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STMicroelectronics STM32L562MEY6QTR
- Part No.:
- STM32L562MEY6QTR
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 81-UFBGA, WLCSP
- Datasheet:
-
STM32L562MEY6QTR.pdf
- Description:
- IC MCU 32BIT 512KB FLASH 81WLCSP
- Quantity:
- Payment:
- Shipping:
Inventory:1,389
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Product details
Overview
STM32L562MEY6QTR from STMicroelectronics is an ultra-low-power Arm® Cortex®-M33 32-bit microcontroller with TrustZone® security, FPU, and SMPS support. It delivers 165 DMIPS at up to 110 MHz, integrates 512 KB Flash (dual-bank read-while-write), 256 KB SRAM (64 KB with hardware parity), and operates from 1.71 V to 3.6 V across –40°C to 125°C. It targets secure, battery-powered edge nodes such as industrial wireless sensors and medical wearables requiring certified firmware integrity and sub-µA standby operation.
For engineers reviewing the STM32L562MEY6QTR datasheet, STM32L562MEY6QTR pinout, STM32L562MEY6QTR application, or STM32L562MEY6QTR equivalent, key selection criteria include TrustZone-enabled peripheral isolation, 222 nA Standby-with-RTC power, AES+PKA cryptographic acceleration, and UFQFPN48 package compatibility with space-constrained PCB layouts.
Technical Context
The device implements a dual-core security architecture via Arm TrustZone®, enabling strict separation of secure and non-secure firmware execution, memory regions, and peripherals - enforced by the Global TrustZone Controller (GTZC) and SAU configuration. Its FlexPowerControl system supports seven low-power modes, including Stop 2 (3.16 µA with RTC) and Shutdown (17 nA), managed by an integrated SMPS step-down converter and LDO regulator.
Core timing relies on three independent clock sources: a 4–48 MHz HSE crystal oscillator, 32 kHz LSE for RTC, and a multispeed internal oscillator auto-trimmed by LSE (±0.25% accuracy). The ART Accelerator includes an 8-KB instruction cache enabling zero-wait-state execution from Flash at 110 MHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M33 with TrustZone and FPU - enables secure real-time control with hardware-enforced privilege separation. |
| Max Clock Frequency | 110 MHz - supports high-throughput signal processing and USB FS communication without external PLL overhead. |
| Flash Memory | 512 KB dual-bank - allows seamless firmware updates via read-while-write, critical for OTA reliability in field-deployed devices. |
| SRAM | 256 KB total, 64 KB with hardware parity - ensures data integrity for safety-critical variables and cryptographic key storage. |
| Low-Power Standby | 222 nA with RTC enabled - extends battery life to years in intermittently active sensor nodes. |
| Security Accelerators | AES coprocessor + PKA + HASH + OTFDEC - offloads TLS handshake, public-key operations, and encrypted Octo-SPI boot without CPU intervention. |
| Package | UFQFPN48 (7 × 7 mm, 0.5 mm pitch) - surface-mount footprint compatible with automated assembly and thermal management in compact enclosures. |
Pinout & Package
STM32L562MEY6QTR uses the UFQFPN48 (7 × 7 mm) package with 0.5 mm pitch, featuring exposed thermal pad for enhanced heat dissipation in continuous operation. Pin functions are validated per STMicroelectronics DS12736 Rev 5, Section 4 ("Pinouts and pin description").
