Neo-Chrom GPU2D; retains LTDC and Chrom-ART DMA2D; 3 MB Flash, 1 MB SRAM. | Suitable for non-MIPI display interfaces (e.g., RGB, DPI) where GPU2D acceleration is unnecessary. | Select when display resolution ≤ WVGA and DSI PHY integration is not required - reduces BOM cost by ~12 %. |
| RA8T1L020FBC0 | Arm Cortex-M85 core; 2 MB Flash, 1.5 MB SRAM; no TrustZone but includes Arm CryptoCell-312; supports LVDS display interface only. | Targets automotive instrument clusters with ASIL-B functional safety; lacks LPBAM and VBAT retention features. | Choose for ISO 26262-compliant designs requiring higher core performance and hardware safety mechanisms, not ultra-low-power portable use cases. |
Compared with STM32U5A5ZIT6, the STM32U575ZIT6 trades DSI/GPU2D for lower cost and reduced SRAM/Flash - ideal for simpler HMIs - while the RA8T1L020FBC0 targets automotive safety over energy efficiency, lacking VBAT retention and LPBAM, making it unsuitable for battery-operated edge devices.
Availability
STM32U5A5ZIT6 is available at Aetrix Electronics and suitable for smart home hubs, portable medical monitors, industrial HMI panels, and secure payment terminals requiring stable component supply, long-term lifecycle assurance, and full traceability.
Supply support for STM32U5A5ZIT6 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 management ICs, MEMS, and automotive semiconductors since 1987.
The STM32U5 series is ST's flagship ultra-low-power secure MCU product line, engineered for battery-powered edge AI, secure IoT endpoints, and human-machine interfaces demanding PSA Level 3 certification and sub-µA standby operation.
FAQ
What is the maximum operating temperature range for the STM32U5A5ZIT6?
The STM32U5A5ZIT6 is qualified for operation from –40 °C to +125 °C ambient temperature, meeting industrial and extended-temperature requirements. This rating applies to the LQFP144 package variant and is validated per JEDEC JESD47 stress testing standards, with thermal derating applied above 105 °C for sustained 160 MHz operation.
Does the STM32U5A5ZIT6 support external memory interfaces beyond Octo-SPI?
Yes - in addition to two Octo-SPI controllers, the STM32U5A5ZIT6 integrates a 16-bit HSPI interface (up to 160 MHz), Flexible Static Memory Controller (FSMC) supporting SRAM/PSRAM/NOR/NAND/FRAM, and an external memory interface compatible with 8-/16-/32-bit data buses. These allow direct attachment of parallel displays, legacy memory, or high-bandwidth PSRAM for frame buffers.
How does the LPBAM feature reduce system-level power consumption?
LPBAM enables peripherals like ADCs, timers, and UARTs to execute predefined sequences autonomously using GPDMA/LPDMA without CPU intervention - even in Stop 2 mode (4.65 µA). This eliminates wake-up latency and CPU leakage, reducing average current by up to 65 % in sensor-logging applications versus traditional interrupt-driven polling.
Can the STM32U5A5ZIT6's MIPI DSI interface drive a 1080p display?
No - the MIPI DSI host controller supports two lanes at up to 500 Mbit/s each (1 Gbit/s total), sufficient for 720p@60 Hz or 1080p@30 Hz with compression. Driving native 1080p@60 Hz requires ≥2.1 Gbit/s bandwidth; for such resolutions, the LTDC parallel interface (supporting RGB888 up to WXGA) or external bridge ICs are recommended instead.
STM32U5A5ZIT6 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- -
- Series:
- -
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
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- Core Size:
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- Speed:
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- Connectivity:
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- Peripherals:
- -
- Number of I/O:
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- Program Memory Size:
- -
- Program Memory Type:
- -
- EEPROM Size:
- -
- RAM Size:
- -
- Voltage - Supply (Vcc/Vdd):
- -
- Data Converters:
- -
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- -
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- -
- Mounting Type:
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- Supplier Device Package:
STM32U5A5ZIT6 FAQ
1.How can I place an order for STM32U5A5ZIT6 through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32U5A5ZIT6 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 STM32U5A5ZIT6 reliable?
The price and inventory of STM32U5A5ZIT6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32U5A5ZIT6 is usually 5 days.
3.What payment methods are accepted for STM32U5A5ZIT6?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32U5A5ZIT6 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32U5A5ZIT6?
STM32U5A5ZIT6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32U5A5ZIT6 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 STM32U5A5ZIT6?
For technical support, including STM32U5A5ZIT6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32U5A5ZIT6 requirements.
6.How does Aetrix verify that STM32U5A5ZIT6 is sourced from the original manufacturer or authorized distributors?
All STM32U5A5ZIT6 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 STM32U5A5ZIT6 meets industry standards.
7.What is the process for return or replacement of STM32U5A5ZIT6?
All STM32U5A5ZIT6 units undergo pre-shipment inspection (PSI). If there is an issue with STM32U5A5ZIT6, 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 STM32U5A5ZIT6 part is unused and in its original packaging.
Return procedure for STM32U5A5ZIT6:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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