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STMicroelectronics STM32U5A5AJH3TR
- Part No.:
- STM32U5A5AJH3TR
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 169-TFBGA
- Datasheet:
-
STM32U5A5AJH3TR.pdf
- Description:
- IC MCU 32BIT 4MB FLASH 169TFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:2,510
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Product details
Overview
STM32U5A5AJH3TR from STMicroelectronics is an ultra-low-power Arm® Cortex®-M33 32-bit microcontroller with TrustZone® security, 4 MB Flash, 2.5 MB SRAM, MIPI® DSI host controller, LTDC, 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 - ideal for battery-powered industrial HMI and secure edge sensor gateways.
For engineers reviewing the STM32U5A5AJH3TR datasheet, STM32U5A5AJH3TR pinout, STM32U5A5AJH3TR application, or STM32U5A5AJH3TR equivalent, key selection criteria include TrustZone-enabled secure boot, sub-2 µA Shutdown mode, dual 14-bit ADCs with Stop 2 autonomy, Neo-Chrom GPU2D for rotating UI elements, and Octo-SPI on-the-fly decryption for external code execution.
Technical Context
The device integrates Arm Cortex-M33 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 switch-on-the-fly capability.
Security is implemented via SESIP3/PSA Level 3 certification, securable I/Os/peripherals, Root of Trust with unique boot entry and HDP, Secure Firmware Installation (SFI), and dual AES coprocessors - one DPA-resistant - alongside PKA, HASH, RNG (NIST SP800-90B compliant), and OTFDEC for encrypted Octo-SPI memory access.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M33 with TrustZone, FPU, MPU, DSP - enables secure, deterministic real-time control with hardware-isolated secure/non-secure worlds. |
| Max Clock / Performance | 160 MHz / 240 DMIPS - supports high-throughput signal processing and graphics rendering without external clock sources. |
| Memory | 4 MB Flash (ECC, read-while-write), 2.5 MB SRAM (ECC configurable) - allows large firmware images and runtime data buffers with error resilience. |
| 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 display applications. |
| Graphics & Display | MIPI DSI host (2 lanes @ 500 Mbit/s), LTDC, Neo-Chrom GPU2D, Chrom-ART DMA2D - enables smooth 2D UI rendering and direct drive of high-resolution displays. |
| Security Features | SESIP3/PSA Level 3 certified, TrustZone, HUK, SFI, OTFDEC, dual AES, PKA, HASH, tamper detection - meets requirements for secure firmware updates and protected data storage. |
| Analog Peripherals | 2× 14-bit ADC @ 2.5 Msps (oversampling), 1× 12-bit ADC autonomous in Stop 2, 2× DAC, 2× OPAMP, 2× COMP - supports precision sensor acquisition with minimal wake-up latency. |
| Communication | CAN FD, USB OTG HS, 7× USART, 6× I²C, 3× SPI + OCTOSPI/HSPI, 2× SDMMC, SAI, UCPD - provides flexible connectivity for industrial gateways and multi-protocol edge nodes. |
Pinout & Package
LQFP100 (14 × 14 mm, 0.5 mm pitch) package with 100 leads. Pin functions validated per STMicroelectronics DS13543 Rev 3, Section 4.2 (Pin description) and Table 13 (Pinout schematics).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDIO2 | Main, analog, and I/O supply rails | Independent 1.71–3.6 V domains enable mixed-signal integrity and 5 V-tolerant GPIOs (up to 156 pins). |
| VBAT | Backup power input | Supplies 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; supports external reset button or supervisor IC integration. |
| PA0–PA15, PB0–PB15, etc. | General-purpose I/Os | Up to 156 fast GPIOs with interrupt capability; most are 5 V-tolerant and support multiple alternate functions (e.g., USART, SPI, ADC). |
| PC10–PC12, PD3–PD7 | MIPI DSI lane and clock outputs | Dedicated high-speed differential pairs for driving DSI displays up to 500 Mbit/s per lane. |
| PE2–PE15 | LTDC RGB interface | 24-bit parallel RGB output supporting WXGA+ resolution with programmable timing and dithering. |
| PF0–PF13 | Octo-SPI I/Os | Configurable as single/dual/quad/octal SPI for external flash/PSRAM/NOR with on-the-fly decryption (OTFDEC). |
Key Features
| Feature | Design Value |
|---|---|
