STMicroelectronics STM32U5A9ZJY6QTR
- Part No.:
- STM32U5A9ZJY6QTR
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 150-UFBGA, WLCSP
- Datasheet:
-
STM32U5A9ZJY6QTR.pdf
- Description:
- IC MCU 32BIT 4MB FLASH 150WLCSP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
STM32U5A9ZJY6QTR from STMicroelectronics is an ultra-low-power Arm® Cortex®-M33 32-bit microcontroller with TrustZone® and FPU, delivering 240 DMIPS at up to 160 MHz. It integrates 4 MB Flash with ECC, 2.5 MB SRAM (with configurable ECC), MIPI® DSI host controller, LTDC, Neo-Chrom GPU, and hardware crypto accelerators (AES, PKA, HASH, RNG). It targets secure, graphics-rich, battery-constrained applications such as smart medical wearables and industrial HMI panels.
For engineers reviewing the STM32U5A9ZJY6QTR datasheet, STM32U5A9ZJY6QTR pinout, STM32U5A9ZJY6QTR application, or STM32U5A9ZJY6QTR equivalent, key selection criteria include its 150 nA Shutdown mode, dual Octo-SPI interfaces, TrustZone-certified secure boot, LPBAM autonomous peripheral operation in Stop 2, and 14-bit ADC with 2.5-Msps sampling in low-power modes.
Technical Context
The device implements a dual-cache architecture with 32-Kbyte ICACHE and two independent 16-Kbyte DCACHEs-one for external memory acceleration (DCACHE1), another for graphics (DCACHE2). Its power system combines embedded LDO and SMPS with on-the-fly voltage scaling and dynamic power gating per peripheral domain.
TrustZone security is enforced via Global TrustZone Controller (GTZC), enabling secure/non-secure memory partitioning, securable GPIOs/peripherals, and root-of-trust boot with HDP and SFI. The cryptographic subsystem includes two AES coprocessors (one DPA-resistant), PKA, OTFDEC for external 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, DSP extensions - enables secure real-time control with deterministic floating-point math. |
| Max Clock / Performance | 160 MHz / 240 DMIPS - supports high-throughput signal processing and UI rendering without external co-processors. |
| Memory | 4 MB Flash (ECC, read-while-write), 2.5 MB SRAM (ECC-configurable) - enables large firmware images and buffer-intensive graphics/audio stacks. |
| 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 or display standby states. |
| Graphics & Display | MIPI DSI (2 lanes @ 500 Mbit/s), LTDC, Neo-Chrom GPU2D, Chrom-ART DMA2D - drives high-resolution color displays with hardware-accelerated rotation, scaling, and alpha blending. |
| Security Certification | SESIP3 and PSA Level 3 Certified - meets stringent requirements for secure firmware installation, OTA updates, and tamper-resistant data storage. |
| Analog Peripherals | 2× 14-bit ADC (2.5 Msps, oversampling), 12-bit DAC (2 ch), 2 OPAMPs, 2 comparators - supports precision sensor acquisition and analog actuation with autonomous operation in Stop 2. |
Pinout & Package
LQFP144 (20 × 20 mm, 0.5 mm pitch) package with 156 fast I/Os - supports high-density PCB layouts while maintaining 5V-tolerant logic and independent 1.08 V I/O supply capability for mixed-voltage interfacing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Main power and ground | Supplies core and digital peripherals; decoupling required per ST AN5257 for stable 160 MHz operation. |
| VDDA, VSSA | Analog power and ground | Isolated supply for ADC/DAC/OPAMP; enables <1 LSB INL error and noise immunity in precision acquisition. |
| PC0–PC15 | GPIO bank C | Supports alternate functions including OCTOSPI1, FMC, and DSI clock/data - critical for external flash and display interface routing. |
| PD0–PD15 | GPIO bank D | Configurable as LTDC data/control lines or SDMMC signals - enables direct TFT RGB interface or microSD card support. |
| PH0–PH15 | GPIO bank H | Primary MIPI DSI lane pins (CLKP/N, DAT0P/N, DAT1P/N) - requires controlled impedance (100 Ω differential) for reliable 500 Mbit/s DSI link. |
| NRST | Active-low reset input | Asynchronous reset with internal pull-up; compatible with external push-button or supervisor IC reset assertion. |
Key Features
| Feature | Design Value |
|---|---|
