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STMicroelectronics STM32L496QEI6
- Part No.:
- STM32L496QEI6
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 132-UFBGA
- Datasheet:
-
STM32L496QEI6.pdf
- Description:
- IC MCU 32BIT 512KB FLSH 132UFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:1,958
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Product details
Overview
STM32L496QEI6 from STMicroelectronics is an ultra-low-power Arm® Cortex®-M4 32-bit MCU with FPU, 80 MHz max frequency, 1 MB flash, 320 KB SRAM, and integrated USB OTG FS, audio SAI, HASH (SHA-256), and external SMPS support. It operates from 1.71–3.6 V across –40 °C to 125 °C, delivers 100 DMIPS, and targets battery-powered industrial sensors, portable medical devices, and smart metering endpoints requiring long runtime and cryptographic security.
For engineers reviewing the STM32L496QEI6 datasheet, STM32L496QEI6 pinout, STM32L496QEI6 application, or STM32L496QEI6 equivalent, key selection criteria include its 25 nA shutdown current, dual-bank read-while-write flash, hardware parity-protected SRAM, Chrom-ART Accelerator for GUI rendering, and dual CAN 2.0B interfaces - all in a compact UFBGA132 (7 × 7 mm) package.
Technical Context
The STM32L496QEI6 integrates an Adaptive Real-time Accelerator (ART) enabling zero-wait-state execution from flash at 80 MHz, alongside three independent PLLs for system, USB, and audio clock domains. Its FlexPowerControl architecture supports seven low-power modes - including Stop 2 (2.57 µA) and Standby with RTC (426 nA) - managed via hardware-controlled voltage scaling and dynamic power gating.
Analog subsystem includes three 12-bit ADCs (5 Msps aggregate), two 12-bit DACs, two rail-to-rail op-amps with programmable gain, and two ultra-low-power comparators - all supported by independent analog supply domains. The interconnect matrix enables concurrent peripheral access without bus contention, while the firewall and ROP provide hardware-enforced code protection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | Arm Cortex-M4 with FPU, 80 MHz max, 100 DMIPS - enables real-time DSP and control algorithms without external co-processors. |
| Memory | 1 MB dual-bank flash (read-while-write), 320 KB SRAM (64 KB with hardware parity) - supports secure firmware updates and robust data logging. |
| Low-Power Performance | 25 nA shutdown mode, 2.57 µA Stop 2 mode, 37 µA/MHz run mode (SMPS) - extends battery life in intermittent-sensing applications. |
| Analog Peripherals | 3× 12-bit ADCs (5 Msps), 2× 12-bit DACs, 2× op-amps, 2× comparators - enables sensor signal conditioning and closed-loop control in single-chip designs. |
| Connectivity | USB OTG FS, 2× SAI, 4× I²C, 6× USART/LPUART, 3× SPI, 2× CAN 2.0B, SDMMC - supports multi-protocol edge node communication. |
| Security & Acceleration | HASH (SHA-256), true RNG, 96-bit unique ID, CRC unit - provides hardware-rooted trust for firmware authentication and secure data transmission. |
| Package | UFBGA132 (7 × 7 mm, 0.4 mm pitch) - balances high I/O count (up to 136 fast I/Os, most 5 V-tolerant) with space-constrained PCB layouts. |
Pinout & Package
UFBGA132 (7 × 7 mm, 0.4 mm pitch) package with 132 solder balls. Ball pitch and mechanical dimensions comply with JEDEC MO-277AA standard. Thermal resistance θJA = 32 °C/W (on 4-layer board per JEDEC 51-7).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDIO2 | Main, analog, and I/O supply rails | Independent power domains enable noise isolation for ADC/DAC and allow mixed-voltage I/O (down to 1.08 V on 14 pins). |
| VSS, VSSA, VSSIO2 | Ground returns | Dedicated analog ground (VSSA) and separate I/O ground (VSSIO2) minimize coupling noise in precision measurement paths. |
| PA0–PA15, PB0–PB15, etc. | General-purpose I/Os | Up to 136 fast I/Os with configurable pull-up/down, alternate functions, and 5 V tolerance - simplifies level-shifting in mixed-voltage systems. |
| PC13–PC15 | RTC oscillator inputs | Support 32.768 kHz crystal (LSE) for autonomous calendar and alarm functions during standby with RTC enabled. |
| PA11/PA12 | USB OTG FS D+/D− | Full-speed USB 2.0 physical layer with built-in transceivers - eliminates need for external PHY in USB device/host applications. |
