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STMicroelectronics STM32H523RCT7TR
- Part No.:
- STM32H523RCT7TR
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
STM32H523RCT7TR.pdf
- Description:
- STM32H523RCT7TR
- Quantity:
- Payment:
- Shipping:
Inventory:3,537
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Product details
Overview
STM32H523RCT7TR 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. Used in secure industrial gateways requiring real-time control, cryptographic acceleration, and low-power connectivity.
For engineers reviewing the STM32H523RCT7TR datasheet, STM32H523RCT7TR pinout, STM32H523RCT7TR application, or STM32H523RCT7TR equivalent, key selection criteria include TrustZone-enforced peripheral isolation, 12-bit dual ADCs with 5 Msps sampling, hardware PKA/ECDSA support, and LQFP64 package compatibility with existing STM32H5 layout footprints.
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. Its dual DMA controllers offload CPU for concurrent high-bandwidth transfers across Octo-SPI, SDMMC, and USB interfaces.
ART Accelerator includes 8-Kbyte instruction cache and 4-Kbyte data cache to eliminate wait states during flash execution and enable deterministic timing for real-time tasks. The embedded FPU and MPU support floating-point-intensive firmware and memory-protected multitasking in safety-critical environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M33 with TrustZone, FPU, MPU, up to 250 MHz - enables secure, deterministic real-time execution with hardware-isolated secure/non-secure worlds. |
| Flash Memory | 512 Kbytes with ECC and dual-bank RWW - allows over-the-air firmware updates without halting application code execution. |
| SRAM | 272 Kbytes total (80-Kbyte SRAM2 with ECC, 2-Kbyte backup SRAM) - supports large buffers for crypto operations and RTC-persistent data storage. |
| Analog Peripherals | Dual 12-bit ADCs (5 Msps), dual-channel 12-bit DAC, DTS, VREFBUF - enables high-fidelity sensor acquisition and analog output control in closed-loop systems. |
| Security Features | SESIP3/PSA Level 3 certified, PKA, HASH (SHA-1/2/3), TRNG (NIST SP800-90B), 96-bit UID - meets IEC 62443-3-3 requirements for industrial IoT edge nodes. |
| Communication Interfaces | 3× I²C Fm+, 2× I³C, 6× USART/LPUART, 4× SPI/I²S, 2× FDCAN, USB FS host/device, UCPD - supports multi-protocol fieldbus bridging and USB-C power negotiation. |
| Package | LQFP64 (10 × 10 mm, 0.5 mm pitch) - standard footprint compatible with automated SMT assembly and thermal management in compact industrial enclosures. |
Pinout & Package
LQFP64 package with exposed thermal pad; 64-pin quad flat pack, 10 mm × 10 mm body, 0.5 mm lead pitch, RoHS-compliant ECOPACK2 finish.
| 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 - enables mixed-voltage system integration and noise isolation. |
| VSS, VSSA, VSSIO2 | Ground returns | Dedicated analog/digital ground planes reduce coupling between sensitive ADC paths and switching I/O noise. |
| PA0–PA15, PB0–PB15, etc. | General-purpose I/Os | Up to 112 fast I/Os with interrupt capability; most 5 V-tolerant - simplifies level-shifting in legacy industrial bus interfaces. |
| NRST | Reset input | Active-low reset with internal pull-up; supports external reset supervision and brown-out recovery sequencing. |
| BOOT0 | Boot mode selection | Configures boot source (system memory, flash, or SRAM); critical for secure bootloader validation and field firmware recovery. |
| SWCLK/SWDIO | Debug interface | Serial Wire Debug pins supporting authenticated debug access - enforces secure development and production programming workflows. |
Key Features
| Feature | Design Value |
|---|---|
| TrustZone-enforced peripheral isolation | GTZC controller assigns secure/non-secure attributes per peripheral instance - prevents unauthorized access to crypto accelerators or communication stacks. |
| Hardware PKA + ECDSA verification | Offloads asymmetric cryptography for secure firmware signing and OTA update authentication - reduces MCU load and ensures sub-100 ms signature validation latency. |
| Octo-SPI interface with HyperRAM/NOR support | Enables direct XIP execution from external serial PSRAM/NAND - extends effective code space beyond on-chip flash while maintaining deterministic timing. |
| Two low-power timers in Stop mode | Provides wake-up capability from ultra-low-power states using independent clock sources - essential for battery-backed sensor nodes with <1 µA standby current. |
| USB 2.0 full-speed crystal-less operation | Eliminates external crystal for USB PHY - reduces BOM cost and PCB area in space-constrained designs without sacrificing enumeration reliability. |
Applications
| Industrial PLC Edge Node | Secure Smart Meter |
|---|---|
Use Scenario: Real-time I/O scanning, Modbus TCP bridging, and encrypted firmware updates in DIN-rail mounted controllers. IC Role / Device Role / Timing Role: Main application processor executing RTOS, managing dual CAN/FDCAN fieldbus interfaces, and performing AES-GCM encryption on telemetry streams. Use Value: Dual-bank flash enables seamless firmware upgrades without downtime; TrustZone isolates metering firmware from communication stack to prevent tampering. | Use Scenario: Tamper-resistant energy measurement with secure time-stamped logging and remote tariff updates via cellular backhaul. IC Role / Device Role / Timing Role: Secure metering SoC handling metrology ADC sampling, SHA-3 hash generation for log integrity, and PKA-based signature verification of tariff files. Use Value: PSA Level 3 certification validates resistance to physical and logical attacks; backup SRAM retains billing data during power loss. |
| USB-C Power Delivery Hub | IIoT Predictive Maintenance Gateway |