| LPBAM (Low-Power Background Autonomous Mode) | Enables DMA-driven peripheral chains (e.g., ADC → memory → timer trigger) without CPU wake-up - reduces active time by >90% in sensor logging. |
| Neo-Chrom GPU2D + Chrom-ART Accelerator | Hardware-accelerated 2D graphics: arbitrary-angle rotation, perspective-correct texture mapping, and alpha-blended layer composition - eliminates CPU load for dynamic GUIs. |
| On-the-Fly Decryption (OTFDEC) | Decrypts Octo-SPI external NOR/FRAM memory in real time using AES-128/256 - allows secure code execution from external memory without RAM exposure. |
| Secure Firmware Installation (SFI) | Root-secured service validates and installs signed firmware images using embedded RSS - prevents unauthorized code injection during field updates. |
| Dual Octo-SPI Interfaces | Independent OCTOSPI1/OCTOSPI2 controllers support x1/x2/x4/x8 protocols - enables simultaneous boot from one flash and data streaming from another. |
Applications
| Smart Medical Wearable | Industrial HMI Panel |
|---|---|
Use Scenario: Continuous ECG/SpO₂ monitoring with OLED display and Bluetooth LE telemetry. IC Role / Device Role / Timing Role: Main application MCU managing sensor acquisition (ADC4 autonomous in Stop 2), real-time waveform rendering (LTDC + Neo-Chrom GPU), and secure BLE stack execution (TrustZone-protected firmware). Use Value: 195 nA Standby current extends coin-cell battery life beyond 12 months; hardware crypto ensures HIPAA-compliant data encryption at rest and in transit. | Use Scenario: Ruggedized touch-enabled control panel for factory automation with local data logging and remote diagnostics. IC Role / Device Role / Timing Role: Central controller interfacing with CAN FD fieldbus, driving 720p LCD via MIPI DSI, and executing deterministic PLC logic in TrustZone-secure world. Use Value: Dual Octo-SPI enables secure firmware update from external flash while running; 14-bit ADC + OPAMP supports analog sensor calibration without external signal conditioning. |
| Secure IoT Gateway | Portable Diagnostic Device |
Use Scenario: Edge gateway aggregating Zigbee/Z-Wave sensors, performing local AI inference, and relaying encrypted data to cloud via TLS. IC Role / Device Role / Timing Role: Secure application processor hosting TF-M, running PSA-certified TLS stack (SecureMark™-TLS = 120000), and accelerating neural net layers via CORDIC/FMAC. Use Value: PSA Level 3 certification validates secure boot chain and runtime attestation; 4.65 µA Stop 2 mode preserves context during intermittent network connectivity. | Use Scenario: Handheld ultrasound or point-of-care analyzer with battery-powered operation, high-resolution imaging, and regulatory-compliant data export. IC Role / Device Role / Timing Role: Real-time image processor acquiring raw sensor data via DCMI, applying beamforming in FMAC, and rendering grayscale B-mode images via LTDC + Chrom-GRC resource optimization. Use Value: Chrom-GRC reduces GPU memory bandwidth by up to 20%; 2.5-Msps ADC sampling captures RF echo signals with sub-ns timing resolution. |
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 core but 2 MB Flash, 1 MB SRAM, no MIPI DSI or Neo-Chrom GPU - lacks display acceleration and external memory bandwidth. | Suitable for non-graphical secure edge nodes (e.g., smart metering), not display-centric HMI. | Select when display interface and >2 MB SRAM are unnecessary - lower cost and smaller footprint. |
| RA8T1023GFP#AA0 | Arm Cortex-M85 core, 2 MB Flash, 1.5 MB SRAM, no TrustZone-certified crypto accelerators - uses Renesas Secure Crypto Engine instead of PSA Level 3 validated blocks. | Targets automotive functional safety (ASIL-B ready), not medical/industrial security compliance. | Select for ISO 26262 workflows requiring certified safety mechanisms over PSA-certified security. |
Compared with STM32U5A9ZJY6QTR, the STM32U575ZIT6Q sacrifices display and memory bandwidth for cost reduction, while the RA8T1023GFP#AA0 shifts focus from PSA-certified security to ASIL-B safety - neither matches the combined ultra-low-power graphics, crypto, and certification profile of the U5A9.
