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STMicroelectronics STM32H523VET6
- Part No.:
- STM32H523VET6
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
STM32H523VET6.pdf
- Description:
- IC MCU 32BIT 512KB FLASH 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,193
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Product details
Overview
STM32H523VET6 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 SRAM2), and supports dual-bank read-while-write operation. Designed for secure embedded control in industrial gateways and IoT edge nodes requiring certified firmware integrity and real-time responsiveness.
For engineers reviewing the STM32H523VET6 datasheet, STM32H523VET6 pinout, STM32H523VET6 application, or STM32H523VET6 equivalent, key selection considerations include TrustZone-enforced peripheral isolation, 2× dual-port DMA controllers, Octo-SPI interface for serial PSRAM/NAND, FDCAN support, and PSA Level 3/SESIP3 security certification.
Technical Context
The device implements Armv8-M mainline security with configurable SAU regions and TrustZone-aware peripherals including GTZC-managed memory mapping, secure boot via HDP, and authenticated debug lifecycle. Its ART Accelerator includes 8-Kbyte instruction cache and 4-Kbyte data cache to eliminate wait states during flash execution and external memory access.
Security architecture integrates public key accelerator (PKA) for ECDSA verification, HASH (SHA-1/SHA-2/SHA-3), NIST SP800-90B-compliant TRNG, and secure firmware installation (SFI) with TF-M support - enabling root-of-trust establishment and over-the-air update validation without external co-processors.
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, two banks, RWW), 272 Kbytes SRAM (80-Kbyte SRAM2 with ECC) |
| Clocks | Internal: 64 MHz HSI, 48 MHz HSI48, 4 MHz CSI, 32 kHz LSI; External: 4–50 MHz HSE, 32.768 kHz LSE |
| Security | PSA Level 3 & SESIP3 certified; SAU-configurable memory regions; secure debug authentication |
| Peripherals | 2× FDCAN, 3× I²C Fm+, 2× I³C, 6× USART/LPUART, 4× SPI/I²S, Octo-SPI, SDMMC, USB FS host/device, UCPD |
| ADC/DAC | Two 12-bit ADCs (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 STMicroelectronics DS14540 Rev 3 Section 4.1–4.2 (pages 58–78).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDIO2 | Power supply inputs | 1.71–3.6 V digital/analog/core supply; VDDIO2 supports independent 1.08–3.6 V I/O rail |
| VSS, VSSA | Ground references | Digital/analog ground separation required for noise-sensitive analog performance |
| NRST | Active-low reset input | Asynchronous reset with internal pull-up; accepts 1.65–5.5 V logic levels |
| PA0–PA15, PB0–PB15, etc. | General-purpose I/Os | Up to 112 fast GPIOs; most 5 V-tolerant; up to 10 support independent low-voltage I/O (1.08 V) |
| PC13–PC15 | RTC-related functions | PC13 = RTC_OUT/TSK, PC14/PC15 = 32.768 kHz crystal oscillator pins |
| PD0–PD1 | OCTOSPI clock/data | Octo-SPI interface pins supporting hyperflash, PSRAM, and serial NAND/NOR |
| PE2–PE7 | FDCAN1/FDCAN2 | Dedicated CAN FD transceiver interface with integrated TX/RX lines and bus fault protection |
Key Features
| Feature | Design Value |
|---|---|
| TrustZone-enforced peripheral isolation | GTZC controller enforces secure/non-secure access to memories and peripherals via SAU configuration |
| Secure boot with HDP | Hardware-protected hide area prevents unauthorized access to boot code and cryptographic keys |
| Octo-SPI interface | Single 8-line interface supporting x1/x2/x4/x8 modes for high-bandwidth serial memory expansion |
| Dual-port DMA controllers | Two independent GPDMA units with FIFO reduce CPU load during concurrent peripheral transfers |
| Low-power timer in Stop mode | LPTIM1/LPTIM2 operate at 32 kHz in Stop mode for precise wake-up timing without full MCU restart |
Applications
| Industrial PLC Controller | Secure IoT Edge Gateway |
|---|---|
Use Scenario: Real-time motion control and fieldbus communication in compact programmable logic controllers. IC Role / Device Role / Timing Role: Primary application processor executing deterministic control loops, managing FDCAN/UART fieldbus interfaces, and handling safety-critical I/O via TrustZone-isolated peripherals. Use Value: 250 MHz Cortex-M33 + FPU enables sub-millisecond PID loop execution; dual-bank flash allows seamless firmware updates without runtime interruption. | Use Scenario: Secure data aggregation and protocol translation between legacy sensors and cloud platforms in smart building infrastructure. IC Role / Device Role / Timing Role: Root-of-trust anchor performing authenticated boot, TLS offload via PKA/HASH, and encrypted local storage using SRAM2 ECC and flash ECC. Use Value: PSA Level 3 certification validates hardware-enforced security boundaries; Octo-SPI enables local PSRAM caching for bursty sensor data buffering. |
| Medical Diagnostic Handheld | USB-C Power Delivery Hub |
