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STMicroelectronics STM32L496ZET6
- Part No.:
- STM32L496ZET6
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 144-LQFP
- Datasheet:
-
STM32L496ZET6.pdf
- Description:
- IC MCU 32BIT 512KB FLASH 144LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:525
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Product details
Overview
STM32L496ZET6 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 - deployed in battery-powered medical sensors and portable HMI terminals requiring extended runtime and secure firmware updates.
For engineers reviewing the STM32L496ZET6 datasheet, STM32L496ZET6 pinout, STM32L496ZET6 application, or STM32L496ZET6 equivalent, key selection criteria include its 2.57 µA Stop 2 mode current, dual-bank read-while-write flash, Chrom-ART Accelerator for GUI rendering, and 136 I/Os with 5 V tolerance - all validated for industrial edge nodes and energy-harvesting IoT endpoints.
Technical Context
The STM32L496ZET6 integrates an Adaptive Real-Time (ART) Accelerator enabling zero-wait-state execution from flash at 80 MHz, alongside a multi-layer AHB bus matrix for concurrent peripheral access. Its FlexPowerControl architecture supports dynamic voltage scaling across six low-power modes, including Shutdown (25 nA), Standby with RTC (426 nA), and Stop 2 with 5 µs wakeup latency.
It features three independent PLLs - one for system clock, one for USB/OTG, and one for audio SAI - plus dual-clock recovery (CRS) synchronized to USB SOF or LSE. The analog subsystem includes three 12-bit ADCs (5 Msps aggregate), two 12-bit DACs, two op-amps with PGA, and two ultra-low-power comparators - all operable from dedicated 1.08–3.6 V supplies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M4 with FPU, 80 MHz max, 100 DMIPS - enables real-time DSP and control algorithms without external co-processor |
| Flash Memory | 512 KB dual-bank, read-while-write - allows seamless firmware updates and secure OTA patching |
| SRAM | 320 KB total, including 64 KB with hardware parity - supports robust data buffering and fault-tolerant operation |
| Low-Power Run Current | 37 µA/MHz (SMPS mode) - reduces battery drain in always-on sensor aggregation nodes |
| Stop 2 Mode Current | 2.57 µA - extends shelf life and operational runtime in intermittently active devices |
| USB Interface | USB OTG FS with LPM and BCD - enables direct battery charging and host/peripheral role switching |
| Crypto Acceleration | Hardware SHA-256 (HASH) - offloads secure boot verification and firmware signature validation |
Pinout & Package
LQFP144 (20 × 20 mm, 0.5 mm pitch) package with 136 user I/Os, 5 V-tolerant on most pins, and independent VDDIO2 supply down to 1.08 V for interfacing with low-voltage peripherals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Main power and ground | Core logic supply (1.71–3.6 V); decoupling required per STM32L496xx layout guidelines |
| VREF+, VREF- | Analog reference inputs | Enable precise 12-bit ADC/DAC conversions with external or internal VREFINT source |
| PA0–PA15, PB0–PB15, etc. | General-purpose I/Os | 136 fast GPIOs supporting multiple alternate functions (USART, SPI, I2C, CAN, SAI) |
| PC13–PC15 | RTC oscillator pins | Connect 32.768 kHz crystal for calendar, alarms, and tamper detection with backup domain retention |
| PA11/PA12 | USB D+/D− | Differential full-speed USB 2.0 interface with integrated transceivers and pull-up control |
| PF0–PF15 | Flexible static memory controller (FSMC) | Interface external NOR/PSRAM/NAND with 8/16-bit data bus and address multiplexing |
Key Features
| Feature | Design Value |
|---|---|
| Adaptive Real-Time Accelerator (ART) | Enables 0-wait-state execution from flash at 80 MHz - eliminates cache misses in deterministic control loops |
| Chrom-ART Accelerator (DMA2D) | Hardware-accelerated 2D graphics composition - reduces CPU load by >70% in GUI rendering for touch HMIs |
| Batch Acquisition Mode (BAM) | Permits autonomous peripheral data capture during low-power run - ideal for sensor fusion without waking CPU |
| Dual-Flash QUADSPI Interface | Direct XIP execution from external serial flash - expands code space beyond on-chip 512 KB while maintaining performance |
| True Random Number Generator (RNG) | FIPS-compliant entropy source - satisfies cryptographic key generation requirements for TLS and secure boot |
Applications
| Wearable Health Monitor | Smart Energy Meter |
|---|---|
Use Scenario: Continuous ECG/PPG signal acquisition with Bluetooth LE telemetry and local anomaly detection. IC Role / Device Role / Timing Role: Main application processor executing sensor fusion, crypto-secured OTA updates, and real-time display refresh via DMA2D. Use Value: 2.57 µA Stop 2 mode extends battery life to >12 months; SHA-256 accelerator validates firmware signatures in <10 ms. | Use Scenario: Grid-connected meter with tamper detection, PLC communication, and secure tariff update over DLMS/COSEM. IC Role / Device Role / Timing Role: Secure host controller managing metrology ADCs, isolated RS-485/CAN, and encrypted secure storage. Use Value: Dual-bank flash enables atomic firmware rollback; 5 V-tolerant I/Os interface directly with legacy metering ICs. |
| Industrial HMI Terminal | Asset Tracking Beacon |
