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STMicroelectronics STM32L496RET6
- Part No.:
- STM32L496RET6
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
STM32L496RET6.pdf
- Description:
- IC MCU 32BIT 512KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,143
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Product details
Overview
STM32L496RET6 from STMicroelectronics is an ultra-low-power Arm® Cortex®-M4 32-bit MCU with FPU, operating up to 80 MHz (100 DMIPS), featuring 512 KB flash, 320 KB SRAM, USB OTG FS, hardware SHA-256 accelerator, and integrated SMPS support. It targets battery-powered IoT edge nodes, portable medical sensors, and smart metering systems requiring sub-µA standby current and real-time audio processing.
For engineers reviewing the STM32L496RET6 datasheet, STM32L496RET6 pinout, STM32L496RET6 application, or STM32L496RET6 equivalent, key selection criteria include its 2.57 µA Stop 2 mode, dual-bank flash for seamless firmware updates, Chrom-ART Accelerator for GUI rendering, and dual CAN 2.0B interfaces for industrial fieldbus integration.
Technical Context
The device integrates an Adaptive Real-Time (ART) Accelerator enabling zero-wait-state execution from flash at 80 MHz, coupled with a Memory Protection Unit (MPU) and interconnect matrix for deterministic peripheral arbitration. Its FlexPowerControl architecture supports dynamic voltage scaling across six low-power modes, including 426 nA Standby with RTC and 25 nA Shutdown with five wakeup pins.
Core peripherals include two SAI interfaces for I²S/TDM audio streaming, four I²C FM+ ports (1 Mbit/s), six USART/LPUARTs with LIN/IrDA/ISO7816 support, and two CAN 2.0B controllers - all independently clocked via three dedicated PLLs (system, USB, audio).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M4 with FPU, 80 MHz max, 100 DMIPS - enables real-time DSP filtering and sensor fusion without external coprocessor |
| Flash / SRAM | 512 KB dual-bank flash (read-while-write), 320 KB SRAM (64 KB with parity) - supports secure OTA updates and fault-tolerant data logging |
| Low-Power Modes | 25 nA Shutdown, 426 nA Standby w/RTC, 2.57 µA Stop 2 - extends coin-cell battery life to >10 years in periodic wake-up sensing |
| Analog Peripherals | 3× 12-bit ADCs @ 5 Msps (16-bit oversampling), 2× DACs, 2× op-amps, 2× comparators - enables high-precision analog front-end for biometric or environmental monitoring |
| Security & Crypto | Hardware HASH (SHA-256), true RNG, 96-bit unique ID, ROP/PCROP protection - meets IEC 62443-3-3 SL2 requirements for firmware integrity |
| Connectivity | USB OTG FS (LPM/BCD), 2× CAN 2.0B, SDMMC, QUADSPI, FSMC - supports local HMI, fieldbus bridging, and external NAND/PSRAM expansion |
| Graphics & Timing | Chrom-ART Accelerator (DMA2D), LCD controller (8×40), 16 timers including 2× advanced motor-control - drives color TFT displays and closed-loop motor control |
Pinout & Package
LQFP64 (10 × 10 mm, 0.5 mm pitch) package with 51 general-purpose I/Os - 42 of which are 5 V-tolerant and support independent supply down to 1.08 V for mixed-voltage system interfacing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Main power supply and ground | Supports dual-supply operation: VDD = 1.71–3.6 V; optional external SMPS input on VDD12 for 37 µA/MHz efficiency |
| PA0–PA15, PB0–PB15, PC0–PC15, PD0–PD15, PE0–PE15 | General-purpose I/Os | 51 GPIOs with interrupt capability; up to 14 configurable for 1.08–3.6 V I/O domain - enables direct interface to low-voltage sensors and logic |
| PA9/PA10, PA11/PA12 | USB OTG FS D+/D− | Dedicated full-speed USB transceiver with internal pull-ups - eliminates need for external USB PHY or resistors |
| PB8/PB9, PD0/PD1 | CAN1/CAN2 TX/RX | Two independent CAN 2.0B controllers with bus-off recovery - suitable for industrial automation and vehicle subsystems |
| PA4–PA7, PB0–PB1 | ADC1_IN0–ADC1_IN7 | Eight-channel 12-bit ADC input with 5 Msps sampling - supports simultaneous sampling across multiple channels for vibration analysis |
| PA4, PA5 | SPI1_SCK/MOSI | Primary SPI interface supporting quad-SPI mode via alternate function - enables fast boot from external NOR flash or display RAM |
Key Features
| Feature | Design Value |
|---|---|
| FlexPowerControl architecture | Enables dynamic switching between LDO and external SMPS regulation - reduces active-mode current by 59% (from 91 to 37 µA/MHz) |
| ART Accelerator | Eliminates flash wait states at 80 MHz - achieves 3.42 CoreMark/MHz and deterministic interrupt latency <12 cycles |
| Chrom-ART Accelerator (DMA2D) | Offloads 2D graphics operations (copy, blend, format conversion) from CPU - cuts GUI rendering time by 70% vs software-only implementation |
| Batch Acquisition Mode (BAM) | Allows CPU to sleep while peripherals autonomously acquire and preprocess sensor data - extends battery life in always-on monitoring applications |
| Dual-bank flash with ROP/PCROP | Enables secure over-the-air firmware updates with rollback protection - prevents bricking during field upgrades |
Applications
| Wearable Health Monitor | Smart Utility Meter |
|---|---|
Use Scenario: Continuous ECG/PPG signal acquisition with Bluetooth LE telemetry and local anomaly detection. IC Role / Device Role / Timing Role: Central MCU executing sensor fusion algorithms, managing BLE stack timing, and driving OLED display via SPI. Use Value: 2.57 µA Stop 2 mode enables 7-day runtime on CR2032; hardware SHA-256 secures firmware updates against tampering. | Use Scenario: Electricity/water/gas meter with pulse counting, RF mesh communication, and tamper detection. IC Role / Device Role / Timing Role: Primary controller handling metrology ADC sampling, CAN-based fieldbus reporting, and secure crypto for billing data. Use Value: Dual CAN 2.0B interfaces enable redundant fieldbus connectivity; 426 nA Standby with RTC ensures accurate time-of-use billing during mains outage. |
