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STMicroelectronics STM32U5A5VJT6

Name: STM32U5A5VJT6
Brand: STMicroelectronics
SKU: STM32U5A5VJT6
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: STM32U5A5VJT6

Manufacturer:: STMicroelectronics

Category:: Microcontrollers

Package:: 100-LQFP

Datasheet:: STM32U5A5VJT6.pdf

Description:: IC MCU 32BIT 4MB FLASH 100LQFP

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Product details

Overview

STM32U5A5VJT6 from STMicroelectronics is an ultra-low-power Arm® Cortex®-M33 32-bit MCU with TrustZone® and FPU, delivering 240 DMIPS at 160 MHz. It integrates 4 MB Flash with ECC, 2.5 MB SRAM (with configurable ECC), LTDC and MIPI® DSI for display control, and hardware crypto accelerators including AES, PKA, and HASH. It targets secure, battery-powered HMI applications such as smart thermostats and portable medical monitors.

For engineers reviewing the STM32U5A5VJT6 datasheet, STM32U5A5VJT6 pinout, STM32U5A5VJT6 application, or STM32U5A5VJT6 equivalent, key selection criteria include its 150 nA Shutdown mode, dual 14-bit ADCs (2.5 Msps), Neo-Chrom GPU2D, TrustZone-certified secure boot, and LPBAM autonomous peripheral operation down to Stop 2 mode.

Technical Context

The STM32U5A5VJT6 implements a dual-bank Flash architecture enabling read-while-write operations and supports on-the-fly decryption of Octo-SPI external memories via OTFDEC. Its power architecture combines an embedded LDO and SMPS step-down converter with dynamic voltage scaling and switch-on-the-fly capability.

TrustZone security is implemented at the system level - securing memory regions (SRAM3, Flash banks), peripherals (SAI, SDMMC, OCTOSPI), and I/Os via GTZC - and enforced through RDP-based life-cycle management and secure hide-protection area (HDP) for root-of-trust boot. The device includes two independent 14-bit ADCs, one operating autonomously in Stop 2 mode.

Key Specifications

Parameter	Value and Actual Design Meaning
CPU Core	Arm Cortex-M33 with TrustZone, FPU, MPU, and DSP extensions - enables secure real-time control with hardware-isolated secure/non-secure worlds.
Max Clock / Performance	160 MHz / 240 DMIPS - achieved with 32-Kbyte ICACHE and ART Accelerator for zero-wait-state flash execution.
Memory	4-MB Flash (ECC, dual-bank RWW), 2.5-MB SRAM (configurable ECC allocation) - supports robust firmware updates and large buffer storage for graphics/audio.
Low-Power Modes	150 nA Shutdown, 480 nA Standby with RTC, 2 µA Stop 3 with 40-KB SRAM - enables multi-year battery life in always-on sensor or HMI edge nodes.
Graphics & Display	LTDC + MIPI DSI host (2 lanes @ 500 Mbit/s each) + Neo-Chrom GPU2D - drives high-resolution color displays with hardware-accelerated rotation, scaling, and texture mapping.
Security	PSA Level 3 & SESIP3 certified; TrustZone, HUK, SFI, TF-M support, DPA-resistant AES/PKA - meets requirements for secure firmware installation and OTA updates in regulated environments.
Analog Peripherals	2× 14-bit ADC (2.5 Msps, hardware oversampling), 12-bit DAC (2 ch), 2 op-amps with PGA, 2 ultra-low-power comparators - enables precision sensor acquisition and analog signal conditioning without wake-up latency.

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 17 (Pinout for LQFP100).

