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STMicroelectronics STM32H523RCT6
- Part No.:
- STM32H523RCT6
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- -
- Datasheet:
-
STM32H523RCT6.pdf
- Description:
- IC MCU 32BIT 256KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,712
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Product details
Overview
STM32H523RCT6 from STMicroelectronics is a 32-bit Arm® Cortex®-M33 microcontroller with TrustZone® security, 250 MHz max clock, 512 KB flash (ECC), 272 KB SRAM (80 KB with ECC), and integrated FPU-designed for secure industrial control, IoT edge nodes, and firmware-upgradable embedded gateways requiring real-time deterministic execution and hardware-rooted security.
For engineers reviewing the STM32H523RCT6 datasheet, STM32H523RCT6 pinout, STM32H523RCT6 application, or STM32H523RCT6 equivalent, key selection criteria include TrustZone-enforced peripheral isolation, dual-bank read-while-write flash for seamless OTA updates, 100 K-cycle data flash capability, and support for USB Type-C® Power Delivery negotiation via UCPD peripheral.
Technical Context
The STM32H523RCT6 implements Armv8-M mainline architecture with configurable SAU regions enabling fine-grained memory and peripheral access control between secure/non-secure worlds. Its ART Accelerator includes 8 KB instruction cache and 4 KB data cache to sustain zero-wait-state execution at 250 MHz from internal flash or external Octo-SPI memories.
Security is anchored by TrustZone-aware peripherals-including GPDMA, FDCAN, UCPD, and RNG-and hardened boot via unique entry point, Secure Firmware Installation (SFI), and PSA Level 3/SESIP3-certified assurance. The device supports TF-M-based secure firmware upgrades and ECDSA signature verification using dedicated PKA hardware.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M33 @ up to 250 MHz, with TrustZone, FPU, MPU, and 375 DMIPS performance |
| Memory | 512 KB flash (dual-bank, ECC, 100K write cycles for data sectors), 272 KB SRAM (80 KB SRAM2 with ECC) |
| Security | PSA Level 3 & SESIP3 certified; TrustZone controller (GTZC); PKA, HASH (SHA-1/2/3), TRNG (NIST SP800-90B) |
| Peripherals | 2× FDCAN, 1× UCPD, 3× I2C/Fm+, 2× I3C, 6× USART/LPUART, 4× SPI/I2S, 2× ADC (5 Msps), 2× DAC, Octo-SPI, SDMMC |
| Power | 1.71–3.6 V supply; Sleep/Stop/Standby modes; 2 KB backup SRAM retained in Standby with VBAT |
| Package | LQFP64 (10 × 10 mm, 0.5 mm pitch), RoHS-compliant ECOPACK2 |
| Operating Temp | –40 °C to +85 °C ambient, qualified per industrial standards |
Pinout & Package
LQFP64 package (10 × 10 mm, 0.5 mm pitch) with exposed thermal pad; 64-pin quad flat pack suitable for reflow soldering and industrial PCB assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDIO2 | Power supply inputs | Separate 1.71–3.6 V domains for digital core, analog, and I/O banks-enabling mixed-voltage operation and noise isolation |
| VSS, VSSA, VSSIO2 | Ground returns | Dedicated analog/digital/I/O ground planes minimize coupling noise in mixed-signal applications |
| NRST | Active-low reset input | Asynchronous reset with internal pull-up; supports external debounced push-button or supervisor IC assertion |
| BOOT0 | Boot mode selection | Configures primary boot source (system memory, flash, or SRAM); sampled at power-on reset only |
| PA13/PA14 | SWD debug interface | Serial Wire Debug (SWDIO/SWCLK) pins-enable authenticated debug access under TrustZone lifecycle control |
| PC14/PC15 | Low-speed external oscillator | Connects 32.768 kHz crystal for RTC and low-power clock tree; supports calibration and tamper detection |
Key Features
| Feature | Design Value |
|---|---|
| TrustZone-enforced peripheral isolation | Eight configurable SAU regions allow runtime partitioning of peripherals (e.g., FDCAN in secure world, UART in non-secure) without software overhead |
| Dual-bank flash with RWW | Enables background firmware update: execute from Bank A while writing Bank B, eliminating application interruption during OTA |
| Octo-SPI interface | Supports x8/x4/x1 serial NOR/NAND/PSRAM/HyperRAM with DDR timing-replaces parallel memory interfaces to reduce pin count and PCB layers |
| UCPD controller | Hardware-accelerated USB Type-C® Power Delivery 3.1 negotiation (SRC/SNK roles), including VCONN switching and PD message parsing |
| Secure life cycle management | Flexible state transitions (Development → Production → Locked) enforced by fuse-based configuration and authenticated debug authentication |
Applications
| Industrial PLC Edge Node | Secure IoT Gateway |
|---|---|
Use Scenario: Compact programmable logic controller handling sensor aggregation, local logic execution, and encrypted cloud telemetry upload. IC Role / Device Role / Timing Role: Main application processor executing real-time control tasks, managing CAN FD fieldbus, and performing AES-GCM encryption before TLS transmission. Use Value: Dual-bank flash enables silent firmware rollback on corruption; TrustZone isolates crypto keys from application code; LPUART maintains comms during Stop mode for ultra-low-power polling. |
Use Scenario: Battery-backed smart home hub aggregating Zigbee, BLE, and Matter-over-Thread devices with local policy enforcement. IC Role / Device Role / Timing Role: Root-of-trust anchor running TF-M secure services, validating OTA payloads, and managing UCPD-powered USB-C peripheral docking. Use Value: PSA-certified security stack ensures compliance with Matter certification requirements; 2 KB backup SRAM retains session keys across brownouts; Octo-SPI hosts encrypted firmware image. |
| Medical Sensor Hub | Automotive Body Control Module |
Use Scenario: Portable patient monitor collecting ECG, SpO₂, and temperature data with local anomaly detection before HIPAA-compliant upload. IC Role / Device Role / Timing Role: Secure data acquisition MCU with isolated ADC sampling, TRNG for session keys, and hardware SHA-256 for data integrity signing. Use Value: NIST SP800-90B TRNG and PSA Level 3 certification meet FDA cybersecurity guidance; 12-bit ADC achieves 5 Msps for high-fidelity waveform capture. |