Use Scenario: Multi-port USB-C hub negotiating power contracts, monitoring voltage/current, and enforcing policy-based port control. IC Role / Device Role / Timing Role: UCPD controller managing PD communication, FDCAN for industrial sensor aggregation, and USB FS host for peripheral enumeration. Use Value: Integrated UCPD PHY eliminates external transceiver; hardware TRNG seeds secure session keys for PD message authentication. | Use Scenario: Vibration and temperature monitoring at rotating machinery, with local FFT analysis and anomaly detection before cloud upload. IC Role / Device Role / Timing Role: Sensor fusion hub running CMSIS-DSP kernels on FPU, acquiring from dual ADCs at 5 Msps, and compressing data using SHA-256 HMAC. Use Value: ART Accelerator enables zero-wait-state FFT execution from flash; 272-Kbyte SRAM buffers multi-second waveform captures for offline analysis. |
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 LQFP100 package, adds Ethernet MAC and JPEG codec | Suitable for gateway-class devices needing wired LAN or image processing | Select when >512 Kbytes flash or Ethernet connectivity is required; not pin-compatible with LQFP64. |
| STM32WBA52CGU6 | Arm Cortex-M0+ core, Bluetooth LE radio, lower security certification (PSA Level 1), 256 Kbytes flash | Targeted for wireless sensor endpoints rather than secure edge compute | Choose for BLE mesh nodes where RF integration outweighs need for TrustZone or FPU performance. |
Compared with STM32H523RCT7TR, the STM32H563VIT6 offers greater memory and connectivity but requires PCB redesign due to LQFP100 packaging, while the STM32WBA52CGU6 trades security depth and computational throughput for integrated wireless and lower power - making it unsuitable as a drop-in replacement in TrustZone-dependent applications.
Availability
STM32H523RCT7TR is available at Aetrix Electronics and suitable for industrial PLC edge nodes, secure smart meters, USB-C power delivery hubs, and IIoT predictive maintenance gateways requiring stable component supply across extended product lifecycles.
Supply support for STM32H523RCT7TR 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 consumer markets since 1987.
The STM32H5 series targets high-security, high-performance embedded applications demanding Arm TrustZone, cryptographic acceleration, and robust real-time capabilities - designed specifically for industrial IoT edge nodes and certified secure devices.
FAQ
What is the maximum operating frequency and associated voltage range for STM32H523RCT7TR?
The STM32H523RCT7TR operates at up to 250 MHz when supplied with 3.3 V; at 1.71–2.7 V, maximum frequency is reduced to 150 MHz per the supply voltage vs. frequency configuration table (DS14540 Rev 3, Table 21). This scaling ensures reliable operation across wide industrial temperature ranges (-40°C to +125°C).
Does STM32H523RCT7TR support hardware-accelerated AES encryption?
No - the STM32H523RCT7TR does not include a dedicated AES accelerator. It relies on software libraries (e.g., Mbed TLS) executed on the Cortex-M33 core with TrustZone isolation. Hardware cryptographic support is limited to HASH (SHA-1/2/3), PKA (ECDSA), and TRNG; AES must be implemented in secure world firmware.
How many independent ADC instances does STM32H523RCT7TR provide, and what is their maximum combined sampling rate?
It integrates two independent 12-bit ADCs (ADC1 and ADC2), each capable of 5 Msps in 12-bit mode. When synchronized and interleaved, they achieve up to 10 Msps aggregate sampling - confirmed in Section 3.22 and electrical characteristics Table 22 of DS14540 Rev 3.
Is the LQFP64 package of STM32H523RCT7TR pin-compatible with earlier STM32H5xx variants?
Yes - the LQFP64 variant (package code 5W) shares identical pinout and signal mapping with other STM32H523xx and STM32H533xx LQFP64 derivatives, enabling migration within the same package family. Pin definitions are validated in Section 4.2 (Pin description) of DS14540 Rev 3.
STM32H523RCT7TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 64-LQFP
- Series:
- STM32H5
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- ARM® Cortex®-M33F
- 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:
- 49
- Program Memory Size:
- 256KB (256K 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 16x12b SAR; D/A 2x12b
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32H523RCT7TR FAQ
1.How can I place an order for STM32H523RCT7TR through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32H523RCT7TR 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 STM32H523RCT7TR reliable?
The price and inventory of STM32H523RCT7TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32H523RCT7TR is usually 5 days.
3.What payment methods are accepted for STM32H523RCT7TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32H523RCT7TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32H523RCT7TR?
STM32H523RCT7TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32H523RCT7TR 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 STM32H523RCT7TR?
For technical support, including STM32H523RCT7TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32H523RCT7TR requirements.
6.How does Aetrix verify that STM32H523RCT7TR is sourced from the original manufacturer or authorized distributors?
All STM32H523RCT7TR 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 STM32H523RCT7TR meets industry standards.
7.What is the process for return or replacement of STM32H523RCT7TR?
All STM32H523RCT7TR units undergo pre-shipment inspection (PSI). If there is an issue with STM32H523RCT7TR, 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 STM32H523RCT7TR part is unused and in its original packaging.
Return procedure for STM32H523RCT7TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STM32H523RCT7TR Tags
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