Pin/Terminal	Circuit Role	Design Meaning
VDD, VDDA, VDDIO2	Power supply inputs	Dedicated domains for core (1.71–3.6 V), analog (1.62–3.6 V), and I/O (1.65–3.6 V); enable independent noise isolation and low-dropout regulation.
PA0–PA15, PB0–PB15, etc.	General-purpose I/Os	Up to 156 fast I/Os; most 5V-tolerant; up to 14 support independent 1.08–3.6 V supply - allows mixed-voltage interface with sensors, displays, and legacy peripherals.
PC13–PC15	RTC-related pins	PC13 = RTC_OUT/ALARM; PC14/PC15 = 32.768 kHz LSE crystal - enables calendar-aware wake-up and tamper detection in VBAT mode.
PD0–PD1	MIPI DSI clock/data lanes	HS clock and data pair for MIPI DSI interface - supports high-speed, low-power display streaming up to 1 Gbit/s aggregate bandwidth.
PE2–PE7	LTDC data/control signals	24-bit RGB + HSYNC/VSYNC/DE - directly drives parallel LCD-TFT panels up to WXGA resolution without external controller.

Key Features

Feature	Design Value
LPBAM (Low-Power Background Autonomous Mode)	Enables DMA-driven peripheral chains (ADC→DMA→memory→DAC) without CPU intervention - reduces active time by >90% in sensor logging or audio preprocessing.
Neo-Chrom GPU2D	Hardware-accelerated 2D graphics engine supporting arbitrary-angle rotation, perspective-correct texture mapping, and alpha blending - cuts CPU load by ~70% in GUI rendering vs. software-only implementation.
OTFDEC (On-The-Fly Decryption)	Decrypts Octo-SPI external NOR/FRAM memory contents in real time using AES-128/256 - enables secure code execution from external memory without compromising performance or BOM cost.
CORDIC + FMAC coprocessors	Accelerates trigonometric (sin/cos/tan) and digital filter (IIR/FIR) computations - achieves 5× faster motor control loop execution and real-time FFT-based sound activity detection.
VBAT domain with 2-KB backup SRAM	Maintains RTC, 32×32-bit registers, and critical context during main power loss - ensures seamless resume after brown-out or battery swap in portable medical devices.

Applications

Smart Thermostat HMI

Portable ECG Monitor

Use Scenario: Wall-mounted HVAC controller with color touchscreen, wireless connectivity, and local data logging.

IC Role / Device Role / Timing Role: Main application processor managing GUI rendering (via LTDC+DSI), sensor fusion (ADC+OPAMP), secure OTA updates (TF-M), and ultra-low-power sleep scheduling (LPBAM).

Use Value: 18.5 µA/MHz Run mode and 480 nA Standby with RTC extend battery life to >5 years on two AA cells while maintaining responsive touch UI.

Use Scenario: Handheld clinical-grade ECG device with real-time waveform display, Bluetooth LE telemetry, and encrypted patient data storage.

IC Role / Device Role / Timing Role: Secure signal acquisition hub - synchronizing dual 14-bit ADCs, running CORDIC-based QRS detection, and encrypting data before transmission via SAES+PKA.

Use Value: Dual ADCs with hardware oversampling achieve <1 µV RMS noise floor; TrustZone isolates ECG algorithm from BLE stack, satisfying IEC 62304 Class C safety requirements.

Industrial Panel PC

Secure Access Terminal

Use Scenario: DIN-rail mounted HMI for factory automation with VGA+ display, CAN FD fieldbus, and local web server.

IC Role / Device Role / Timing Role: Graphics-capable controller interfacing with LTDC-driven panel, running FreeRTOS with multiple communication stacks (CAN FD, USB OTG, 7× USARTs).

Use Value: Neo-Chrom GPU2D renders animated process visuals at 60 fps; integrated SMPS reduces thermal footprint vs. discrete DC/DC, simplifying enclosure design.

Use Scenario: Physical access kiosk with capacitive touch, NFC reader, and biometric authentication.

IC Role / Device Role / Timing Role: Root-of-trust controller performing secure boot, fingerprint template encryption (AES+HUK), and tamper-monitored credential storage (TAMP+backup SRAM).

Use Value: PSA Level 3 certification validates resistance to physical probing and side-channel attacks; 96-bit unique ID enables device-specific key binding for PKI enrollment.