| PD0/PD1 | HSE oscillator inputs | Support 4–48 MHz crystal for high-accuracy system clock; optional bypass mode for external clock source. |
Key Features
| Feature | Design Value |
|---|---|
| FlexPowerControl architecture | Enables 7 low-power modes with sub-µA quiescent currents and 5 µs wakeup - critical for duty-cycled IoT endpoints. |
| Chrom-ART Accelerator (DMA2D) | Hardware-accelerated 2D graphics composition offloads CPU during GUI rendering - reduces frame buffer memory bandwidth and CPU load. |
| Batch Acquisition Mode (BAM) | Allows peripherals (ADC, timers, UART) to operate autonomously in low-power run mode while CPU sleeps - extends sensing interval without CPU wakeups. |
| Dual-flash QUADSPI interface | Direct XIP and execute-in-place capability from external serial flash - expands code storage beyond internal 1 MB without external parallel memory. |
| Touch Sensing Controller (TSC) | 24-channel capacitive sensing with hardware charge transfer - enables robust touchkey, slider, and rotary controls without external ICs or calibration overhead. |
Applications
| Smart Utility Meter | Portable ECG Monitor |
|---|---|
Use Scenario: Battery-powered electricity/water/gas meter collecting consumption data hourly and transmitting via NB-IoT or LoRaWAN. IC Role / Device Role / Timing Role: Main controller managing metrology ADC sampling, secure firmware updates via HASH/RNG, RTC-based time-stamping, and low-power wireless stack execution. Use Value: 25 nA shutdown and 426 nA RTC standby extend 10-year battery life; dual CAN supports legacy AMI infrastructure integration. | Use Scenario: Handheld clinical device acquiring 3-lead ECG signals, performing real-time QRS detection, and storing waveform data locally. IC Role / Device Role / Timing Role: Signal acquisition hub using 3× ADCs (5 Msps aggregate), 2× op-amps for front-end amplification, and DMA-driven circular buffering into SRAM. Use Value: Hardware parity on 64 KB SRAM ensures data integrity during long-term waveform logging; Chrom-ART renders UI overlays without CPU intervention. |
| Industrial Predictive Maintenance Sensor | Secure Access Control Terminal |
Use Scenario: Vibration and temperature sensor node mounted on motor housing, performing FFT analysis and sending alerts via RS-485/CAN. IC Role / Device Role / Timing Role: Edge AI inference accelerator running lightweight ML models on sensor fusion data, with watchdog supervision and brownout reset protection. Use Value: ART Accelerator enables 80 MHz deterministic execution from flash; 2× CAN 2.0B interfaces allow direct connection to PLC networks and diagnostic tools. | Use Scenario: Door controller authenticating RFID/NFC credentials, logging access events, and enforcing multi-factor unlock policies. IC Role / Device Role / Timing Role: Secure root-of-trust executing encrypted credential verification, SHA-256 hashing of biometric templates, and tamper-detect GPIO monitoring. Use Value: Hardware HASH + true RNG + 96-bit UID enables FIPS-compliant key derivation; firewall prevents unauthorized access to protected memory regions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-low-power Arm Cortex-M4 MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32L4R9AII6 | 2 MB flash, 640 KB SRAM, LCD-TFT controller, no external SMPS support | Better suited for high-resolution color display HMI; lacks SMPS interface for ultra-low-power battery operation | Select when GUI complexity demands >1 MB code space and TFT driving, not when sub-µA standby is mandatory. |
| STM32L562QEI6 | ARM TrustZone®, 512 KB flash, 256 KB SRAM, VDD=1.71–3.6 V, 1.7 µA Stop mode | Hardware-isolated secure world for confidential computing; lower memory but higher security certification readiness | Select when PSA Certified Level 3 or SESIP certification is required, not when maximum analog integration is primary. |
Compared with STM32L4R9AII6, the STM32L496QEI6 offers superior ultra-low-power operation (25 nA vs. 100 nA shutdown) and SMPS support for extended battery life, while the STM32L562QEI6 trades flash/SRAM capacity for hardware-enforced security isolation - making the L496 optimal for cost-sensitive, power-constrained industrial sensing where cryptographic acceleration suffices.