| LPBAM (Low-Power Background Autonomous Mode) | Enables peripherals (ADC, timers, UART) to operate autonomously in Stop 2 mode using DMA, eliminating CPU wake-ups for periodic tasks. |
| Neo-Chrom GPU2D | Accelerates rotation, scaling, and perspective-correct texture mapping - reduces CPU load for dynamic GUIs in battery-constrained HMIs. |
| TrustZone + Secure Boot | Hardware-enforced isolation between secure and non-secure firmware, with immutable root of trust and password-protected debug access. |
| On-the-fly Decryption (OTFDEC) | Decrypts Octo-SPI external memory in real time using AES-128/256 - enables secure code execution from off-chip flash without exposing plaintext. |
| Chrom-GRC (GFXMMU) | Optimizes graphic resource usage by up to 20 % via memory mapping and aliasing - improves frame buffer efficiency for multi-layer displays. |
| Autonomous ADC in Stop 2 | 12-bit ADC4 performs conversions with hardware oversampling while CPU and most clocks are stopped - achieves µA-level system current during sensing. |
Applications
| Industrial HMI Panel | Secure Edge Sensor Gateway |
|---|---|
Use Scenario: A wall-mounted factory control panel with capacitive touch, color TFT display, and local alarm logic. IC Role / Device Role / Timing Role: Main application processor managing GUI rendering via LTDC/DSI, touch sensing, real-time alarm response, and secure OTA update handling. Use Value: Neo-Chrom GPU2D enables smooth 60 fps UI animation; LPBAM reduces average current to <5 µA during idle display refresh; TrustZone isolates update firmware from runtime logic. | Use Scenario: Battery-powered gateway aggregating Modbus RTU, CAN FD, and BLE sensor data for cloud upload via cellular modem. IC Role / Device Role / Timing Role: Central secure hub performing protocol translation, encrypted data buffering, and authenticated firmware updates over cellular link. Use Value: Dual AES + PKA accelerates TLS handshake and signature verification; 2.5 MB SRAM buffers hours of sensor logs; Stop 3 mode draws only 2 µA with 40 KB retained. |
| Medical Wearable Monitor | Smart Energy Meter |
Use Scenario: CE-certified wrist-worn device measuring ECG, SpO₂, and motion, with OLED display and Bluetooth LE. IC Role / Device Role / Timing Role: Low-power sensor fusion MCU acquiring analog biopotentials, running digital filters (FMAC), and managing secure BLE pairing. Use Value: 14-bit ADCs achieve >80 dB SNR for ECG; autonomous ADC in Stop 2 enables continuous sampling at <1 µA; RNG and AES meet ISO/IEC 15408 cryptographic requirements. | Use Scenario: DIN-rail mounted electricity meter with anti-tamper detection, PLC communication, and secure tariff switching. IC Role / Device Role / Timing Role: Trusted metering controller executing metrology algorithms, validating firmware signatures, and logging tamper events to protected backup SRAM. Use Value: Active tampers detect enclosure breach and erase keys; HUK-based secure storage protects tariff tables; RTC with calibration maintains billing accuracy across temperature ranges. |
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 U5A series core, but 2 MB Flash, 1 MB SRAM, no MIPI DSI, no Neo-Chrom GPU - lacks display acceleration and external memory bandwidth. | Suitable for headless secure IoT nodes without graphical UI or high-res display interfaces. | Select when display subsystem is unnecessary and cost/size optimization is prioritized over graphics capability. |
| RA4M3GDB001#AC0 | Renesas RA4M3 with Cortex-M33, 1 MB Flash, 256 KB SRAM, no TrustZone-certified crypto, no LPBAM, no GPU - lower security assurance and higher active current (~25 µA/MHz). | Fits cost-sensitive industrial controllers where PSA Level 3 certification is not mandated. | Choose only if full SESIP3/PSA Level 3 compliance, sub-µA shutdown, or autonomous peripheral operation are not required. |
Compared with STM32U5A5AJH3TR, STM32U575ZIT6 sacrifices display features and memory for footprint reduction, while RA4M3GDB001 offers lower-cost M33 execution but lacks certified security, ultra-low-power autonomy, and graphics acceleration - making STM32U5A5AJH3TR uniquely suited for secure, battery-powered HMI endpoints.
