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STMicroelectronics STM32H523VEI6
- Part No.:
- STM32H523VEI6
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 100-UFBGA
- Datasheet:
-
STM32H523VEI6.pdf
- Description:
- IC MCU 32BIT 512KB FLSH 100UFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:200
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Product details
Overview
STM32H523VEI6 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, 272 Kbytes of SRAM (including 80-Kbyte ECC-secured SRAM2), and supports dual-bank read-while-write operation. Used in secure industrial gateways requiring real-time control, cryptographic acceleration, and low-power connectivity.
For engineers reviewing the STM32H523VEI6 datasheet, STM32H523VEI6 pinout, STM32H523VEI6 application, or STM32H523VEI6 equivalent, key selection criteria include TrustZone-enforced peripheral isolation, dual DMA controllers for offloading crypto/audio tasks, Octo-SPI interface for serial PSRAM/NAND, FDCAN support for automotive diagnostics, and PSA Level 3/SESIP3 certification for firmware integrity.
Technical Context
The STM32H523VEI6 implements Armv8-M mainline security with configurable SAU regions and TrustZone-aware peripherals including GTZC-managed memory mapping, secure debug authentication, and hardware root-of-trust via HDP and unique boot entry. Its ART Accelerator includes 8-Kbyte instruction cache and 4-Kbyte data cache to sustain zero-wait-state execution from flash and external memories.
Security functions are tightly coupled with runtime enforcement: public key accelerator (PKA) enables ECDSA signature verification; HASH unit supports SHA-1/SHA-2/SHA-3; NIST SP800-90B-compliant TRNG feeds secure firmware installation (SFI); and tamper detection activates active protection on physical intrusion events.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M33 with TrustZone, FPU, MPU, up to 250 MHz (375 DMIPS) |
| Flash Memory | 512 Kbytes embedded flash with ECC, two banks, read-while-write capability |
| SRAM | 272 Kbytes total: 80-Kbyte SRAM2 with ECC, 2-Kbyte backup SRAM, 2-Kbyte OTP |
| Security Certification | PSA Certified Level 3 and SESIP3 assurance target for secure firmware lifecycle |
| Peripherals | 2× FDCAN, 3× I²C (Fm+), 2× I³C, 6× UART/LPUART, 4× SPI/I²S, Octo-SPI, SDMMC, USB FS host/device, UCPD |
| ADC/DAC | Two 12-bit ADCs (up to 5 Msps), one 12-bit dual-channel DAC, digital temperature sensor (DTS) |
| Package | LQFP100 (14 × 14 mm, 0.5 mm pitch), RoHS-compliant ECOPACK2 |
Pinout & Package
LQFP100 package with 100 leads, 14 × 14 mm body size, 0.5 mm lead pitch, and exposed thermal pad. Pinout validated per DS14540 Rev 3 Section 4.1–4.2 (pin/ball definition table) and Table 13.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDIO2 | Power supply inputs | 1.71–3.6 V digital/analog core and I/O domain supplies; VDDIO2 supports independent 1.08–3.6 V I/O rail |
| PA0–PA15, PB0–PB15, etc. | General-purpose I/Os | Up to 112 fast GPIOs; most 5 V-tolerant; ten support independent 1.08 V supply for ultra-low-voltage interfaces |
| NRST | Reset input | Active-low reset with internal pull-up; supports external reset assertion and programmable reset source filtering |
| BOOT0 | Boot mode selection | Configures boot source (system memory, flash, or SRAM); behavior differs based on TrustZone enable state (TZEN = 0xB4 or 0xC3) |
| PC13–PC15 | RTC-related pins | PC13 = RTC_OUT/TSK, PC14/PC15 = 32.768 kHz LSE crystal oscillator connections with built-in load capacitance |
Key Features
| Feature | Design Value |
|---|---|
| TrustZone-enforced peripheral isolation | Eight configurable SAU regions enforce secure/non-secure access boundaries for memory-mapped peripherals and SRAM banks |
| Secure firmware upgrade | Hardware-accelerated TF-M integration enables authenticated, encrypted over-the-air updates with rollback protection |
| Octo-SPI interface | Supports x1/x2/x4/x8 SDR/DDR modes for serial PSRAM, NOR/NAND, HyperFlash, and HyperRAM with memory-mapped execution |
| Dual DMA controllers | Two dual-port GPDMA units with FIFO reduce CPU load during concurrent crypto, ADC, and audio transfers |
| Low-power timer operation | Two LPTIMs retain full functionality in Stop mode, enabling sub-microamp wake-up timing for sensor polling |
Applications
| Industrial PLC Controller | Secure Edge Gateway |
|---|---|
Use Scenario: Real-time logic execution and fieldbus communication in factory automation cabinets with ambient temperatures up to 85°C. IC Role / Device Role / Timing Role: Main controller executing deterministic ladder logic, managing Modbus TCP/RTU over multiple UARTs and FDCAN, and synchronizing I/O scan cycles via SysTick and advanced timers. Use Value: 250 MHz Cortex-M33 + FPU delivers >3× faster floating-point motion control math vs. legacy M4 parts; TrustZone isolates firmware update partition from runtime logic space. | Use Scenario: Secure aggregation of BLE/Zigbee sensor data and TLS-encrypted cloud upload in smart building nodes. IC Role / Device Role / Timing Role: Root-of-trust anchor running TF-M, performing ECDSA signature verification on OTA payloads, and accelerating AES-GCM encryption via PKA+HASH+DMA offload. Use Value: PSA Level 3 certification validates secure boot chain; Octo-SPI enables local firmware staging in external PSRAM without flash wear-out concerns. |
| Medical Diagnostic Interface | Automotive Telematics Unit |