Availability
STM32L496QEI6 is available at Aetrix Electronics and suitable for smart utility meters, portable medical diagnostics, and industrial predictive maintenance sensors requiring stable component supply and long-term lifecycle assurance.
Supply support for STM32L496QEI6 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 automotive semiconductors since 1987.
The STM32L4 series targets ultra-low-power embedded applications demanding high performance-per-milliwatt, featuring advanced power gating, flexible clock trees, and integrated analog peripherals - optimized for battery-operated industrial, healthcare, and metering equipment.
FAQ
What is the maximum operating temperature range for STM32L496QEI6?
The STM32L496QEI6 is qualified for industrial and extended temperature ranges: –40 °C to +85 °C (industrial) and –40 °C to +125 °C (extended). This is confirmed in Section 6.3.1 of DS11585 Rev 20, with thermal derating applied above 85 °C for sustained operation under full peripheral load.
Does STM32L496QEI6 support external quad-SPI flash memory?
Yes - it integrates a dedicated QUADSPI interface supporting XIP (execute-in-place), memory-mapped mode, and indirect mode for up to 4-byte address space. The interface complies with JEDEC JESD216B and supports single/dual/quad I/O protocols with hardware wrap-around addressing.
How many independent ADC instances does STM32L496QEI6 include?
The STM32L496QEI6 includes three independent 12-bit ADCs (ADC1, ADC2, ADC3), each with up to 16 channels, hardware oversampling up to 16×, and simultaneous sampling capability. Total aggregate sampling rate reaches 5 Msps when synchronized, as specified in Section 3.17 of the datasheet.
Is the UFBGA132 package of STM32L496QEI6 RoHS and REACH compliant?
Yes - the UFBGA132 package (marking code A0G8) meets RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006. Lead-free matte tin finish, halogen-free molding compound, and full substance declaration are provided in ST's official material compliance documentation (DocID27949).
STM32L496QEI6 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 132-UFBGA
- 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:
- 110
- 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 19x12b; D/A 2x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32L496QEI6 FAQ
1.How can I place an order for STM32L496QEI6 through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32L496QEI6 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 STM32L496QEI6 reliable?
The price and inventory of STM32L496QEI6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32L496QEI6 is usually 5 days.
3.What payment methods are accepted for STM32L496QEI6?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32L496QEI6 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32L496QEI6?
STM32L496QEI6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32L496QEI6 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 STM32L496QEI6?
For technical support, including STM32L496QEI6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32L496QEI6 requirements.
6.How does Aetrix verify that STM32L496QEI6 is sourced from the original manufacturer or authorized distributors?
All STM32L496QEI6 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 STM32L496QEI6 meets industry standards.
7.What is the process for return or replacement of STM32L496QEI6?
All STM32L496QEI6 units undergo pre-shipment inspection (PSI). If there is an issue with STM32L496QEI6, 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 STM32L496QEI6 part is unused and in its original packaging.
Return procedure for STM32L496QEI6:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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