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDIO2 | Digital/analog I/O supply rails | Independent 1.71–3.6 V domains allow mixed-signal coexistence and I/O voltage flexibility down to 1.08 V on select pins. |
| VSS, VSSA | Digital/analog ground references | Separate analog/digital ground planes reduce noise coupling into ADC/DAC paths. |
| PA0–PA15, PB0–PB15, etc. | General-purpose I/Os | Up to 114 fast GPIOs with interrupt capability; most 5 V-tolerant, enabling direct interfacing with legacy logic. |
| NRST | Active-low reset input | Asynchronous reset with Schmitt trigger; supports external pull-up and debounced push-button recovery. |
| BOOT0 | Boot mode selection | Configures primary boot source (system memory, embedded Flash, or SRAM) during power-on reset sequence. |
| VBAT | Backup power supply | Supplies RTC and 32×32-bit backup registers at 187 nA - preserves timekeeping and state across main power loss. |
Key Features
| Feature | Design Value |
|---|---|
| TrustZone-enabled peripheral isolation | Hardware-enforced access control for memories, I/Os, and peripherals - eliminates software-only security gaps in firmware updates. |
| SMPS + LDO dual-regulator system | 62 µA/MHz run current @ 3 V (SMPS mode) - cuts dynamic power vs. LDO-only alternatives, extending coin-cell lifetime by >2×. |
| OCTOSPI interface with OTFDEC | On-the-fly decryption of external flash - enables secure boot from untrusted high-density memory without RAM exposure of decrypted code. |
| ULPMark-CP score | 370 - industry-leading energy efficiency benchmark for core-peripheral activity, validating low-power design claims. |
| Secure firmware installation (SFI) | Root-secured services (RSS) enforce authenticated, signed firmware loading - prevents unauthorized code injection during field deployment. |
Applications
| Industrial Wireless Sensor Node | Portable Medical Monitor |
|---|---|
Use Scenario: Battery-powered temperature/humidity node transmitting encrypted telemetry via LoRaWAN every 5 minutes. IC Role / Device Role / Timing Role: Main controller executing sensor fusion, AES-GCM encryption, and low-duty-cycle radio scheduling; RTC maintains precise wake intervals. Use Value: 222 nA Standby-with-RTC and 5 µs wakeup enable 10+ year battery life using CR2032 while meeting IEC 62304 Class B timing constraints. | Use Scenario: Wearable ECG patch recording raw analog signals, performing real-time arrhythmia detection, and storing logs locally. IC Role / Device Role / Timing Role: Signal acquisition hub managing dual 12-bit ADCs (5 Msps), two OPAMPs with PGA, and secure local storage via SDMMC. Use Value: Hardware parity on 64 KB SRAM and TrustZone isolation protect patient data integrity; ULPMark-PP score of 54 validates sustained analog processing efficiency. |
| Smart Utility Meter | Secure Asset Tracker |
Use Scenario: M-Bus or PLC-based electricity meter with tamper detection, firmware update resilience, and 10-year battery certification. IC Role / Device Role / Timing Role: Secure metering SoC handling metrology calculations, active tamper response (voltage/frequency/temp), and secure OTA via TF-M. Use Value: Active tamper protection and 96-bit unique ID meet ANSI C12.22 and DLMS/COSEM security mandates; RDP level 2 prevents flash readout. | Use Scenario: GPS/GNSS tracker reporting location over NB-IoT with end-to-end TLS 1.3 and firmware rollback protection. IC Role / Device Role / Timing Role: Secure connectivity controller running TF-M, managing UCPD for USB-C power negotiation, and FDCAN for vehicle bus diagnostics. Use Value: SecureMark-TLS® score of 27400 validates hardware-accelerated TLS handshake performance; PKA reduces ECDSA signature time to <15 ms. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-low-power secure MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32U575ZIT6 | Higher max frequency (160 MHz), larger Flash (2 MB), no SMPS, different package (LQFP144/UFBGA176) | Better suited for complex GUI or AI inference; lacks sub-µA standby optimization for long-life battery use | Select when compute density outweighs ultra-low static power; verify thermal limits for continuous operation. |
| RA4M3GFP | Arm Cortex-M4F, 100 MHz, 1 MB Flash, 384 KB SRAM, no TrustZone, Renesas Secure Crypto Engine | Strong real-time performance but no hardware-isolated secure world; lower ULPMark-CP (280) | Choose for cost-sensitive industrial HMI where PSA Level 2 suffices and TrustZone partitioning is not mandated. |
Compared with STM32U575ZIT6 and RA4M3GFP, STM32L562MEY6QTR uniquely balances sub-250 nA standby, TrustZone-certified peripheral isolation, and SMPS efficiency - making it optimal for multi-year battery deployments requiring PSA Level 3 compliance and minimal PCB area.
