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STMicroelectronics STM32H523VCT6
- Part No.:
- STM32H523VCT6
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- -
- Datasheet:
-
STM32H523VCT6.pdf
- Description:
- IC MCU 32BIT 256KB FLASH 100LQFP
- Quantity:
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Inventory:3,302
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Product details
Overview
STM32H523VCT6 from STMicroelectronics is a 32-bit Arm® Cortex®-M33 microcontroller with TrustZone® security, 250 MHz max clock, 512-Kbyte ECC flash, and 272-Kbyte SRAM (80-Kbyte with ECC). It integrates dual DMA controllers, two 12-bit ADCs (5 Msps), one dual-channel 12-bit DAC, FDCAN, USB 2.0 FS host/device, and Octo-SPI for secure industrial control and IoT edge nodes.
For engineers reviewing the STM32H523VCT6 datasheet, STM32H523VCT6 pinout, STM32H523VCT6 application, or STM32H523VCT6 equivalent, key selection criteria include TrustZone-enabled peripheral isolation, 512-Kbyte dual-bank flash with read-while-write, 272-Kbyte SRAM with ECC, 112 I/Os (most 5 V-tolerant), and PSA Level 3/SESIP3 security certification.
Technical Context
The STM32H523VCT6 implements Armv8-M mainline security with configurable SAU regions and TrustZone-aware peripherals including GTZC-managed memory, flash, SRAM, and RCC. 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 supports flexible boot modes (TrustZone enabled/disabled), secure firmware installation (SFI), and root-of-trust via unique boot entry and HDP. Security acceleration includes PKA for ECDSA, HASH (SHA-1/2/3), NIST SP800-90B-compliant TRNG, and active tamper detection.
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, dual-bank architecture enabling read-while-write |
| SRAM | 272 Kbytes total: 80-Kbyte SRAM2 with ECC + 2-Kbyte backup SRAM in low-power modes |
| Analog Peripherals | Two 12-bit ADCs (5 Msps), one dual-channel 12-bit DAC, digital temperature sensor, VREFBUF |
| Security | PSA Level 3 & SESIP3 certified; TrustZone, SAU, SFI, PKA, HASH, TRNG, active tamper |
| Communication | Up to 21 interfaces: 3×I²C, 2×I³C, 6×U(S)ART/LPUART, 4×SPI/I²S, 2×FDCAN, USB FS, UCPD, HDMI-CEC |
| Package | LQFP100 (14 × 14 mm, 0.5 mm pitch), 100-pin, RoHS-compliant ECOPACK2 |
Pinout & Package
LQFP100 package: 100-pin quad flat pack, 14 × 14 mm body, 0.5 mm lead pitch, exposed thermal pad, RoHS-compliant ECOPACK2.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDIO2 | Power supply inputs | 1.71–3.6 V digital/analog/core supplies; VDDIO2 supports independent 1.08–3.6 V I/O rail |
| VSS, VSSA | Ground references | Digital/analog ground separation improves ADC/DAC noise immunity and signal integrity |
| NRST | Active-low reset input | Asynchronous reset with internal pull-up; supports external reset assertion and debug-initiated reset |
| PA0–PA15, PB0–PB15, etc. | General-purpose I/Os | Up to 112 fast I/Os; most are 5 V-tolerant and support interrupt generation and multiple alternate functions |
| BOOT0 | Boot mode selection | Configures boot source (system memory, flash, or SRAM); sampled at reset with internal pull-down |
| SWCLK, SWDIO | Debug interface signals | Serial Wire Debug (SWD) pins for authenticated debug access under TrustZone control |
Key Features
| Feature | Design Value |
|---|---|
| TrustZone-enforced peripheral isolation | GTZC enables hardware-defined secure/non-secure memory and peripheral access zones |
| Dual-bank flash with RWW | Enables seamless firmware updates without halting real-time operation or losing data |
| ART Accelerator with ICACHE/DCACHE | Eliminates flash wait states and accelerates external memory access for deterministic latency |
| PSA Level 3 & SESIP3 certification | Validated security assurance for secure boot, firmware upgrade, and cryptographic operations |
| Flexible low-power modes | Stop/Standby with RTC + 32 backup registers + VBAT supply ensures persistent timekeeping and state retention |
Applications
| Industrial PLC Controller | Secure Edge Gateway |
|---|---|
Use Scenario: Real-time logic execution, analog sensor acquisition, and fieldbus communication in factory automation cabinets. IC Role / Device Role / Timing Role: Main controller executing deterministic control loops with 250 MHz CPU, dual 12-bit ADCs (5 Msps), and FDCAN for industrial networking. Use Value: Dual-bank flash enables over-the-air firmware updates without stopping I/O scanning or motion control cycles. | Use Scenario: Aggregating and preprocessing sensor data from multiple protocols before TLS-secured cloud upload. IC Role / Device Role / Timing Role: Secure application processor managing encrypted data flow, USB/UCPD power negotiation, and trusted boot verification. Use Value: PSA Level 3-certified TrustZone isolates secure crypto operations from untrusted application code, preventing key leakage. |
| Smart Energy Meter | Medical Diagnostic Handheld |
Use Scenario: High-accuracy energy measurement with tamper detection, secure metering data storage, and HPLC communication. IC Role / Device Role / Timing Role: Trusted metering SoC performing ADC sampling, SHA-3 hashing of consumption logs, and active tamper response. Use Value: Active tamper sensors + secure hide protection area (HDP) prevent physical extraction of calibration keys or usage history. | Use Scenario: Portable ultrasound or ECG device requiring low-noise analog front-end, battery longevity, and HIPAA-compliant data encryption. IC Role / Device Role / Timing Role: Integrated mixed-signal controller handling 12-bit ADC acquisition, DAC waveform generation, and secure BLE/USB data export. Use Value: 80-Kbyte SRAM2 with ECC ensures reliable buffer storage of medical waveforms during intermittent power loss. |
