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STMicroelectronics STM32L496QGI3
- Part No.:
- STM32L496QGI3
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 132-UFBGA
- Datasheet:
-
STM32L496QGI3.pdf
- Description:
- IC MCU 32BIT 1MB FLASH 132UFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:2,282
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Product details
Overview
STM32L496QGI3 from STMicroelectronics is an ultra-low-power Arm® Cortex®-M4 32-bit MCU with FPU, delivering 100 DMIPS at 80 MHz, featuring 1 MB flash, 320 KB SRAM, USB OTG FS, hardware SHA-256 acceleration, and integrated SMPS support. It targets battery-powered industrial sensors, portable medical devices, and energy-harvesting IoT endpoints requiring sub-µA standby operation and real-time audio processing.
For engineers reviewing the STM32L496QGI3 datasheet, STM32L496QGI3 pinout, STM32L496QGI3 application, or STM32L496QGI3 equivalent, key selection criteria include its 2.86 µA Stop 2 mode with RTC, 37 µA/MHz SMPS-enabled run efficiency, dual-bank flash for seamless firmware updates, and 136 I/Os with 5 V tolerance-critical for mixed-voltage system integration and long-life embedded deployments.
Technical Context
The device integrates an Adaptive Real-Time (ART) Accelerator enabling zero-wait-state execution from flash memory, coupled with a multi-AHB interconnect matrix that decouples CPU, DMA, and peripheral bus traffic to sustain deterministic real-time performance. Its FlexPowerControl architecture supports seven low-power modes-including Shutdown (25 nA), Standby with RTC (426 nA), and Stop 2 (2.57 µA)-with configurable voltage scaling and external SMPS interface for optimized energy delivery.
Peripherals are partitioned across power domains: analog blocks (ADCs, DACs, OPAMPs, COMP) operate independently with dedicated supplies down to 1.08 V; digital interfaces (USB OTG FS, SAI, CAN, QUADSPI) support concurrent high-bandwidth data paths; and the Chrom-ART Accelerator (DMA2D) offloads 2D graphics composition from the CPU in HMI applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M4 with FPU and DSP instructions, 80 MHz max frequency, 100 DMIPS performance |
| Memory | 1 MB dual-bank flash (read-while-write), 320 KB SRAM (64 KB with parity), external FSMC/QUADSPI support |
| Low-Power Modes | Shutdown: 25 nA; Standby w/RTC: 426 nA; Stop 2 w/RTC: 2.86 µA; Run mode: 37 µA/MHz (SMPS), 91 µA/MHz (LDO) |
| Analog Peripherals | 3× 12-bit ADCs (5 Msps, 16-bit oversampling), 2× 12-bit DACs, 2× OPAMPs with PGA, 2× ultra-low-power comparators |
| Digital Interfaces | USB OTG FS (LPM/BCD), 2× SAI, 4× I²C (FM+), 6× USART/LPUART, 3× SPI (1× Quad-SPI), 2× CAN 2.0B, SDMMC, SWPMI |
| Security & Acceleration | Hardware HASH (SHA-256), true RNG, CRC unit, 96-bit unique ID, memory protection unit (MPU), firewall |
| Package | UFBGA132 (7 × 7 mm, 0.4 mm pitch), 132-pin ball grid array with 136 I/Os (most 5 V-tolerant) |
Pinout & Package
UFBGA132 (7 × 7 mm, 0.4 mm pitch) package with 132 solder balls. Ball layout supports full peripheral mapping including dual CAN, USB OTG FS, two SAI interfaces, and parallel camera interface (DCMI). I/Os are grouped into four GPIO ports (GPIOA–G) with flexible alternate function remapping via AF registers.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Main power supply and ground | Core logic and I/O domain (1.71–3.6 V); separate VDDA/VSSA for analog precision |
| VBAT | Backup power supply | Supplies RTC and 32×32-bit backup registers during main power loss (320 nA quiescent) |
| PA13/PA14 | SWD debug interface | Serial Wire Debug clock/data pins; no external pull-ups required; functional in all debug-enabled modes |
| PA9/PA10 | USB OTG FS D+/D− | Differential full-speed USB transceiver; internal pull-up on PA12 enables enumeration without external components |
| PC10/PC11 | USART3 TX/RX | Asynchronous serial interface supporting LIN, IrDA, modem protocols; LPUART capability enables wake-from-Stop via RX edge |
| PD0/PD1 | OSC_IN/OSC_OUT | 4–48 MHz crystal oscillator input/output; supports external clock source or HSE bypass mode |
Key Features
| Feature | Design Value |
|---|---|
| FlexPowerControl architecture | Enables 25 nA shutdown and 2.86 µA Stop 2 with RTC-critical for multi-year battery life in remote sensors |
| ART Accelerator + dual-bank flash | Zero-wait-state execution and atomic firmware updates without application interruption |
| External SMPS interface | Direct control of external DC-DC converter (VDD12) to reduce system-level power by >50% vs. LDO-only operation |
| Dedicated Chrom-ART Accelerator (DMA2D) | Offloads bitmap blending, format conversion, and layer composition-reducing CPU load in GUI-driven HMI designs |
| Hardware SHA-256 + true RNG | Enables secure boot, firmware signature verification, and TLS handshake acceleration without software overhead |
Applications
| Industrial Sensor Node | Portable Medical Monitor |
|---|---|
Use Scenario: Wireless temperature/humidity/pressure node deployed in HVAC systems with 10-year battery life requirement. IC Role / Device Role / Timing Role: Main controller managing sensor acquisition (via 12-bit ADCs), BLE/Wi-Fi coexistence (via LPUART/USB), and ultra-low-power scheduling (Stop 2 w/RTC). Use Value: 2.86 µA Stop 2 current and 5 µs wakeup enable rapid response to alarm events while sustaining >8 years on CR2032. | Use Scenario: Handheld ECG/SpO₂ monitor requiring real-time signal processing and graphical waveform display. IC Role / Device Role / Timing Role: Signal processor (Cortex-M4 + DSP), analog front-end manager (OPAMPs, ADCs), and LCD controller (8×40 segment driver). Use Value: Integrated OPAMPs with PGA eliminate external amplification stages; Chrom-ART accelerates waveform rendering at 30 fps on monochrome LCD. |
| Smart Energy Meter | Audio-Enabled IoT Gateway |
