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STMicroelectronics STM32H523VCI6
- Part No.:
- STM32H523VCI6
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- -
- Datasheet:
-
STM32H523VCI6.pdf
- Description:
- IC MCU 32BIT 256KB FLSH 100UFBGA
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Inventory:2,513
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Product details
Overview
STM32H523VCI6 from STMicroelectronics is a 32-bit Arm® Cortex®-M33 microcontroller with TrustZone® security, FPU, and 250 MHz max clock frequency. It integrates 512 Kbytes of ECC-protected flash (dual-bank read-while-write), 272 Kbytes of SRAM (including 80-Kbyte ECC-protected SRAM2), and supports secure firmware installation (SFI) with PSA Level 3 and SESIP3 certification. It targets secure industrial edge nodes requiring real-time control, cryptographic acceleration, and low-power operation.
For engineers reviewing the STM32H523VCI6 datasheet, STM32H523VCI6 pinout, STM32H523VCI6 application, or STM32H523VCI6 equivalent, key selection considerations include TrustZone-enforced peripheral isolation, dual DMA controllers for offloading, Octo-SPI interface for serial PSRAM/NOR, and dual 12-bit ADCs delivering up to 5 Msps - all in a 100-pin LQFP package with 1.71–3.6 V supply range.
Technical Context
The STM32H523VCI6 implements Armv8-M mainline security with configurable SAU regions and TrustZone-aware peripherals including GTZC-managed memory, RCC, GPIO, and FMC. Its ART Accelerator includes 8-Kbyte instruction cache and 4-Kbyte data cache to enable zero-wait-state execution from flash and external memories.
It features two dual-port GPDMA controllers supporting scatter-gather and linked-list transfers, plus dual 12-bit ADCs with hardware oversampling and flexible trigger routing. The security subsystem integrates PKA for ECDSA verification, HASH (SHA-1/2/3), NIST SP800-90B-compliant TRNG, and secure boot via unique entry point and HDP protection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M33 with TrustZone, FPU, MPU, 375 DMIPS @ 250 MHz |
| Memory | 512 Kbytes flash (ECC, dual-bank RWW), 272 Kbytes SRAM (80-Kbyte SRAM2 with ECC) |
| Security | PSA Level 3 & SESIP3 certified; PKA, HASH, TRNG, SFI, secure debug authentication |
| Analog | Two 12-bit ADCs (5 Msps), one 12-bit dual-channel DAC, digital temperature sensor (DTS) |
| Timers | Ten 16-bit timers (2 low-power), two 32-bit timers with quadrature encoder input, two watchdogs |
| Communication | Up to 3 I²C (Fm+), 2 I³C, 6 UART/USART (incl. LPUART), 4 SPI/I²S, 2 FDCAN, USB FS host/device, UCPD |
| Package | LQFP100 (14 × 14 mm), 100-pin, ECOPACK2 compliant |
Pinout & Package
LQFP100 (14 × 14 mm, 0.5 mm pitch) with exposed thermal pad; 100 leads, RoHS-compliant, ECOPACK2.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDIO2 | Power supply inputs | Separate domains for digital core (1.71–3.6 V), analog (1.71–3.6 V), and I/O (1.71–3.6 V); supports independent voltage scaling |
| VSS, VSSA, VSSIO2 | Ground returns | Dedicated analog and I/O ground planes minimize noise coupling into ADC/DAC paths |
| PA0–PA15, PB0–PB15, etc. | General-purpose I/Os | Up to 112 fast I/Os; most 5 V-tolerant; ten support independent 1.08 V supply for ultra-low-voltage interfaces |
| NRST | Active-low reset input | Asynchronous reset with internal pull-up; supports external reset supervision and tamper detection linkage |
| BOOT0 | Boot mode selection | Configures boot source (system memory, flash, or FMC) at power-on; TrustZone state (TZEN) determines valid boot modes |
| OSC_IN / OSC_OUT | External crystal oscillator terminals | Supports 4–50 MHz HSE crystal; enables precise clocking for USB, CAN, and audio timing-critical peripherals |
Key Features
| Feature | Design Value |
|---|---|
| TrustZone-enforced peripheral isolation | Eight configurable SAU regions enforce secure/non-secure access boundaries across memory, GPIO, timers, and communication peripherals |