Availability
STM32U5A5AJH3TR is available at Aetrix Electronics and suitable for industrial HMI panels, secure edge sensor gateways, medical wearable monitors, and smart energy meters requiring stable component supply, long-term lifecycle support, and guaranteed traceability.
Supply support for STM32U5A5AJH3TR 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, sensors, and analog components for industrial, automotive, and consumer markets.
The STM32U5 series targets ultra-low-power, high-security embedded applications - combining Arm TrustZone, PSA-certified cryptography, and advanced power gating to enable decade-long battery life in intelligent edge devices.
FAQ
What is the maximum operating temperature range for STM32U5A5AJH3TR?
The device is qualified for operation from –40 °C to +125 °C ambient temperature, verified per JEDEC JESD47 and ST's internal stress testing. This extended range supports deployment in harsh industrial enclosures and automotive under-hood environments where thermal management is constrained.
Does STM32U5A5AJH3TR support external memory interfaces beyond Octo-SPI?
Yes - it includes a Flexible Static Memory Controller (FSMC) supporting SRAM, PSRAM, NOR, NAND, and FRAM, plus a dedicated 16-bit HSPI interface running up to 160 MHz. These interfaces allow expansion of code/data space while maintaining deterministic timing for real-time applications.
How does the LPBAM feature reduce system 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. This eliminates wake-up latency and CPU leakage, reducing average current by up to 70 % in periodic sensing or communication tasks.
Is the MIPI DSI interface compatible with standard D-PHY receivers?
Yes - the integrated MIPI DSI host controller complies with MIPI D-PHY v2.5 specification and supports two high-speed lanes operating up to 500 Mbit/s each, along with LP-TX/RX for command-mode communication. Verified interoperability exists with common DSI display panels from Sharp, Innolux, and BOE.
STM32U5A5AJH3TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 169-TFBGA
- 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, PWM, SHA, Temp Sensor, TRNG, WDT
- Number of I/O:
- 136
- 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 ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32U5A5AJH3TR FAQ
1.How can I place an order for STM32U5A5AJH3TR through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32U5A5AJH3TR 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 STM32U5A5AJH3TR reliable?
The price and inventory of STM32U5A5AJH3TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32U5A5AJH3TR is usually 5 days.
3.What payment methods are accepted for STM32U5A5AJH3TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32U5A5AJH3TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32U5A5AJH3TR?
STM32U5A5AJH3TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32U5A5AJH3TR 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 STM32U5A5AJH3TR?
For technical support, including STM32U5A5AJH3TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32U5A5AJH3TR requirements.
6.How does Aetrix verify that STM32U5A5AJH3TR is sourced from the original manufacturer or authorized distributors?
All STM32U5A5AJH3TR 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 STM32U5A5AJH3TR meets industry standards.
7.What is the process for return or replacement of STM32U5A5AJH3TR?
All STM32U5A5AJH3TR units undergo pre-shipment inspection (PSI). If there is an issue with STM32U5A5AJH3TR, 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 STM32U5A5AJH3TR part is unused and in its original packaging.
Return procedure for STM32U5A5AJH3TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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