Use Scenario: Low-power body electronics module controlling door locks, lighting, and HVAC via LIN and CAN FD networks. IC Role / Device Role / Timing Role: Central domain controller managing secure firmware updates over FDCAN, authenticating LIN slave nodes, and monitoring battery voltage via VBAT path. Use Value: FDCAN FD supports >5 Mbps diagnostics and flash programming; VBAT-supplied RTC and 32 backup registers retain configuration during ignition-off; 5 V-tolerant GPIOs interface directly with legacy automotive sensors. |
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 memory (2 MB flash, 1 MB RAM), additional Ethernet MAC, no UCPD; same LQFP100 package | Targeted at networked industrial controllers requiring TCP/IP stack offload and larger secure firmware partitions | Select when Ethernet connectivity or >512 KB flash is required; not drop-in due to pin count and peripheral mismatch |
| NXP LPC55S69JBD100 | Arm Cortex-M33 @ 150 MHz, 640 KB flash, no Octo-SPI or UCPD; includes DSP extensions and dual-core asymmetric option | Better suited for audio preprocessing or motor control with CMSIS-DSP libraries; lacks USB-C PD and serial PSRAM support | Prefer for cost-sensitive audio/voice edge nodes where USB-C and external memory expansion are unnecessary |
Compared with STM32H523RCT6, the STM32H563VIT6 offers greater memory headroom and Ethernet but sacrifices UCPD and compact LQFP64 form factor; the LPC55S69 trades Octo-SPI and TrustZone peripheral granularity for DSP acceleration and lower base price-making it viable only where those features dominate design priorities.
Availability
STM32H523RCT6 is available at Aetrix Electronics and suitable for industrial PLC edge nodes, secure IoT gateways, medical sensor hubs, and automotive body control modules requiring stable component supply, long-term lifecycle support, and certified security foundations.
Supply support for STM32H523RCT6 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, delivering silicon solutions for automotive, industrial, and IoT markets with emphasis on energy efficiency, reliability, and embedded security.
The STM32H5 series targets high-assurance embedded systems demanding PSA-certified security, real-time determinism, and flexible memory architectures-specifically engineered for firmware-upgradable, safety-aware edge devices operating in untrusted environments.
FAQ
What security certifications does the STM32H523RCT6 hold?
The STM32H523RCT6 is certified to PSA Certified Level 3 and SESIP3 assurance standards, covering secure boot, cryptographic service isolation, side-channel resistance, and secure debug lifecycle enforcement. Certification documentation is published by GlobalPlatform and validated by independent labs-no self-declaration or internal testing claims.
Does the STM32H523RCT6 support USB Type-C® Power Delivery sink and source roles?
Yes-the integrated UCPD controller supports full USB Power Delivery 3.1 specification, including SRC, SNK, and DRP roles with hardware-based PD message parsing, VCONN switching, and BMC encoding/decoding. It operates without external transceivers and supports dead-battery charging detection.
Can the 512 KB flash be used for both program code and data storage with wear leveling?
Yes-up to 48 KB per bank is rated for 100,000 write/erase cycles and configured as data flash. ST provides HAL drivers and application notes for implementing wear-leveling algorithms in user code; ECC protection applies automatically to all flash accesses regardless of usage mode.
Is the LQFP64 package of STM32H523RCT6 pin-compatible with any prior STM32 generation?
No-the LQFP64 variant of STM32H523RCT6 has no pin-to-pin compatibility with earlier STM32F or STM32G lines due to fundamental changes in power domain routing (VDDIO2), TrustZone signal allocation (TZEN, TZNS), and peripheral multiplexing (e.g., Octo-SPI vs. standard SPI). Migration requires PCB redesign and firmware adaptation.
STM32H523RCT6 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- -
- Series:
- -
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- -
- Core Size:
- -
- Speed:
- -
- Connectivity:
- -
- Peripherals:
- -
- Number of I/O:
- -
- Program Memory Size:
- -
- Program Memory Type:
- -
- EEPROM Size:
- -
- RAM Size:
- -
- Voltage - Supply (Vcc/Vdd):
- -
- Data Converters:
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- Oscillator Type:
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- Grade:
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- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
STM32H523RCT6 FAQ
1.How can I place an order for STM32H523RCT6 through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32H523RCT6 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 STM32H523RCT6 reliable?
The price and inventory of STM32H523RCT6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32H523RCT6 is usually 5 days.
3.What payment methods are accepted for STM32H523RCT6?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32H523RCT6 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32H523RCT6?
STM32H523RCT6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32H523RCT6 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 STM32H523RCT6?
For technical support, including STM32H523RCT6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32H523RCT6 requirements.
6.How does Aetrix verify that STM32H523RCT6 is sourced from the original manufacturer or authorized distributors?
All STM32H523RCT6 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 STM32H523RCT6 meets industry standards.
7.What is the process for return or replacement of STM32H523RCT6?
All STM32H523RCT6 units undergo pre-shipment inspection (PSI). If there is an issue with STM32H523RCT6, 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 STM32H523RCT6 part is unused and in its original packaging.
Return procedure for STM32H523RCT6:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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