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STMicroelectronics STM32L471ZGJ6
- Part No.:
- STM32L471ZGJ6
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 144-UFBGA
- Datasheet:
-
STM32L471ZGJ6.pdf
- Description:
- IC MCU 32BIT 1MB FLASH 144UFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:865
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Product details
Overview
STM32L471ZGJ6 from STMicroelectronics is an ultra-low-power Arm® Cortex®-M4 32-bit MCU with FPU, 80 MHz max frequency, 1 MB Flash, 128 KB SRAM, and integrated analog peripherals including 3×12-bit ADCs (5 Msps), 2×12-bit DACs, 2×op-amps, and 2×comparators - deployed in battery-powered IoT sensor nodes requiring long runtime and precision signal acquisition.
For engineers reviewing the STM32L471ZGJ6 datasheet, STM32L471ZGJ6 pinout, STM32L471ZGJ6 application, or STM32L471ZGJ6 equivalent, key selection criteria include its 420 nA Standby-with-RTC current, dual-bank read-while-write Flash, ART Accelerator™ enabling zero-wait-state execution, and UFBGA144 package with 114 fast I/Os (most 5 V-tolerant).
Technical Context
The STM32L471ZGJ6 integrates an Arm Cortex-M4 core with FPU and Adaptive Real-Time Accelerator (ART™) for deterministic 0-wait-state Flash execution at 80 MHz. Its FlexPowerControl architecture supports seven low-power modes - from 30 nA Shutdown to 100 µA/MHz Run mode - with sub-µA retention in Stop 2 and RTC-enabled Standby.
It features a rich analog subsystem with independent supply domains: three 12-bit ADCs (5 Msps aggregate, hardware oversampling up to 16-bit), two rail-to-rail DACs with sample-and-hold, two operational amplifiers with programmable gain, and two ultra-low-power comparators - all co-located with 24-channel capacitive touch sensing (TSC) and four sigma-delta digital filters (DFSDM).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | Arm Cortex-M4 with FPU, 80 MHz max, 100 DMIPS, DSP instructions - enables real-time control + floating-point math in compact firmware. |
| Memory | 1 MB dual-bank Flash (read-while-write), 128 KB SRAM (32 KB with parity) - supports secure firmware updates and robust data integrity. |
| Low-Power Performance | 420 nA Standby with RTC, 1.1 µA Stop 2 mode, 4 µs wakeup - extends coin-cell or energy-harvesting device lifetime to years. |
| Analog Peripherals | 3×12-bit ADCs (5 Msps total), 2×12-bit DACs, 2×OPAMPs, 2×comparators - enables sensor signal conditioning and closed-loop analog control without external ICs. |
| Communication | 19 interfaces: 5×USART, 3×I²C, 3×SPI + Quad-SPI, 2×SAI, CAN 2.0B, SDMMC, LPUART - supports multi-sensor connectivity and audio/data streaming. |
| Package & I/O | UFBGA144 (10 × 10 mm), 114 I/Os (most 5 V-tolerant), 14 I/Os with independent 1.08–3.6 V supply - simplifies mixed-voltage board design and space-constrained layouts. |
| Security & Debug | Hardware RNG, CRC unit, 96-bit unique ID, SWD/JTAG, ETM - meets basic firmware authenticity and traceability requirements for certified endpoints. |
Pinout & Package
STM32L471ZGJ6 is housed in a 144-ball Ultra-Fine Pitch Ball Grid Array (UFBGA144) package measuring 10 mm × 10 mm with 0.8 mm ball pitch. This RoHS-compliant, ECOPACK2®-certified package supports high-density PCB layouts and thermal performance suitable for industrial and portable applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Main power supply and ground | Core and I/O domain supply (1.71–3.6 V); decoupling required per datasheet layout guidelines for noise immunity. |
| VDDA, VSSA | Analog power and ground | Dedicated 1.71–3.6 V supply for ADC/DAC/OPAMP - must be filtered separately to maintain <12-bit analog accuracy. |
| VBAT | Backup power input | Supplies RTC and 32×32-bit backup registers during main power loss; accepts 1.65–3.6 V, draws only 300 nA typical. |
| NRST | Active-low reset input | Asynchronous reset pin with internal pull-up; compatible with external reset supervisors and push-button recovery circuits. |
| PA0–PA15, PB0–PB15, etc. | General-purpose I/Os | 114 total GPIOs; most tolerate 5 V on input (even when VDD = 1.8 V), enabling direct interfacing with legacy logic and sensors. |
| PF14–PF15 | Crystal oscillator inputs | Connect 4–48 MHz HSE crystal; PF14 = OSC_IN, PF15 = OSC_OUT - critical for precise timing in communication and audio subsystems. |
Key Features
| Feature | Design Value |
|---|---|
| FlexPowerControl architecture | Seven low-power modes with validated current specs: 30 nA Shutdown, 120 nA Standby, 420 nA Standby+RTC - enables decade-scale battery life in metering and wearables. |
| ART Accelerator™ | Zero-wait-state execution from Flash at 80 MHz - eliminates cache misses and jitter in time-critical ISR handling and motor control loops. |
| Dual-bank Flash memory | Enables seamless firmware updates via bank swapping while application runs - critical for field-deployed devices requiring zero-downtime OTA upgrades. |
| Capacitive Touch Sensing (TSC) | 24-channel controller supporting touchkey, linear, and rotary sensors - replaces mechanical buttons with robust, sealed user interfaces in harsh environments. |
