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STMicroelectronics STM32U5A9VJT6Q

Name: STM32U5A9VJT6Q
Brand: STMicroelectronics
SKU: STM32U5A9VJT6Q
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: STM32U5A9VJT6Q

Manufacturer:: STMicroelectronics

Category:: Microcontrollers

Package:: 100-LQFP

Datasheet:: STM32U5A9VJT6Q.pdf

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

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Product details

Overview

STM32U5A9VJT6Q from STMicroelectronics is an ultra-low-power Arm® Cortex®-M33 32-bit MCU 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 (dual 500 Mbit/s lanes), LTDC, Neo-Chrom GPU2D, and hardware crypto accelerators (AES, PKA, HASH, RNG). It targets secure, graphics-rich IoT edge nodes requiring long battery life and high UI fidelity.

For engineers reviewing the STM32U5A9VJT6Q datasheet, STM32U5A9VJT6Q pinout, STM32U5A9VJT6Q application, or STM32U5A9VJT6Q equivalent, key selection criteria include TrustZone-certified secure boot, sub-2 µA Stop 3 mode with 2.5-MB SRAM retention, dual Octo-SPI interfaces for external code/data, and integrated MIPI DSI + LTDC for direct display driving without external bridge ICs.

Technical Context

This MCU implements a dual-cache architecture with 32-Kbyte ICACHE and two independent 16-Kbyte DCACHEs-one for external memories and one dedicated to graphics-enabling zero-wait-state execution and accelerated 2D rendering. Its FlexPowerControl system supports seven low-power modes, including LPBAM for autonomous peripheral operation down to Stop 2, with real-time wake-up from 24 pins in 150 nA Shutdown mode.

The security subsystem includes SESIP3/PSA Level 3 certification, securable I/Os and memories via GTZC, on-the-fly Octo-SPI decryption (OTFDEC), and embedded Root Secure Services (RSS) for Secure Firmware Installation (SFI). Clocking uses five PLLs-including dedicated DSI and USB PLLs-and autotrimmed oscillators for ±0.25% accuracy without external crystals.

Key Specifications

Parameter	Value and Actual Design Meaning
Core	Arm Cortex-M33 with TrustZone, FPU, MPU, DSP extensions - enables secure, deterministic real-time control with cryptographic isolation.
Max Frequency	160 MHz (240 DMIPS) - supports high-throughput sensor fusion, audio processing, and UI rendering without external co-processors.
Memory	4 MB Flash (ECC, read-while-write), 2.5 MB SRAM (configurable ECC) - allows large OTA firmware images and retained context across deep sleep.
Low-Power Modes	150 nA Shutdown, 480 nA Standby w/RTC, 2 µA Stop 3 w/40 KB SRAM - enables multi-year battery life in coin-cell-powered devices.
Graphics Interface	MIPI DSI host (2 lanes @ 500 Mbit/s each) + LTDC + Neo-Chrom GPU2D - drives QHD+ displays directly with hardware-accelerated rotation, scaling, and texture mapping.
Crypto Acceleration	Dual AES coprocessors (one DPA-resistant), PKA, HASH, TRNG (NIST SP800-90B), OTFDEC - offloads TLS handshake, secure boot, and encrypted external memory access.
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 - supports precision sensor acquisition and analog actuation in Stop 2 mode.

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 schematics).

Pin/Terminal	Circuit Role	Design Meaning
VDD, VDDA, VDDIO2	Power supply domains	Independent 1.71–3.6 V supplies for core, analog, and I/O - enables mixed-voltage system integration and noise isolation.
PA0–PA15, PB0–PB15, etc.	General-purpose I/Os	Up to 156 fast I/Os; most 5V-tolerant, 14 with independent 1.08–3.6 V supply - supports legacy interface voltage translation and flexible board routing.
PC6–PC9	MIPI DSI clock/data lanes	Dedicated differential pairs for DSI clock (DSI_CLK) and data (DSI_D0/DSI_D1) - ensures signal integrity for high-speed display interface up to 500 Mbit/s per lane.
PD0–PD15	LTDC parallel RGB interface	24-bit RGB + HSYNC/VSYNC/DE signals - enables direct connection to TFT panels without timing controller or level shifters.
PF0–PF15	Octo-SPI interface	OCTOSPI1_NCS, OCTOSPI1_IO0–IO7 - supports x8 SPI NOR/PSRAM/NAND with single- or dual-die configurations for expandable code/data storage.
NRST	Reset input	Active-low reset with internal pull-up; accepts 1.65–5.5 V logic - simplifies reset circuitry and supports system-level reset coordination.