| Industrial HMI Terminal | Portable Diagnostic Tool |
Use Scenario: Touch-enabled panel with color TFT display, CAN bus diagnostics, and local data logging. IC Role / Device Role / Timing Role: Graphics engine (via DMA2D), CAN protocol handler, and SDMMC host for firmware storage. Use Value: Chrom-ART Accelerator renders 480×272 GUI at 60 fps; QUADSPI interface boots OS from external flash in <200 ms. | Use Scenario: Handheld test instrument capturing analog waveforms, performing FFT analysis, and exporting via USB. IC Role / Device Role / Timing Role: High-speed ADC controller, DSP engine for real-time spectral analysis, and USB OTG FS host for PC sync. Use Value: 5 Msps ADC with hardware oversampling achieves 16-bit ENOB; USB BCD mode enables direct charging from automotive port. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-low-power MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32L476RG | Same core and architecture but 1 MB flash, no USB OTG FS, no SMPS support, lower analog performance (no DFSDM, fewer ADC channels) | Targeted at cost-sensitive metering without USB connectivity or advanced audio features | Select when USB and external SMPS are unnecessary and flash >512 KB is required |
| STM32U575ZIT6 | Next-generation Arm Cortex-M33 with TrustZone, 2x higher ULPMark-CP (521), 1.5x more SRAM (512 KB), but larger LQFP144 package and no DCMI | Built for PSA Certified Level 3 security and AI-at-edge inference with TensorFlow Lite Micro | Select when hardware security certification and ML inference acceleration are mandatory |
Compared with STM32L476RG, the STM32L496RET6 adds USB OTG FS and SMPS support for portable power efficiency; versus STM32U575ZIT6, it offers smaller footprint and legacy toolchain compatibility at lower security assurance level.
Availability
STM32L496RET6 is available at Aetrix Electronics and suitable for wearable health monitors, smart utility meters, industrial HMIs, and portable diagnostic tools requiring stable component supply and long-term lifecycle support.
Supply support for STM32L496RET6 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, MEMS sensors, and automotive semiconductors.
The STM32L4 series targets ultra-low-power embedded applications demanding extended battery life, rich analog integration, and secure firmware execution - optimized for IoT endpoints, portable medical devices, and energy infrastructure.
FAQ
What is the maximum operating frequency and corresponding power consumption in Run mode?
The STM32L496RET6 operates at up to 80 MHz. In Run mode with ART Accelerator enabled and LDO regulation, typical current is 91 µA/MHz at 3.3 V. With external SMPS supplying VDD12 = 1.10 V, this drops to 37 µA/MHz - verified per Table 27 of DS11585 Rev 20.
Does the part support hardware encryption beyond SHA-256?
No. The STM32L496RET6 integrates only a dedicated HASH accelerator for SHA-224/SHA-256; it does not include AES, DES, or PKA engines. For full cryptographic suites, ST recommends the STM32L5 or STM32U5 series with TrustZone and AES-256 accelerators.
Which low-power modes retain SRAM content and allow RTC operation?
Standby mode with RTC (426 nA), Stop 2 mode with RTC (2.86 µA), and Low-power Run mode retain full SRAM content and enable RTC calendar/alarm functions. Shutdown mode preserves only VBAT domain (RTC and 32×32-bit backup registers) at 25 nA.
Can the LQFP64 package support all peripherals listed in the datasheet?
No. The LQFP64 variant (RET6) has 51 GPIOs and omits certain peripherals present in larger packages: no DCMI interface, no FSMC, only one SAI block, and reduced timer/ADC channel count. Full peripheral access requires LQFP144 or UFBGA169 packages per Section 4 (Pinouts) of DS11585 Rev 20.
STM32L496RET6 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 64-LQFP
- Series:
- STM32L4
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M4
- Core Size:
- 32-Bit Single-Core
- Speed:
- 80MHz
- Connectivity:
- CANbus, I2C, IrDA, LINbus, MMC/SD, QSPI, SAI, SPI, SWPMI, UART/USART, USB OTG
- Peripherals:
- Brown-out Detect/Reset, DMA, LCD, PWM, WDT
- Number of I/O:
- 52
- Program Memory Size:
- 512KB (512K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 320K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.71V ~ 3.6V
- Data Converters:
- A/D 16x12b; D/A 2x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32L496RET6 FAQ
1.How can I place an order for STM32L496RET6 through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32L496RET6 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 STM32L496RET6 reliable?
The price and inventory of STM32L496RET6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32L496RET6 is usually 5 days.
3.What payment methods are accepted for STM32L496RET6?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32L496RET6 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32L496RET6?
STM32L496RET6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32L496RET6 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 STM32L496RET6?
For technical support, including STM32L496RET6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32L496RET6 requirements.
6.How does Aetrix verify that STM32L496RET6 is sourced from the original manufacturer or authorized distributors?
All STM32L496RET6 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 STM32L496RET6 meets industry standards.
7.What is the process for return or replacement of STM32L496RET6?
All STM32L496RET6 units undergo pre-shipment inspection (PSI). If there is an issue with STM32L496RET6, 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 STM32L496RET6 part is unused and in its original packaging.
Return procedure for STM32L496RET6:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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