Use Scenario: Portable ultrasound or ECG device requiring low-power operation, analog signal acquisition, and regulatory-compliant firmware integrity. IC Role / Device Role / Timing Role: Main controller managing dual 12-bit ADCs (5 Msps), DAC-driven reference generation, and USB Full-Speed data streaming with crystal-less operation. Use Value: Integrated VREFBUF and temperature-compensated DTS ensure stable analog measurement accuracy across battery voltage and ambient drift. | Use Scenario: Multi-port USB-C hub with power delivery negotiation, display alt-mode switching, and embedded policy engine. IC Role / Device Role / Timing Role: UCPD controller coordinating PD communication, Type-C port management, and HDMI-CEC signaling while enforcing secure policy updates. Use Value: Dedicated UCPD peripheral with hardware CRC and message filtering eliminates need for external PD controller; TrustZone isolates policy engine from application firmware. |
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), additional crypto accelerators (AES-GCM, SHA-3) | Targeted at complex secure bootloaders and encrypted OTA update services | Select when >512 KB flash or hardware AES-GCM acceleration is required |
| STM32U575VIT6 | No TrustZone, lower max frequency (160 MHz), smaller flash (2 Mbytes), no Octo-SPI or FDCAN | Optimized for ultra-low-power sensor hubs and BLE gateways | Select only if PSA Level 3 certification and CAN FD are not required |
Compared with STM32H563VIT6, the STM32H523VET6 offers identical security architecture and peripheral set at lower cost and power, but with reduced memory capacity; versus STM32U575VIT6, it delivers stronger real-time capability and automotive-grade connectivity (FDCAN, Octo-SPI) at the expense of peak energy efficiency.
Availability
STM32H523VET6 is available at Aetrix Electronics and suitable for industrial PLCs, secure IoT gateways, medical handheld diagnostics, and USB-C PD hubs requiring stable component supply and long-term lifecycle assurance.
Supply support for STM32H523VET6 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, specializing in microcontrollers, power management, sensors, and automotive ICs.
The STM32H5 series targets high-assurance embedded systems demanding PSA-certified security, real-time determinism, and scalable memory - specifically engineered for industrial control, secure edge computing, and functional-safety-adjacent applications.
FAQ
What is the maximum operating frequency and associated power supply requirement?
The STM32H523VET6 achieves 250 MHz maximum CPU frequency when powered by 3.3 V with VCORE regulated to 1.2 V. At 1.71–1.95 V VCORE, max frequency drops to 150 MHz per DS14540 Table 21. The internal voltage regulator must be enabled, and external 2.2 µF VCAP capacitor is mandatory for stable operation at full speed.
Does this MCU support crystal-less USB Full-Speed operation?
Yes. The STM32H523VET6 integrates a factory-trimmed 48 MHz HSI48 oscillator with ±0.25% accuracy over temperature and voltage, qualified for crystal-less USB Full-Speed host and device operation per USB-IF compliance requirements. No external crystal or trimming circuitry is needed for standard USB FS functionality.
How is TrustZone security enforced across memory and peripherals?
TrustZone enforcement is implemented via the Global TrustZone Controller (GTZC), which uses SAU regions to define secure/non-secure memory attributes and TZIC to gate peripheral access. All SRAM banks, flash sectors, and peripherals (including DMA, timers, and communication interfaces) are mapped through GTZC registers, requiring explicit configuration before secure/non-secure access is permitted.
What packaging options are available for the STM32H523VET6?
The STM32H523VET6 is offered exclusively in LQFP100 (14 × 14 mm, 0.5 mm pitch) per ordering code "VET6" - where "V" denotes LQFP100, "E" indicates industrial temperature range (–40°C to +85°C), and "T6" specifies tape-and-reel packaging. Other variants (e.g., UFBGA144) use different suffixes and are not interchangeable.
STM32H523VET6 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 100-LQFP
- 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:
STM32H523VET6 FAQ
1.How can I place an order for STM32H523VET6 through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32H523VET6 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 STM32H523VET6 reliable?
The price and inventory of STM32H523VET6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32H523VET6 is usually 5 days.
3.What payment methods are accepted for STM32H523VET6?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32H523VET6 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32H523VET6?
STM32H523VET6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32H523VET6 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 STM32H523VET6?
For technical support, including STM32H523VET6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32H523VET6 requirements.
6.How does Aetrix verify that STM32H523VET6 is sourced from the original manufacturer or authorized distributors?
All STM32H523VET6 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 STM32H523VET6 meets industry standards.
7.What is the process for return or replacement of STM32H523VET6?
All STM32H523VET6 units undergo pre-shipment inspection (PSI). If there is an issue with STM32H523VET6, 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 STM32H523VET6 part is unused and in its original packaging.
Return procedure for STM32H523VET6:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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