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 non-graphical secure IoT nodes (e.g., smart metering), not display-intensive HMIs.	Select when display subsystem is unnecessary and BOM cost reduction is prioritized over graphics throughput.
NXP i.MX RT685	Arm Cortex-M33 with DSP/FPU, but no TrustZone-certified secure boot; uses SECO subsystem instead; 1 MB Flash, 1 MB SRAM; no integrated DSI/LTDC.	Targets audio-centric edge AI (e.g., voice assistant), relying on external display controllers and software-based security.	Select when leveraging NXP's eIQ ML toolkit is essential and external display interface (e.g., LVDS) is acceptable.

Compared with STM32U5A5VJT6, the STM32U575ZIT6 sacrifices display capability and memory for lower cost and power, while the i.MX RT685 trades PSA-certified hardware security for broader ML toolchain support - making the U5A5VJT6 optimal for certified, graphics-rich, battery-constrained secure HMIs.

Availability

STM32U5A5VJT6 is available at Aetrix Electronics and suitable for smart building controls, portable medical diagnostics, industrial HMIs, and secure access terminals requiring stable component supply across long-lifecycle deployments.

Supply support for STM32U5A5VJT6 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.

The STM32U5 series is ST's flagship ultra-low-power secure MCU line, designed for battery-operated, safety- and security-critical edge devices demanding PSA Level 3 certification, rich graphics, and sub-µA sleep currents.

FAQ

What is the maximum operating temperature range for the STM32U5A5VJT6?

The STM32U5A5VJT6 is rated for operation from –40 °C to +125 °C ambient temperature. This extended grade is validated per ST's production data (DS13543 Rev 3, Section 5.3.1) and supports deployment in harsh industrial or automotive cabin environments without derating.

Does the STM32U5A5VJT6 support external memory interfaces beyond Octo-SPI?

Yes. In addition to two Octo-SPI interfaces, it supports an HSPI interface (up to 160 MHz), Flexible Static Memory Controller (FSMC) for SRAM/PSRAM/NOR/NAND/FRAM, and SDMMC v4.0 for e•MMC and SDIO cards - enabling flexible memory expansion for code, graphics assets, and data logging.

How does the LPBAM feature reduce system power consumption?

LPBAM enables autonomous peripheral operation - for example, configuring ADC to trigger DMA transfers into SRAM, then waking CPU only upon buffer full - without exiting Stop 2 mode. This eliminates CPU polling overhead and reduces active time, achieving up to 4× longer battery life in sensor logging applications.

Can the STM32U5A5VJT6 execute code directly from external Octo-SPI memory?

Yes, via the OTFDEC engine and XIP (eXecute-In-Place) capability. Code stored in encrypted external Octo-SPI NOR/FRAM is decrypted on-the-fly and executed directly, preserving internal Flash for firmware updates and eliminating need for RAM-based code staging.

STM32U5A5VJT6 Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Package/Case:: 100-LQFP

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:: 82

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 20x12/14b SAR; D/A 2x12b

Oscillator Type:: External, Internal

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:

STM32U5A5VJT6 FAQ

1.How can I place an order for STM32U5A5VJT6 through Aetrix?

Please submit a Request for Quotation (RFQ) for STM32U5A5VJT6 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 STM32U5A5VJT6 reliable?

The price and inventory of STM32U5A5VJT6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32U5A5VJT6 is usually 5 days.

3.What payment methods are accepted for STM32U5A5VJT6?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32U5A5VJT6 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for STM32U5A5VJT6?

STM32U5A5VJT6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your STM32U5A5VJT6 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 STM32U5A5VJT6?

For technical support, including STM32U5A5VJT6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32U5A5VJT6 requirements.

6.How does Aetrix verify that STM32U5A5VJT6 is sourced from the original manufacturer or authorized distributors?

All STM32U5A5VJT6 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 STM32U5A5VJT6 meets industry standards.

7.What is the process for return or replacement of STM32U5A5VJT6?

All STM32U5A5VJT6 units undergo pre-shipment inspection (PSI). If there is an issue with STM32U5A5VJT6, 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 STM32U5A5VJT6 part is unused and in its original packaging.

Return procedure for STM32U5A5VJT6:

1.Submit a request within 90 days.

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

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