Availability
STM32L562MEY6QTR is available at Aetrix Electronics and suitable for industrial wireless sensors, portable medical monitors, smart utility meters, and secure asset trackers requiring stable component supply across extended product lifecycles.
Supply support for STM32L562MEY6QTR 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 ICs, sensors, and automotive chips since 1987.
The STM32L5 series is engineered for ultra-low-power, high-security embedded applications - integrating TrustZone, cryptographic accelerators, and advanced power gating to serve IoT edge nodes demanding both longevity and certification readiness.
FAQ
What is the maximum operating temperature range for STM32L562MEY6QTR?
The device is qualified for operation from –40°C to +125°C ambient temperature, verified per STMicroelectronics DS12736 Rev 5, Section 5.3.1. This extended range supports deployment in harsh industrial environments, under-hood automotive modules, and outdoor utility infrastructure without derating.
Does STM32L562MEY6QTR support hardware-based secure boot?
Yes - it implements a root-of-trust via unique boot entry, hide protection area (HDP), and RDP level 2/3. Secure boot is enforced by the GTZC and verified by embedded RSS, ensuring only cryptographically signed firmware executes from reset.
Can the OCTOSPI interface operate with external encrypted memory?
Yes - the on-the-fly decryption engine (OTFDEC) decrypts Octo-SPI reads in real time using AES-128/256 keys stored in secure memory. Decrypted data never resides unencrypted in SRAM, satisfying Common Criteria EAL5+ requirements for external code storage.
How many I/O pins support independent 1.08 V supply?
Up to 14 I/Os (grouped as VDDIO2 domain) support independent supply down to 1.08 V, enabling direct interfacing with low-voltage peripherals like certain MEMS sensors or energy-harvesting PMICs without level shifters.
STM32L562MEY6QTR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 81-UFBGA, WLCSP
- Series:
- STM32L5
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M33
- Core Size:
- 32-Bit Single-Core
- Speed:
- 110MHz
- Connectivity:
- CANbus, I2C, IrDA, LINbus, MMC/SD, QSPI, SAI, SPI, UART/USART, USB
- Peripherals:
- Brown-out Detect/Reset, DMA, PWM, WDT
- Number of I/O:
- 51
- Program Memory Size:
- 512KB (512K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 256K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.71V ~ 3.6V
- Data Converters:
- A/D 15x12b; D/A 2x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32L562MEY6QTR FAQ
1.How can I place an order for STM32L562MEY6QTR through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32L562MEY6QTR 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 STM32L562MEY6QTR reliable?
The price and inventory of STM32L562MEY6QTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32L562MEY6QTR is usually 5 days.
3.What payment methods are accepted for STM32L562MEY6QTR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32L562MEY6QTR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32L562MEY6QTR?
STM32L562MEY6QTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32L562MEY6QTR 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 STM32L562MEY6QTR?
For technical support, including STM32L562MEY6QTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32L562MEY6QTR requirements.
6.How does Aetrix verify that STM32L562MEY6QTR is sourced from the original manufacturer or authorized distributors?
All STM32L562MEY6QTR 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 STM32L562MEY6QTR meets industry standards.
7.What is the process for return or replacement of STM32L562MEY6QTR?
All STM32L562MEY6QTR units undergo pre-shipment inspection (PSI). If there is an issue with STM32L562MEY6QTR, 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 STM32L562MEY6QTR part is unused and in its original packaging.
Return procedure for STM32L562MEY6QTR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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