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 Mbyte), larger SRAM (1 Mbyte), additional crypto accelerators (AES-GCM, ChaCha20) | Better suited for complex TLS stacks and large OTA images; requires more PCB area and power budget | Select when >1 Mbyte secure firmware image size or hardware-accelerated AEAD cipher support is required |
| STM32L562VET6 | Lower max frequency (160 MHz), smaller flash (512 Kbyte), no Octo-SPI, lower power profile (Stop2 current <1.5 µA) | Optimized for battery-powered endpoints where ultra-low sleep current outweighs compute throughput needs | Select when primary requirement is multi-year battery life over 250 MHz real-time performance or external memory expansion |
Compared with STM32H523VCT6, the STM32H563VIT6 delivers higher memory density and advanced crypto offload for cloud-connected gateways, while the STM32L562VET6 trades peak performance for sub-µA Stop2 current-making it ideal for energy-harvested or coin-cell devices where security remains mandatory but throughput is secondary.
Availability
STM32H523VCT6 is available at Aetrix Electronics and suitable for industrial PLCs, secure edge gateways, smart energy meters, and medical handhelds requiring stable component supply, long-term lifecycle support, and certified security features.
Supply support for STM32H523VCT6 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 products for industrial, automotive, and consumer markets.
The STM32H5 series targets high-assurance embedded systems demanding PSA Level 3/SESIP3 security, deterministic real-time performance, and scalable memory-designed specifically for secure industrial control, energy infrastructure, and regulated medical devices.
FAQ
What is the maximum operating frequency and corresponding DMIPS rating?
The STM32H523VCT6 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 voltage range (1.71–3.6 V) and temperature range (–40 to +125 °C), verified per DS14540 Rev 3 Section 5.3.1.
Does this MCU support secure firmware updates out of the box?
Yes. The STM32H523VCT6 includes built-in Secure Firmware Installation (SFI) and TrustZone-aware bootloader support for authenticated, encrypted firmware upgrades using TF-M. Its PSA Level 3 certification validates the end-to-end secure update chain, including signature verification via PKA and hash acceleration.
Which package variant does STM32H523VCT6 use, and what are its thermal characteristics?
STM32H523VCT6 uses the LQFP100 package (14 × 14 mm, 0.5 mm pitch). Its thermal resistance θJA is 30.5 °C/W (JEDEC standard board), and θJC is 5.5 °C/W (junction-to-case), enabling reliable operation up to +125 °C ambient when properly heatsinked-per DS14540 Rev 3 Table 18 and Section 6.6.
Can the internal ADCs operate concurrently while the CPU is in Stop mode?
No. While the STM32H523VCT6 supports ADC conversions in low-power Run mode and certain Stop sub-modes, full 12-bit, 5 Msps operation requires active CPU clocks and ART Accelerator. However, low-power timers (LPTIM1/LPTIM2) and wake-up capable ADC triggers allow autonomous sampling sequences that resume CPU execution only upon threshold violation or completion.
STM32H523VCT6 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- -
- Series:
- -
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
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- Core Size:
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- Speed:
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- Connectivity:
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- Peripherals:
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- Number of I/O:
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- Program Memory Size:
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- 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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- Operating Temperature:
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- Qualification:
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- Mounting Type:
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- Supplier Device Package:
STM32H523VCT6 FAQ
1.How can I place an order for STM32H523VCT6 through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32H523VCT6 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 STM32H523VCT6 reliable?
The price and inventory of STM32H523VCT6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32H523VCT6 is usually 5 days.
3.What payment methods are accepted for STM32H523VCT6?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32H523VCT6 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32H523VCT6?
STM32H523VCT6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32H523VCT6 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 STM32H523VCT6?
For technical support, including STM32H523VCT6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32H523VCT6 requirements.
6.How does Aetrix verify that STM32H523VCT6 is sourced from the original manufacturer or authorized distributors?
All STM32H523VCT6 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 STM32H523VCT6 meets industry standards.
7.What is the process for return or replacement of STM32H523VCT6?
All STM32H523VCT6 units undergo pre-shipment inspection (PSI). If there is an issue with STM32H523VCT6, 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 STM32H523VCT6 part is unused and in its original packaging.
Return procedure for STM32H523VCT6:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STM32H523VCT6 Tags
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