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STMicroelectronics STM32L4A6QGI6
- Part No.:
- STM32L4A6QGI6
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 132-UFBGA
- Datasheet:
-
STM32L4A6QGI6.pdf
- Description:
- IC MCU 32BIT 1MB FLASH 132UFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:5,346
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Product details
Overview
STM32L4A6QGI6 from STMicroelectronics is an ultra-low-power Arm® Cortex®-M4 32-bit MCU with FPU, 1 MB flash, 320 KB SRAM, USB OTG FS, hardware AES+HASH encryption, and integrated SMPS support. It operates from 1.71–3.6 V across –40 °C to 125 °C, delivers 100 DMIPS at 80 MHz, and targets battery-powered industrial sensors and portable medical devices requiring secure, real-time processing with extended runtime.
For engineers reviewing the STM32L4A6QGI6 datasheet, STM32L4A6QGI6 pinout, STM32L4A6QGI6 application, or STM32L4A6QGI6 equivalent, key selection criteria include its 37 µA/MHz SMPS-enabled run mode, dual-bank read-while-write flash, Chrom-ART Accelerator for GUI rendering, and 24-channel capacitive touch sensing - all in a compact UFBGA132 (7 × 7 mm) package.
Technical Context
The device integrates an Adaptive Real-time Accelerator (ART™) enabling zero-wait-state execution from flash at 80 MHz, and features 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 Shutdown (25 nA), with 5 wakeup pins and 5 µs wake-up latency.
Analog subsystem includes three 12-bit ADCs (5 Msps), two 12-bit DACs, two op-amps with PGA, and two ultra-low-power comparators - all supported by independent analog supply rails. Communication stack comprises dual CAN 2.0B, USB OTG FS, two SAIs, five USARTs (including LPUART), and Quad SPI for external memory expansion.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | Arm Cortex-M4 with FPU, 80 MHz max frequency, 100 DMIPS performance |
| Memory | 1 MB dual-bank flash (read-while-write), 320 KB SRAM (64 KB with parity) |
| Power Efficiency | 37 µA/MHz in SMPS-run mode; 2.57 µA in Stop 2 mode |
| Crypto Engine | Dedicated AES-128/256 and SHA-256 hardware accelerators |
| ADC/DAC | 3× 12-bit ADCs (5 Msps), 2× 12-bit DACs with sample-and-hold |
| Timers | 16 timers: 2 advanced motor-control, 5 general-purpose 16-bit, 2 low-power 16-bit |
| Package | UFBGA132 (7 × 7 mm, 0.4 mm pitch), RoHS-compliant, industrial temp grade |
Pinout & Package
STM32L4A6QGI6 is housed in a 132-ball Ultra-Fine-Pitch Ball Grid Array (UFBGA132) package with 0.4 mm ball pitch and 7 mm × 7 mm body size, optimized for high-density PCB layouts and thermal performance in space-constrained applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDIO2 | Main, analog, and I/O power supplies | Supports flexible power domain partitioning: VDDA powers analog peripherals independently; VDDIO2 enables 1.08–3.6 V I/O voltage scaling |
| VSS, VSSA | Digital and analog ground returns | Separate analog/digital ground planes required for noise-sensitive ADC/DAC operation |
| PA0–PA15, PB0–PB15, etc. | General-purpose I/Os | Up to 136 fast I/Os; most 5 V-tolerant; up to 14 configurable for independent 1.08 V supply |
| PC13–PC15 | RTC-related functions | PC13 = RTC_OUT/ALARM; PC14/PC15 = 32.768 kHz crystal oscillator (LSE) inputs |
| PA9/PA10 | USB OTG FS D+/D− | Dedicated full-speed USB transceiver pins with internal pull-ups; no external PHY required |
| PB8/PB9 | I²C1 SCL/SDA | Fast-mode Plus (1 Mbit/s) I²C interface with SMBus/PMBus support and timeout detection |
Key Features
| Feature | Design Value |
|---|---|
| FlexPowerControl architecture | Enables 25 nA shutdown mode with 5 dedicated wakeup pins and 5 µs wake-up from Stop mode |
| ART Accelerator™ | Eliminates flash wait states at 80 MHz, enabling deterministic real-time code execution without SRAM caching overhead |
| Chrom-ART Accelerator (DMA2D) | Hardware-accelerated 2D graphics composition reduces CPU load for GUI rendering in HMI applications |
| Dual-bank flash with RWW | Allows firmware updates via background bank while application runs from active bank - critical for fail-safe OTA updates |
| Capacitive touch controller (TSC) | 24-channel hardware touch sensing supporting touchkey, linear, and rotary sensors without external components |
| External SMPS interface | Dedicated control signals (VDD12, VDD12_STBY, SMPS_EN) enable direct integration of external DC-DC converters for >30% system-level power savings |
Applications
| Industrial Sensor Node | Portable Medical Monitor |
|---|---|
Use Scenario: Battery-operated wireless temperature/humidity/pressure sensor node with BLE gateway interface and local data logging. IC Role / Device Role / Timing Role: Primary application processor managing sensor acquisition, AES-encrypted data packaging, USB/UART firmware updates, and low-power scheduling via LPTIM. Use Value: 2.57 µA Stop 2 mode extends 2xAA battery life to >5 years; dual-bank flash enables robust field firmware upgrades without service interruption. | Use Scenario: Handheld ECG/SpO₂ monitor with color LCD, touch UI, and clinical-grade signal acquisition. IC Role / Device Role / Timing Role: System-on-chip integrating analog front-end (ADC/DAC/op-amps), display controller (LCD + Chrom-ART), and secure data export via USB OTG. Use Value: Independent VDDA rail and hardware oversampling (up to 16-bit) ensure <10 µV RMS noise in biopotential measurement; 320 KB SRAM buffers multi-lead waveform data. |
| Smart Utility Meter | Audio-Enabled IoT Gateway |