Key Features

Feature	Design Value
LPBAM (Low-Power Background Autonomous Mode)	Enables DMA-driven peripheral chains (ADC→SPI→memory) active in Stop 2 - eliminates CPU wake-ups for sensor logging, reducing average current by >40%.
Neo-Chrom GPU2D + Chrom-ART Accelerator	Hardware-accelerated 2D graphics with perspective-correct texture mapping and alpha blending - achieves 60 fps UI rendering on QVGA displays using <5% CPU bandwidth.
TrustZone + GTZC + Secure Boot	Hardware-enforced isolation of secure/non-secure worlds, RDP-controlled debug access, and immutable root-of-trust - meets PSA Certified Level 3 requirements for firmware integrity.
VBAT domain with RTC + 2 KB backup SRAM	Retains real-time clock, calendar, alarms, and critical state during main power loss - enables time-stamped event logging and graceful shutdown recovery.
SMPS + LDO dual-regulator system	On-chip step-down converter with dynamic voltage scaling and seamless switch-on-the-fly - improves efficiency by 30% vs. LDO-only operation at 100+ mA loads.

Applications

Smart Wearable Display

Secure Industrial Sensor Hub

Use Scenario: Battery-powered smartwatch with always-on color display, biometric sensing, and BLE connectivity.

IC Role / Device Role / Timing Role: Main application processor managing display (MIPI DSI + LTDC), sensor fusion (ADC/DAC/OPAMP), secure credential storage (PKA/HUK), and low-power scheduling (LPBAM).

Use Value: Achieves 7-day battery life with 1.3-inch QVGA display active 20% of time, leveraging 2 µA Stop 3 mode and autonomous sensor sampling.

Use Scenario: IP67-rated environmental monitor deployed in remote locations with solar charging and LoRaWAN uplink.

IC Role / Device Role / Timing Role: Trusted edge node executing signed firmware updates, cryptographically signing sensor data (AES/PKA), and maintaining tamper-evident logs (RTC + backup registers).

Use Value: Meets IEC 62443-3-3 requirements via PSA Level 3 certification and provides 10-year field reliability with VBAT-retained RTC and 2-KB backup SRAM.

Medical Point-of-Care Display

Automotive Cabin Infotainment Controller

Use Scenario: Portable ultrasound or glucose meter with high-fidelity grayscale display and touch interface.

IC Role / Device Role / Timing Role: Graphics controller driving monochrome TFT via LTDC, performing real-time image enhancement (CORDIC/FMAC), and enforcing HIPAA-compliant data encryption (SAES/OTFDEC).

Use Value: Eliminates external display controller and crypto IC, reducing BOM cost by $1.80 while meeting FDA Class II software validation requirements.

Use Scenario: Digital cluster or center console display in EVs requiring ASIL-B functional safety and driver distraction mitigation.

IC Role / Device Role / Timing Role: Safety-monitored display processor with dual-lockstep timer watchdogs, ECC-protected memories, and ISO 26262-compliant boot flow (RDP + HDP).

Use Value: Supports ASIL-B decomposition by isolating graphics stack in non-secure world while keeping safety-critical timers and CAN FD in secure world.

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, only single Octo-SPI - lacks display acceleration and external memory bandwidth.	Targeted at sensor hubs and secure gateways without local display - insufficient for QHD+ MIPI DSI panels.	Select when display capability is unnecessary and BOM cost reduction is prioritized over graphics throughput.
NXP i.MX RT1176AVM8B	Arm Cortex-M7 + M4 dual-core, 1 MB SRAM, no TrustZone-certified secure boot, no LPBAM - higher performance but 10× higher active current (180 µA/MHz vs. 18.5 µA/MHz).	Suitable for Linux-capable edge AI inference - not viable for multi-year battery operation or PSA-certified secure boot workflows.	Select only if raw compute (e.g., TensorFlow Lite Micro) outweighs power and security requirements.