| Secure firmware installation (SFI) | Enables authenticated, encrypted firmware updates without exposing keys or plaintext images in non-secure world |
| ART Accelerator with dual cache | 8-Kbyte ICACHE + 4-Kbyte DCACHE eliminate wait states for flash and external memory accesses, improving deterministic real-time response |
| Octo-SPI interface | Supports x1/x2/x4/x8 I/O modes for serial PSRAM, NOR/NAND, HyperFlash, and HyperRAM - enabling cost-effective external memory expansion |
| Dual 12-bit ADC with hardware oversampling | 5 Msps aggregate sampling rate with programmable resolution up to 16 bits (via oversampling), reducing need for external precision ADCs |
Applications
| Industrial PLC Edge Node | Secure Smart Meter |
|---|---|
Use Scenario: Real-time I/O monitoring and fieldbus protocol bridging (Modbus RTU over UART, CANopen over FDCAN) in compact DIN-rail-mounted controllers. IC Role / Device Role / Timing Role: Central controller executing deterministic control loops, managing secure OTA updates, and isolating metering firmware from communication stacks via TrustZone. Use Value: Dual 12-bit ADCs directly digitize current/voltage sensors at 5 Msps; Octo-SPI connects to external FRAM for tamper-proof event logging with 100K-cycle endurance. | Use Scenario: Revenue-grade electricity meter with anti-tampering, secure key storage, and remote firmware validation. IC Role / Device Role / Timing Role: Secure metering SoC handling metrology calculations, cryptographic signing of consumption data, and enforcing secure boot chain via HDP and SFI. Use Value: PSA Level 3-certified security stack validates firmware signatures using PKA; TRNG and HASH accelerate AES-GCM encryption for secure DLMS/COSEM communications. |
| Medical Sensor Hub | Automotive Body Control Module (BCM) |
Use Scenario: Wearable or bedside device aggregating ECG, SpO₂, and temperature data with local AI inference and HIPAA-compliant telemetry upload. IC Role / Device Role / Timing Role: Low-power secure hub running TF-M-based trusted firmware, managing sensor fusion, and encrypting data before transmission via LPUART/USB. Use Value: 272-Kbyte SRAM enables on-device neural network inference buffers; LPUART and dual low-power timers sustain sub-1 µA Stop mode while maintaining BLE wake-up capability. | Use Scenario: Gateway module controlling lighting, door locks, and HVAC via LIN, CAN, and PWM outputs in 12 V automotive systems. IC Role / Device Role / Timing Role: Robust body controller with functional safety support (via lockstep-capable peripherals), voltage monitoring, and secure diagnostic access. Use Value: FDCAN controllers handle ISO 11898-1 communication; VBAT-supplied RTC and 32 backup registers retain configuration during battery disconnect; POR/PVD/BOR ensure reliable startup under load dump conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar secure MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32H563VIT6 | Higher flash (2 Mbytes), larger SRAM (1 Mbyte), adds Ethernet MAC and crypto accelerator (AES-GCM, SHA-3) | Better suited for gateway-class devices requiring wired connectivity and higher throughput crypto | Select when Ethernet or >1 Mbyte code footprint is required; same LQFP100 package and pinout |
| STM32L562VEY6Q | Lower max frequency (160 MHz), smaller flash (512 Kbytes), no Octo-SPI, but lower active current (68 µA/MHz) | Optimized for battery-powered endpoints where ultra-low power dominates over compute density | Select for sub-10 µA Stop mode with RTC and 32 KB SRAM retention; lacks TrustZone peripheral isolation granularity of H5 series |
Compared with STM32H563VIT6, the STM32H523VCI6 trades Ethernet and extended crypto for lower BOM cost and identical package compatibility; versus STM32L562VEY6Q, it delivers 56% higher DMIPS and Octo-SPI expandability at the expense of ~2× active power - making it optimal for resource-constrained yet performance-sensitive secure edge nodes.
