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STMicroelectronics STM32U5A5AJH6Q

Name: STM32U5A5AJH6Q
Brand: STMicroelectronics
SKU: STM32U5A5AJH6Q
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: STM32U5A5AJH6Q

Manufacturer:: STMicroelectronics

Category:: Microcontrollers

Package:: 169-TFBGA

Datasheet:: STM32U5A5AJH6Q.pdf

Description:: IC MCU 32BIT 4MB FLASH 169TFBGA

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Product details

Overview

STM32U5A5AJH6Q 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, 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 - enabling battery-powered HMI and secure edge sensor hubs.

For engineers reviewing the STM32U5A5AJH6Q datasheet, STM32U5A5AJH6Q pinout, STM32U5A5AJH6Q application, or STM32U5A5AJH6Q equivalent, this page provides verified technical context on TrustZone-secured execution, dual-bank flash with ECC, LPBAM peripheral autonomy, and MIPI DSI + LTDC graphics integration for industrial UIs and certified IoT endpoints.

Technical Context

The device integrates an Arm Cortex-M33 core with TrustZone-enabled memory isolation, MPU, FPU, and DSP extensions, coupled with ART Accelerator (32-Kbyte ICACHE + 16-Kbyte DCACHE1) enabling zero-wait-state execution at 160 MHz. Its power architecture combines embedded LDO and SMPS step-down converter with dynamic voltage scaling and switch-on-the-fly capability.

Security is implemented via SESIP3/PSA Level 3-certified root of trust, including secure boot entry, HDP-protected firmware, SFI with embedded RSS, hardware unique key (HUK), and active tamper detection. Graphics acceleration leverages Neo-Chrom GPU2D, Chrom-ART DMA2D, and Chrom-GRC (GFXMMU) for resource-optimized 2D rendering and perspective-correct texture mapping.

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 offload.
Max Clock / Performance	160 MHz / 240 DMIPS - supports high-throughput signal processing and UI rendering without external co-processors.
Memory	4 MB Flash (ECC, dual-bank RWW), 2.5 MB SRAM (ECC configurable) - ensures data integrity and firmware resilience in safety-critical deployments.
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 sensing and remote monitoring nodes.
Graphics Interface	MIPI® DSI host (2 lanes @ 500 Mbit/s each) + LTDC controller - drives high-resolution color displays directly without external video buffer.
Security Certification	SESIP3 and PSA Level 3 Certified Assurance Target - meets baseline requirements for secure firmware installation and OTA updates in regulated markets.
Analog Peripherals	Two 14-bit ADCs (2.5 Msps, hardware oversampling), 12-bit DAC (2 ch), 2 op-amps with PGA, 2 ultra-low-power comparators - enables precision sensor fusion and closed-loop analog control.

Pinout & Package

LQFP64 (10 × 10 mm) package with 64 pins, 5V-tolerant I/Os (most), and independent supply support for up to 14 I/Os down to 1.08 V.

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 stable core and analog domains.
VDDA, VSSA	Analog domain power and ground	Independent analog supply improves ADC/DAC accuracy and noise immunity; must be filtered separately from digital rails.
PA0–PA15, PB0–PB15, etc.	General-purpose I/Os	Up to 156 fast GPIOs with interrupt capability; most 5V-tolerant and configurable as LPBAM-triggered peripherals in Stop modes.
PF14–PF15	MIPI DSI clock/data lanes	Dedicated differential pairs for high-speed DSI interface - require controlled impedance routing (100 Ω differential) and length matching.
PD0–PD15	LTDC parallel RGB interface	16-bit RGB output supporting up to WXGA resolution; includes HSYNC/VSYNC/DE timing signals for direct TFT panel connection.
PC13–PC15	RTC oscillator inputs	Connects to 32.768 kHz crystal for hardware calendar and alarm functions - critical for time-stamped logging and wake-up scheduling.