Availability
STM32U5A9ZJY6QTR is available at Aetrix Electronics and suitable for smart medical wearables, industrial HMI panels, secure IoT gateways, and portable diagnostic devices requiring stable component supply across multi-year production cycles.
Supply support for STM32U5A9ZJY6QTR 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, specializing in microcontrollers, power management, sensors, and automotive ICs with strong emphasis on energy efficiency and security.
The STM32U5 series is designed for ultra-low-power, secure, and graphics-capable embedded applications - targeting next-generation battery-operated medical, industrial, and consumer devices demanding PSA-certified trust anchors and rich UI capabilities.
FAQ
What is the maximum operating frequency and associated performance metric?
The STM32U5A9ZJY6QTR operates at up to 160 MHz with 240 DMIPS performance measured using Dhrystone 2.1. This is achieved via the ART Accelerator's 32-Kbyte instruction cache enabling zero-wait-state execution from Flash, and is validated across the full temperature range (−40 °C to +125 °C) with supply voltage 1.71–3.6 V.
Does this MCU support external memory interfaces for code execution?
Yes - it features two Octo-SPI interfaces and one 16-bit HSPI interface supporting NOR, NAND, FRAM, PSRAM, and SRAM. With On-the-Fly Decryption (OTFDEC), encrypted code can be executed directly from external Octo-SPI memory using AES-128/256, eliminating the need to copy firmware into internal RAM.
How does TrustZone implementation differ from standard Cortex-M33 deployments?
ST implements TrustZone with hardware-enforced isolation via the Global TrustZone Controller (GTZC), which secures memories, peripherals, and GPIOs at silicon level. It includes Secure Hide Protection Area (HDP), Root Secure Services (RSS), and flexible life-cycle management with RDP - all validated under SESIP3 and PSA Level 3 certification, exceeding baseline TrustZone configuration.
What display interfaces are supported and what are their key timing limits?
The MCU supports MIPI DSI (2 lanes, up to 500 Mbit/s per lane) and parallel LCD-TFT via LTDC. DSI timing requires ≤1 ns skew between CLKP/N and DATxP/N pairs; LTDC supports up to 24-bit RGB at 60 Hz with programmable pixel clock (up to 80 MHz) and integrated Chrom-GRC for 20% bandwidth reduction through intelligent memory access scheduling.
STM32U5A9ZJY6QTR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 150-UFBGA, WLCSP
- Series:
- STM32U5
- Packaging:
- Tape & Reel (TR)
- 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, LCD, PWM, SHA, Temp Sensor, TRNG, WDT
- Number of I/O:
- 108
- 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 22x12/14b SAR; D/A 2x12b
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32U5A9ZJY6QTR FAQ
1.How can I place an order for STM32U5A9ZJY6QTR through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32U5A9ZJY6QTR 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 STM32U5A9ZJY6QTR reliable?
The price and inventory of STM32U5A9ZJY6QTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32U5A9ZJY6QTR is usually 5 days.
3.What payment methods are accepted for STM32U5A9ZJY6QTR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32U5A9ZJY6QTR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32U5A9ZJY6QTR?
STM32U5A9ZJY6QTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32U5A9ZJY6QTR 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 STM32U5A9ZJY6QTR?
For technical support, including STM32U5A9ZJY6QTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32U5A9ZJY6QTR requirements.
6.How does Aetrix verify that STM32U5A9ZJY6QTR is sourced from the original manufacturer or authorized distributors?
All STM32U5A9ZJY6QTR 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 STM32U5A9ZJY6QTR meets industry standards.
7.What is the process for return or replacement of STM32U5A9ZJY6QTR?
All STM32U5A9ZJY6QTR units undergo pre-shipment inspection (PSI). If there is an issue with STM32U5A9ZJY6QTR, 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 STM32U5A9ZJY6QTR part is unused and in its original packaging.
Return procedure for STM32U5A9ZJY6QTR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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