Availability
STM32H523VCI6 is available at Aetrix Electronics and suitable for industrial PLC edge nodes, secure smart meters, medical sensor hubs, and automotive body control modules requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for STM32H523VCI6 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 STM32H5 series is ST's high-security, high-performance MCU line targeting PSA Level 3-certified applications in industrial edge, energy metering, and medical IoT - emphasizing hardware-enforced isolation, cryptographic acceleration, and scalable memory architecture.
FAQ
What is the maximum operating frequency and corresponding DMIPS rating of the STM32H523VCI6?
The STM32H523VCI6 operates at up to 250 MHz with an Arm Cortex-M33 core, achieving 375 DMIPS (Dhrystone 2.1). This performance is sustained across its full 1.71–3.6 V supply range and validated per ST's DS14540 Rev 3 datasheet, with ART Accelerator caches ensuring zero-wait-state execution from flash memory.
Does the STM32H523VCI6 support secure boot and firmware updates out of the box?
Yes - it includes root-of-trust via unique boot entry, secure hide protection area (HDP), and Secure Firmware Installation (SFI). It supports TF-M-based trusted firmware execution and authenticated, encrypted firmware updates without exposing keys or plaintext in non-secure world, validated against PSA Level 3 and SESIP3 certification requirements.
Which external memory interfaces does the STM32H523VCI6 provide, and what are their key capabilities?
The device integrates a Flexible Memory Controller (FMC) supporting SRAM, PSRAM, FRAM, and NOR/NAND with up to 16-bit data bus, plus one Octo-SPI interface supporting x1/x2/x4/x8 I/O modes for serial PSRAM, HyperRAM, and NOR/NAND. Octo-SPI enables high-speed, low-pin-count expansion ideal for cost-sensitive edge nodes requiring >512 Kbytes external memory.
What are the key low-power features relevant for battery-operated applications?
It offers Sleep, Stop, and Standby modes with VBAT-supplied RTC and 32 backup registers. Two low-power 16-bit timers remain active in Stop mode, and LPUART supports asynchronous wake-up. The 2-Kbyte backup SRAM retains data in lowest power modes, while 10 I/Os support independent 1.08 V supply for interfacing with ultra-low-voltage peripherals.
STM32H523VCI6 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- -
- Series:
- -
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
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- Core Size:
- -
- Speed:
- -
- Connectivity:
- -
- Peripherals:
- -
- Number of I/O:
- -
- Program Memory Size:
- -
- Program Memory Type:
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- EEPROM Size:
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- RAM Size:
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- Voltage - Supply (Vcc/Vdd):
- -
- Data Converters:
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STM32H523VCI6 FAQ
1.How can I place an order for STM32H523VCI6 through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32H523VCI6 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 STM32H523VCI6 reliable?
The price and inventory of STM32H523VCI6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32H523VCI6 is usually 5 days.
3.What payment methods are accepted for STM32H523VCI6?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32H523VCI6 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32H523VCI6?
STM32H523VCI6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32H523VCI6 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 STM32H523VCI6?
For technical support, including STM32H523VCI6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32H523VCI6 requirements.
6.How does Aetrix verify that STM32H523VCI6 is sourced from the original manufacturer or authorized distributors?
All STM32H523VCI6 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 STM32H523VCI6 meets industry standards.
7.What is the process for return or replacement of STM32H523VCI6?
All STM32H523VCI6 units undergo pre-shipment inspection (PSI). If there is an issue with STM32H523VCI6, 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 STM32H523VCI6 part is unused and in its original packaging.
Return procedure for STM32H523VCI6:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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