Use Scenario: DIN-rail mounted electricity meter with tamper detection, PLC communication, and local display. IC Role / Device Role / Timing Role: System-on-chip handling metrology (ADC oversampling), secure firmware updates (dual-bank flash), and HMI (LCD + touch sensing). Use Value: Hardware SHA-256 ensures cryptographically signed field upgrades; 136 I/Os support isolated RS-485, LCD, and capacitive touch channels simultaneously. | Use Scenario: Voice-controlled home automation hub with local audio preprocessing and cloud connectivity. IC Role / Device Role / Timing Role: Audio subsystem controller (2× SAI for mic array + speaker output), USB host for dongle-based Wi-Fi, and crypto engine for secure voice payload encryption. Use Value: Dual SAI interfaces support full-duplex I²S/TDM streams; hardware HASH reduces AES-GCM compute latency by 70% vs. software-only implementation. |
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 reduced memory: 1 MB flash → 1 MB, 320 KB SRAM → 128 KB; no SMPS interface; no QUADSPI | Lacks external SMPS control and QUADSPI-unsuitable for high-density code storage or aggressive power optimization | Select when cost sensitivity outweighs need for external DC-DC control and extended memory bandwidth |
| STM32U575ZIT6 | Successor generation: Cortex-M33, TrustZone, 2.5x lower active power (18 µA/MHz), 2 MB flash, but requires new toolchain and lacks DCMI | Higher security and efficiency, but no camera interface-limits use in vision-augmented edge devices | Choose for next-gen secure IoT nodes where cryptographic isolation and lowest active power are mandatory |
Compared with STM32L476RG, the STM32L496QGI3 delivers 2.5× more SRAM and SMPS control for system-level efficiency gains; versus STM32U575ZIT6, it retains DCMI and mature ecosystem support at the cost of higher active current and no TrustZone.
Availability
STM32L496QGI3 is available at Aetrix Electronics and suitable for industrial sensor nodes, portable medical monitors, smart energy meters, and audio-enabled IoT gateways requiring stable component supply across multi-year production cycles.
Supply support for STM32L496QGI3 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, specializing in microcontrollers, power management, sensors, and automotive ICs with vertical manufacturing and broad industrial IP licensing.
The STM32L4 series targets ultra-low-power embedded applications demanding extended battery life, rich analog integration, and real-time responsiveness-designed specifically for intelligent edge devices operating under strict energy budgets.
FAQ
What is the maximum operating frequency and associated performance metric?
The STM32L496QGI3 operates at up to 80 MHz with an Adaptive Real-Time Accelerator enabling zero-wait-state flash execution. It achieves 100 DMIPS (Dhrystone 2.1) and 273.55 CoreMark® (3.42 CoreMark/MHz), validated per ARM's standardized benchmarks under typical conditions with ART enabled and cache configured.
Does this MCU support external memory expansion, and what interfaces are available?
Yes-it integrates a Flexible Static Memory Controller (FSMC) supporting SRAM, PSRAM, NOR, and NAND memories, plus a dual-flash QUADSPI interface for high-speed serial flash. Both interfaces are accessible in UFBGA132 package with dedicated pin groups, enabling boot-from-external-memory and code/data offloading without CPU intervention.
How does the power management architecture differ between LDO and SMPS operation modes?
In LDO mode, internal regulator supplies core at ~1.2 V, drawing 91 µA/MHz; in SMPS mode, external DC-DC converter supplies VDD12 at 1.1 V, reducing active current to 37 µA/MHz-a 60% reduction. The MCU directly controls SMPS enable/disable and feedback via dedicated pins (SMPS_EN, SMPS_FB), ensuring dynamic power-state coordination.
What development tools and debug interfaces are supported out-of-the-box?
The device supports Serial Wire Debug (SWD) via PA13/PA14, JTAG, and Embedded Trace Macrocell™ (ETM) for real-time instruction tracing. ST's STM32CubeIDE, STM32CubeMX, and ST-LINK/V2-1 debugger provide full initialization, code generation, and low-power mode profiling-including current measurement in Stop/Standby modes using the onboard power switch.
STM32L496QGI3 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:
- 1MB (1M 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 ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32L496QGI3 FAQ
1.How can I place an order for STM32L496QGI3 through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32L496QGI3 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 STM32L496QGI3 reliable?
The price and inventory of STM32L496QGI3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32L496QGI3 is usually 5 days.
3.What payment methods are accepted for STM32L496QGI3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32L496QGI3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32L496QGI3?
STM32L496QGI3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32L496QGI3 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 STM32L496QGI3?
For technical support, including STM32L496QGI3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32L496QGI3 requirements.
6.How does Aetrix verify that STM32L496QGI3 is sourced from the original manufacturer or authorized distributors?
All STM32L496QGI3 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 STM32L496QGI3 meets industry standards.
7.What is the process for return or replacement of STM32L496QGI3?
All STM32L496QGI3 units undergo pre-shipment inspection (PSI). If there is an issue with STM32L496QGI3, 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 STM32L496QGI3 part is unused and in its original packaging.
Return procedure for STM32L496QGI3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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