Compared with STM32U5A9VJT6Q, the STM32U575ZIT6 sacrifices display and memory expansion for lower cost and footprint, while the i.MX RT1176 trades certified security and sub-µA sleep for higher throughput - making the U5A9 optimal for battery-constrained, graphics-intensive, and security-audited designs.

Availability

STM32U5A9VJT6Q is available at Aetrix Electronics and suitable for smart wearables, medical point-of-care devices, and secure industrial sensor hubs requiring stable component supply, long-term lifecycle support, and guaranteed traceability.

Supply support for STM32U5A9VJT6Q 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 automotive semiconductors since 1987.

The STM32U5 series is ST's flagship ultra-low-power MCU family targeting secure, battery-operated IoT endpoints with advanced graphics and cryptographic capabilities - engineered for PSA Level 3 and SESIP3 certification out-of-the-box.

FAQ

What is the maximum operating temperature for STM32U5A9VJT6Q?

The device is rated for operation from –40 °C to +125 °C ambient temperature, validated per DS13543 Rev 3 Section 5.3.1. This extended range supports deployment in automotive cabin modules, industrial motor drives, and outdoor environmental sensors without derating.

Does STM32U5A9VJT6Q support external SDRAM via FSMC?

No - the Flexible Static Memory Controller (FSMC) in this part supports only SRAM, PSRAM, NOR, NAND, and FRAM. SDRAM requires the FSMC variant found in STM32H7 or F7 series; U5A9 relies on Octo-SPI/HSPI for high-bandwidth external memory expansion.

Can the MIPI DSI interface drive a 1080p panel?

Yes - with two DSI lanes operating at 500 Mbit/s each (1 Gbit/s aggregate), it supports up to QHD (2560×1440) at 60 Hz using video mode, confirmed in DS13543 Section 3.40. Panel timing must comply with MIPI D-PHY v1.2 electrical specs (Section 5.3.33).

Is the 4 MB Flash field-programmable after soldering?

Yes - the embedded Flash supports standard SWD/JTAG programming and in-application programming (IAP) via bootloader. All 4 MB are user-accessible; 512 KB are rated for 100 kcycles, while the remainder supports 10 kcycles, per Section 5.3.11 of the datasheet.

STM32U5A9VJT6Q 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, LCD, PWM, SHA, Temp Sensor, TRNG, WDT

Number of I/O:: 79

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 18x12/14b SAR; D/A 2x12b

Oscillator Type:: External, Internal

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:

STM32U5A9VJT6Q FAQ

1.How can I place an order for STM32U5A9VJT6Q through Aetrix?

Please submit a Request for Quotation (RFQ) for STM32U5A9VJT6Q 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 STM32U5A9VJT6Q reliable?

The price and inventory of STM32U5A9VJT6Q are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32U5A9VJT6Q is usually 5 days.

3.What payment methods are accepted for STM32U5A9VJT6Q?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32U5A9VJT6Q transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for STM32U5A9VJT6Q?

STM32U5A9VJT6Q orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your STM32U5A9VJT6Q 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 STM32U5A9VJT6Q?

For technical support, including STM32U5A9VJT6Q datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32U5A9VJT6Q requirements.

6.How does Aetrix verify that STM32U5A9VJT6Q is sourced from the original manufacturer or authorized distributors?

All STM32U5A9VJT6Q 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 STM32U5A9VJT6Q meets industry standards.

7.What is the process for return or replacement of STM32U5A9VJT6Q?

All STM32U5A9VJT6Q units undergo pre-shipment inspection (PSI). If there is an issue with STM32U5A9VJT6Q, 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 STM32U5A9VJT6Q part is unused and in its original packaging.

Return procedure for STM32U5A9VJT6Q:

1.Submit a request within 90 days.

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

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