Use Scenario: Portable ultrasound front-end interfacing with analog signal chain and HDMI-CEC display control. IC Role / Device Role / Timing Role: High-speed data acquisition hub using dual 12-bit ADCs at 5 Msps, driving parallel LCD via PSSI, and managing time-critical CEC commands with dedicated timer-triggered ISR. Use Value: 80-Kbyte ECC SRAM2 ensures reliable storage of calibration coefficients; DTS monitors die temperature to dynamically adjust ADC gain and offset compensation. | Use Scenario: In-vehicle diagnostics and firmware reprogramming via UDS over FDCAN bus in ADAS domain controllers. IC Role / Device Role / Timing Role: Secure bootloader and diagnostic application processor handling ISO 14229 UDS services, CAN FD message filtering, and secure key provisioning via UCPD Type-C PD negotiation. Use Value: Dual FDCAN controllers allow simultaneous vehicle network monitoring and service port access; VBAT-backed 32 registers preserve fault logs across ignition cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar secure MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32H563VIT6 | Same core, 2 MB flash, 1 MB RAM, adds Ethernet MAC and USB HS; no Octo-SPI | Better suited for gateway-class devices needing wired LAN and high-throughput USB streaming | Select when Ethernet or USB HS bandwidth outweighs need for serial memory expansion |
| STM32U575ZIT6 | Cortex-M33 at 160 MHz, 2 MB flash, 1 MB RAM, lower power profile, lacks FDCAN and Octo-SPI | Optimized for battery-powered endpoints where crypto throughput and CAN diagnostics are secondary | Choose for ultra-low-power sensor hubs requiring PSA Level 3 but not automotive-grade CAN or external memory scalability |
Compared with STM32H563VIT6 and STM32U575ZIT6, the STM32H523VEI6 uniquely balances mid-range memory (512 KB flash), Octo-SPI expandability, dual FDCAN, and PSA Level 3 certification-making it optimal for cost-sensitive, security-critical edge nodes needing flexible external memory and automotive diagnostics without Ethernet overhead.
Availability
STM32H523VEI6 is available at Aetrix Electronics and suitable for industrial PLC controllers, secure edge gateways, medical diagnostic interfaces, and automotive telematics units requiring stable component supply across multi-year production cycles.
Supply support for STM32H523VEI6 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 targets high-assurance embedded systems demanding PSA-certified security, real-time determinism, and scalable memory architecture-specifically engineered for secure industrial control, edge AI inference, and automotive functional safety extensions.
FAQ
What is the maximum operating frequency and corresponding performance metric?
The STM32H523VEI6 operates at up to 250 MHz, delivering 375 DMIPS (Dhrystone 2.1) and 1023 CoreMark® (4.092 CoreMark®/MHz). This performance is sustained with zero-wait-state execution enabled by the 8-Kbyte instruction cache (ART Accelerator), even when fetching from internal flash or external Octo-SPI memory.
Does STM32H523VEI6 support secure firmware updates over-the-air?
Yes-it supports secure firmware upgrades via TF-M (Trusted Firmware-M), leveraging hardware features including public key accelerator (PKA) for ECDSA signature verification, HASH engine for SHA-2/SHA-3 integrity checks, and secure hide protection area (HDP) to isolate update staging partitions from runtime code.
Which external memory interfaces does STM32H523VEI6 provide?
The device provides three external memory interfaces: Flexible Memory Controller (FMC) supporting SRAM, PSRAM, FRAM, NOR/NAND with up to 16-bit data bus; Octo-SPI supporting x1/x2/x4/x8 SDR/DDR modes for serial PSRAM/NAND/NOR/HyperFlash; and SD/SDIO/MMC interface for removable storage cards.
What are the key security certifications and how are they implemented?
STM32H523VEI6 achieves PSA Certified Level 3 and SESIP3 certification. Implementation includes Arm TrustZone with eight SAU regions, secure debug authentication, hardware root-of-trust (unique boot entry + HDP), SFI (Secure Firmware Installation), and tamper detection with active response-validated through third-party lab testing against defined threat models.
STM32H523VEI6 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 100-UFBGA
- Series:
- STM32H5
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- ARM® Cortex®-M33
- Core Size:
- 32-Bit
- Speed:
- 250MHz
- Connectivity:
- CANbus, FIFO, I2C, IrDA, LINbus, MMC/SD/SDIO, SMBus, SPI, UART/USART, USB
- Peripherals:
- Brown-out Detect/Reset, DMA, I2S, POR, PWM, WDT
- Number of I/O:
- 80
- Program Memory Size:
- 512KB (512K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 272K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.71V ~ 3.6V
- Data Converters:
- A/D 16x10b SAR
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32H523VEI6 FAQ
1.How can I place an order for STM32H523VEI6 through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32H523VEI6 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 STM32H523VEI6 reliable?
The price and inventory of STM32H523VEI6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32H523VEI6 is usually 5 days.
3.What payment methods are accepted for STM32H523VEI6?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32H523VEI6 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32H523VEI6?
STM32H523VEI6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32H523VEI6 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 STM32H523VEI6?
For technical support, including STM32H523VEI6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32H523VEI6 requirements.
6.How does Aetrix verify that STM32H523VEI6 is sourced from the original manufacturer or authorized distributors?
All STM32H523VEI6 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 STM32H523VEI6 meets industry standards.
7.What is the process for return or replacement of STM32H523VEI6?
All STM32H523VEI6 units undergo pre-shipment inspection (PSI). If there is an issue with STM32H523VEI6, 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 STM32H523VEI6 part is unused and in its original packaging.
Return procedure for STM32H523VEI6:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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