Use Scenario: Local touchscreen interface for PLC configuration with offline recipe storage and alarm logging. IC Role / Device Role / Timing Role: Graphics-capable MCU driving 480×272 LCD via FSMC, handling capacitive touch via TSC, and managing SDMMC data logs. Use Value: Chrom-ART Accelerator renders UI transitions in <16 ms; 136 GPIOs support expansion headers and CAN diagnostics. | Use Scenario: GPS/GNSS + cellular (LTE-M) tracker with motion-triggered wake, temperature logging, and geofence alerts. IC Role / Device Role / Timing Role: Ultra-low-power coordinator managing GNSS cold start, LTE modem control, and sensor sampling bursts. Use Value: 25 nA Shutdown mode preserves coin-cell charge for >5 years; LPTIM2 provides precise 1-second wakeup intervals. |
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, 1 MB flash, no SMPS support, 128 KB SRAM, no QUADSPI | Lacks external power management integration and serial flash XIP capability | Select when higher flash density is needed but external SMPS is not used |
| STM32U575ZIT6 | Arm Cortex-M33, TrustZone, 2 MB flash, 786 KB SRAM, 1.5x lower Stop mode current (1.1 µA) | Requires secure boot configuration and lacks Chrom-ART; targets higher-security applications | Select for PSA Level 3 certified designs where security outweighs GUI acceleration needs |
Compared with STM32L476RG, the STM32L496ZET6 adds SMPS control and QUADSPI for power-efficient external code storage; versus STM32U575ZIT6, it trades TrustZone for proven Chrom-ART and broader analog peripheral integration - making it optimal for cost-sensitive, graphics-enabled industrial edge devices.
Availability
STM32L496ZET6 is available at Aetrix Electronics and suitable for wearable health monitors, smart energy meters, industrial HMI terminals, and asset tracking beacons requiring stable component supply across multi-year production cycles.
Supply support for STM32L496ZET6 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, designing and manufacturing microcontrollers, power management ICs, sensors, and analog products for industrial, automotive, and consumer markets.
The STM32L4 series targets ultra-low-power embedded applications demanding high performance-per-milliwatt, extended battery life, and rich peripheral integration - especially where GUI, security, and mixed-signal processing converge.
FAQ
What is the maximum operating frequency and associated power consumption in Run mode?
The STM32L496ZET6 operates at up to 80 MHz. In Run mode with SMPS enabled and ART Accelerator active, it consumes 37 µA/MHz at 3.3 V - translating to ~2.96 mA total at full speed. This value is measured with code executing from flash, cache enabled, and all peripherals idle except system clock tree.
Does STM32L496ZET6 support external memory interfaces, and which types are validated?
Yes - it integrates a Flexible Static Memory Controller (FSMC) supporting SRAM, PSRAM, NOR, and NAND memories with 8/16-bit data bus and asynchronous/synchronous timing. It also includes a QUADSPI interface for XIP-capable serial flash (e.g., Micron MT25QL, Winbond W25Q) with dual-flash addressing.
How many I/O pins are 5 V-tolerant, and what is the minimum I/O supply voltage?
Up to 136 I/Os are 5 V-tolerant when VDDIO2 ≥ 2.0 V. The device supports independent I/O supply down to 1.08 V on VDDIO2, enabling direct interfacing with sub-1.2 V logic families such as certain low-power sensors and displays without level shifters.
What hardware security features does STM32L496ZET6 provide beyond SHA-256?
Beyond the HASH (SHA-256) accelerator, it includes a True Random Number Generator (RNG) compliant with NIST SP800-90B, 96-bit unique ID, readout protection (RDP) levels, firewall for peripheral access control, and secure bootloader with public-key signature verification - all supported by STM32CubeProgrammer and STM32HSM tools.
STM32L496ZET6 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 144-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, EBI/EMI, 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:
- 115
- 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 24x12b; D/A 2x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32L496ZET6 FAQ
1.How can I place an order for STM32L496ZET6 through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32L496ZET6 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 STM32L496ZET6 reliable?
The price and inventory of STM32L496ZET6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32L496ZET6 is usually 5 days.
3.What payment methods are accepted for STM32L496ZET6?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32L496ZET6 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32L496ZET6?
STM32L496ZET6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32L496ZET6 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 STM32L496ZET6?
For technical support, including STM32L496ZET6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32L496ZET6 requirements.
6.How does Aetrix verify that STM32L496ZET6 is sourced from the original manufacturer or authorized distributors?
All STM32L496ZET6 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 STM32L496ZET6 meets industry standards.
7.What is the process for return or replacement of STM32L496ZET6?
All STM32L496ZET6 units undergo pre-shipment inspection (PSI). If there is an issue with STM32L496ZET6, 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 STM32L496ZET6 part is unused and in its original packaging.
Return procedure for STM32L496ZET6:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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