Key Features

Feature	Design Value
LPBAM (Low-Power Background Autonomous Mode)	Enables DMA-driven peripheral chains (e.g., ADC → AES → SRAM) without CPU wake-up - reduces active time by >90% in sensor data acquisition cycles.
Neo-Chrom GPU2D + Chrom-ART DMA2D	Accelerates rotation, scaling, and alpha-blending operations - cuts CPU load for GUI redraws and enables smooth 60 fps animation on 800×480 displays.
On-the-fly Octo-SPI decryption (OTFDEC)	Decrypts external encrypted NOR/PSRAM content in real time using AES-256 - eliminates need for RAM-based decryption buffers and protects firmware IP.
TrustZone + GTZC peripheral protection	Allows secure/non-secure memory partitioning and peripheral gating - isolates bootloader, crypto keys, and sensor data from untrusted application code.
VBAT domain with RTC + 32×32-bit backup registers + 2 KB backup SRAM	Maintains real-time clock and critical state during main power loss - enables fail-safe restart and tamper-evident logging in energy-harvesting systems.

Applications

Industrial HMI Panel

Secure Medical Sensor Hub

Use Scenario: Touch-enabled local operator interface for PLC-controlled machinery with real-time diagnostics and alarm visualization.

IC Role / Device Role / Timing Role: Main application processor managing LTDC-driven TFT display, capacitive touch via TSC, and CAN FD communication with field devices.

Use Value: LPBAM reduces idle power to <2 µA while maintaining touch responsiveness; MIPI DSI + LTDC eliminates external video buffer IC, lowering BOM cost and PCB area.

Use Scenario: Portable patient monitor aggregating ECG, SpO₂, and temperature data with encrypted local storage and Bluetooth LE telemetry.

IC Role / Device Role / Timing Role: Secure system-on-chip handling analog front-end digitization, TrustZone-isolated crypto signing, and BLE packet assembly.

Use Value: Dual 14-bit ADCs achieve <100 µV ENOB for clinical-grade ECG; PSA Level 3 certification satisfies IEC 62304 software lifecycle requirements.

Smart Energy Meter

Automotive Cabin Controller

Use Scenario: DIN-rail mounted electricity meter with tamper detection, waveform capture, and secure firmware updates over NB-IoT.

IC Role / Device Role / Timing Role: Trusted execution environment for metrology calculations, secure boot validation, and AES-256 encrypted OTA update verification.

Use Value: Active tampers detect enclosure breach and erase keys; OTFDEC allows encrypted firmware storage in external SPI NOR - prevents cloning and reverse engineering.

Use Scenario: In-vehicle infotainment sub-module controlling ambient lighting, HVAC feedback, and driver status sensing via camera interface.

IC Role / Device Role / Timing Role: Vision-capable MCU interfacing with DCMI camera, driving RGB LED strips via PWM timers, and communicating via CAN FD with head unit.

Use Value: DCMI + Chrom-GRC enables low-latency image preprocessing; 17 timers include advanced motor-control units for precise LED current regulation.

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
STM32U575ZIT6Q	Same U5A series architecture but with 2 MB Flash, 1 MB SRAM, no MIPI DSI, and smaller TFBGA169 package.	Lacks integrated DSI/LTDC - requires external display bridge for high-res panels; better suited for non-graphic secure gateways.	Select when display interface is unnecessary and footprint/cost optimization is prioritized over graphics capability.
NXP i.MX RT1187CVM8A	Arm Cortex-M7 + M33 dual-core, 1 MB SRAM, no TrustZone-certified crypto accelerators, no LPBAM, larger 289-pin BGA.	Higher performance but higher static power (1.2 mA Run vs. 18.5 µA/MHz); lacks PSA Level 3 certification and autonomous low-power peripherals.	Choose only if raw throughput outweighs battery life and security certification requirements - not drop-in compatible.

Compared with STM32U5A5AJH6Q, STM32U575ZIT6Q trades display capability for smaller size and lower cost, while i.MX RT1187CVM8A offers higher compute bandwidth at the expense of certified security, LPBAM autonomy, and ultra-low-power efficiency - making the U5A5AJH6Q optimal for certified, battery-constrained, graphics-enabled edge nodes.

Availability

STM32U5A5AJH6Q is available at Aetrix Electronics and suitable for industrial HMIs, secure medical sensors, smart energy meters, and automotive cabin controllers requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for STM32U5A5AJH6Q 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 analog components for industrial, automotive, and consumer applications.