Use Scenario: UL-certified electricity/water meter with tamper detection, PLC or RF mesh backhaul, and cryptographic metering data signing. IC Role / Device Role / Timing Role: Secure host MCU executing DLMS/COSEM stack, performing SHA-256 signature generation, and managing real-time tariff switching via RTC calendar. Use Value: Hardware AES+HASH accelerators reduce crypto latency by 90% vs. software-only; RTC with HW calendar ensures accurate billing time stamps across power cycles. | Use Scenario: Voice-controlled smart home hub with microphone array, audio preprocessing, and dual-SAI interfacing to codec and speaker amplifier. IC Role / Device Role / Timing Role: Audio subsystem controller handling I²S/TDM streams, sigma-delta filtering (DFSDM), and low-latency DSP via Cortex-M4 FPU. Use Value: Two SAIs support simultaneous input (mic array) and output (speaker) with independent clock domains; DFSDM enables high-SNR digital microphone interface without external decimation filters. |
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 |
|---|---|---|---|
| STM32L4R9AII6 | 2 MB flash, 640 KB SRAM, LCD-TFT controller, no SMPS interface | Better suited for high-resolution graphical HMIs; lacks external SMPS control for ultra-low-power battery systems | Select when display complexity outweighs battery life requirements |
| STM32L562QEJ6 | ARM TrustZone®, 512 KB flash, 256 KB SRAM, VDD=1.71–3.6 V, 110 µA/MHz (SMPS) | Hardware security certification (PSA Level 3, SESIP), but higher active current and reduced peripheral count (no DCMI, single SAI) | Select when secure boot, encrypted storage, and attestation are mandatory over analog feature depth |
Compared with STM32L4R9AII6 and STM32L562QEJ6, the STM32L4A6QGI6 uniquely balances ultra-low active and sleep currents (37 µA/MHz, 2.57 µA Stop 2), rich analog integration (3 ADCs, 2 DACs, 2 op-amps), and SMPS interface - making it optimal for cost-sensitive, battery-critical applications needing both precision sensing and moderate GUI capability.
Availability
STM32L4A6QGI6 is available at Aetrix Electronics and suitable for industrial sensor nodes, portable medical monitors, smart utility meters, and audio-enabled IoT gateways requiring stable component supply and long-term manufacturability.
Supply support for STM32L4A6QGI6 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 strong focus on energy efficiency and industrial reliability.
The STM32L4 series is designed for ultra-low-power embedded applications demanding high performance-per-milliwatt, advanced security, and rich analog/mixed-signal integration - targeting battery-powered and energy-harvesting systems.
FAQ
What is the maximum operating temperature range for STM32L4A6QGI6?
The STM32L4A6QGI6 is qualified for industrial operation from –40 °C to +125 °C ambient temperature, validated per ST's AEC-Q100 stress testing methodology. This extended range supports deployment in harsh environments such as smart meters, motor drives, and under-hood automotive auxiliary modules where thermal margin is critical.
Does STM32L4A6QGI6 support external QSPI flash memory?
Yes, STM32L4A6QGI6 integrates a dedicated Dual-flash Quad SPI memory interface compliant with JEDEC JESD216 standards. It supports XIP (execute-in-place), memory-mapped mode, and dual-flash interleaving - enabling seamless expansion of code/data space beyond on-chip flash without additional glue logic or address decoding.
How many independent power domains does STM32L4A6QGI6 support?
STM32L4A6QGI6 supports four independent power domains: VDD (core/I/O), VDDA (analog), VDDIO2 (flexible I/O supply down to 1.08 V), and VBAT (RTC/backup registers). This separation allows precise noise isolation for ADC/DAC operation and dynamic I/O voltage scaling to match peripheral interface requirements.
Can the Chrom-ART Accelerator be used for non-LCD applications?
Yes, the Chrom-ART Accelerator (DMA2D) operates independently of the LCD controller and supports memory-to-memory, memory-to-peripheral, and peripheral-to-memory transfers. It accelerates bitmap blending, image format conversion (ARGB8888 ↔ RGB565), and alpha-blending operations - widely used in GUI toolkits like TouchGFX for overlay rendering on SPI-driven OLED or e-Ink displays.
STM32L4A6QGI6 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, (External SMPS Required)
- 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 ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32L4A6QGI6 FAQ
1.How can I place an order for STM32L4A6QGI6 through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32L4A6QGI6 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 STM32L4A6QGI6 reliable?
The price and inventory of STM32L4A6QGI6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32L4A6QGI6 is usually 5 days.
3.What payment methods are accepted for STM32L4A6QGI6?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32L4A6QGI6 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32L4A6QGI6?
STM32L4A6QGI6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32L4A6QGI6 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 STM32L4A6QGI6?
For technical support, including STM32L4A6QGI6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32L4A6QGI6 requirements.
6.How does Aetrix verify that STM32L4A6QGI6 is sourced from the original manufacturer or authorized distributors?
All STM32L4A6QGI6 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 STM32L4A6QGI6 meets industry standards.
7.What is the process for return or replacement of STM32L4A6QGI6?
All STM32L4A6QGI6 units undergo pre-shipment inspection (PSI). If there is an issue with STM32L4A6QGI6, 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 STM32L4A6QGI6 part is unused and in its original packaging.
Return procedure for STM32L4A6QGI6:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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