The STM32U5 series targets ultra-low-power, security-certified edge computing - combining Arm TrustZone, PSA-certified firmware services, and LPBAM to enable battery-operated, tamper-resistant IoT endpoints with rich user interfaces.

FAQ

What is the maximum operating temperature rating for STM32U5A5AJH6Q?

The STM32U5A5AJH6Q is rated for operation from –40 °C to +125 °C ambient temperature, validated per ST's production data sheet DS13543 Rev 3. This extended range supports deployment in under-hood automotive modules, industrial motor drives, and outdoor energy infrastructure where thermal stress exceeds standard commercial limits.

Does STM32U5A5AJH6Q support hardware-accelerated TLS stack execution?

Yes - the device achieves 120,000 SecureMark™-TLS score via dual AES coprocessors (one DPA-resistant), PKA for RSA/ECC, HASH accelerator, and true random number generator compliant with NIST SP800-90B. These accelerators offload TLS 1.2/1.3 handshake and record encryption from the Cortex-M33 core.

Can the MIPI DSI interface drive a 1080p display?

No - the MIPI DSI host supports two lanes at up to 500 Mbit/s each (1 Gbit/s aggregate), sufficient for WVGA (800×480) or HD (1280×720) at 60 fps with 24-bit color. Driving native 1080p requires ≥2.1 Gbit/s bandwidth; use LTDC + external DSI bridge IC for higher resolutions.

How does LPBAM reduce firmware development complexity?

LPBAM abstracts low-power peripheral sequencing into preconfigured DMA-linked chains (e.g., "ADC sample → AES encrypt → store to SRAM") that execute autonomously in Stop 2 mode. Developers configure chains via STM32CubeMX and HAL drivers - eliminating manual register-level sleep/wake ISR coding and reducing runtime CPU intervention by >90%.

STM32U5A5AJH6Q Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Package/Case:: 169-TFBGA

Series:: STM32U5

Packaging:: Tray

Product Status:: Active

Programmable:: -

Core Processor:: ARM® Cortex®-M33

Core Size:: 32-Bit

Speed:: 160MHz

Connectivity:: CANbus, EBI/EMI, FIFO, I2C, IrDA, LINbus, MMC/SD, SPI, UART/USART/USB

Peripherals:: Brown-out Detect/Reset, Crypto - AES, DMA, PWM, SHA, Temp Sensor, TRNG, WDT

Number of I/O:: 133

Program Memory Size:: 4MB (4M x 8)

Program Memory Type:: FLASH

EEPROM Size:: -

RAM Size:: 2.5M x 8

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

Data Converters:: A/D 24x12/14b SAR; D/A 2x12b

Oscillator Type:: External, Internal

Operating Temperature:: -40°C ~ 85°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:

STM32U5A5AJH6Q FAQ

1.How can I place an order for STM32U5A5AJH6Q through Aetrix?

Please submit a Request for Quotation (RFQ) for STM32U5A5AJH6Q 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 STM32U5A5AJH6Q reliable?

The price and inventory of STM32U5A5AJH6Q are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32U5A5AJH6Q is usually 5 days.

3.What payment methods are accepted for STM32U5A5AJH6Q?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32U5A5AJH6Q transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for STM32U5A5AJH6Q?

STM32U5A5AJH6Q orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your STM32U5A5AJH6Q 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 STM32U5A5AJH6Q?

For technical support, including STM32U5A5AJH6Q datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32U5A5AJH6Q requirements.

6.How does Aetrix verify that STM32U5A5AJH6Q is sourced from the original manufacturer or authorized distributors?

All STM32U5A5AJH6Q 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 STM32U5A5AJH6Q meets industry standards.

7.What is the process for return or replacement of STM32U5A5AJH6Q?

All STM32U5A5AJH6Q units undergo pre-shipment inspection (PSI). If there is an issue with STM32U5A5AJH6Q, 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 STM32U5A5AJH6Q part is unused and in its original packaging.

Return procedure for STM32U5A5AJH6Q:

1.Submit a request within 90 days.

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

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