| Independent analog supply domain | VDDA/VSSA pins isolate ADC/DAC/OPAMP from digital noise - maintains >11.5 ENOB in 12-bit conversions without external filtering components. |
Applications
| Smart Utility Metering | Portable Medical Sensor Hub |
|---|---|
Use Scenario: Battery-powered gas/water meter with ultrasonic flow sensing, temperature compensation, and LoRaWAN telemetry. IC Role / Device Role / Timing Role: Main controller executing sensor acquisition, calibration algorithms, secure data packaging, and low-duty-cycle radio wake-up scheduling. Use Value: 420 nA Standby-with-RTC enables >10-year battery life; dual-bank Flash allows remote firmware patching without service interruption. |
Use Scenario: Wearable ECG/SpO₂ monitor with analog front-end, motion artifact cancellation, and Bluetooth LE data streaming. IC Role / Device Role / Timing Role: Signal processor managing 3×ADC channels, OPAMP-based instrumentation amplification, and real-time FIR filtering before BLE transmission. Use Value: Integrated 2×OPAMPs + 2×comparators reduce BOM count; 1.1 µA Stop 2 mode extends charge cycle between clinical-grade measurements. |
| Industrial Predictive Maintenance Node | Audio-Enabled Smart Home Sensor |
Use Scenario: Vibration and temperature monitoring node on rotating machinery, using MEMS accelerometer and thermistor, reporting via CAN bus. IC Role / Device Role / Timing Role: Edge analytics host running FFT-based spectral analysis, event-triggered logging, and CAN 2.0B communication with PLC gateway. Use Value: 100 DMIPS + FPU enables lightweight ML inference; CAN interface provides deterministic, noise-immune factory-floor connectivity. |
Use Scenario: Voice-controlled environmental sensor (CO₂, humidity, ambient light) with wake-word detection and local audio feedback via SAI-driven speaker. IC Role / Device Role / Timing Role: Audio subsystem controller managing 2×SAI interfaces, DAC-driven speaker output, and microphone ADC sampling with DMA offload. Use Value: Dual SAI peripherals support full-duplex audio I/O; 2×DAC channels enable stereo tone generation and analog volume control without external codecs. |
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 |
|---|---|---|---|
| STM32L433RCT6 | 512 KB Flash, 64 KB SRAM, no Quad-SPI, no SAI, 80-pin LQFP - lower peripheral count and memory. | Suitable for cost-sensitive, non-audio sensor nodes with simpler connectivity (no CAN/SDMMC). | Select when audio, external memory, or CAN are unnecessary - reduces BOM cost and PCB layer count. |
| STM32L552ZEJ6 | ARMv8-M TrustZone®, 512 KB Flash, 256 KB SRAM, 110 µA/MHz Run, 190 nA Standby - adds security but higher active current. | Required for applications needing hardware root-of-trust, secure boot, and encrypted firmware storage. | Choose only if PSA Level 2 or SESIP certification is mandated - trade-off is +10% active current vs. L471. |
Compared with STM32L433RCT6, the STM32L471ZGJ6 delivers 2× Flash/SRAM and full audio/CAN/Quad-SPI capability; versus STM32L552ZEJ6, it offers lower standby current and simpler security model - making it optimal for battery longevity over certified isolation.
Availability
STM32L471ZGJ6 is available at Aetrix Electronics and suitable for smart utility metering, portable medical sensor hubs, industrial predictive maintenance nodes, and audio-enabled smart home sensors requiring stable component supply across multi-year production cycles.
Supply support for STM32L471ZGJ6 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 extended battery life, rich analog integration, and real-time performance - optimized for IoT edge nodes, portable healthcare, and industrial monitoring systems.
FAQ
What is the maximum operating temperature range for STM32L471ZGJ6?
The STM32L471ZGJ6 is qualified for industrial operation from –40 °C to +105 °C (ambient temperature), with extended qualification up to +125 °C for specific variants. This rating is verified per JEDEC JESD47 and applies to the UFBGA144 package under specified voltage and derating conditions.
Does STM32L471ZGJ6 support hardware encryption acceleration?
No, the STM32L471ZGJ6 does not include dedicated cryptographic accelerators (AES, PKA, HASH). It relies on software libraries (e.g., Mbed TLS) for encryption. For hardware-accelerated crypto, consider the STM32L5 or STM32U5 series with AES-256 and PKA engines.
Can the internal 32 kHz RC oscillator replace the external LSE crystal for RTC operation?
Yes - the internal low-power 32 kHz RC oscillator (±5% accuracy) can drive the RTC, but only when absolute timekeeping accuracy is not critical. For calendar-grade timing (e.g., metering), the external 32.768 kHz crystal (LSE) is required to achieve ±20 ppm accuracy over temperature and voltage.
How many of the 114 I/Os support independent supply down to 1.08 V?
Exactly 14 I/Os (grouped as GPIO banks PG[0:13]) support independent VDDIO2 supply from 1.08 V to 3.6 V - enabling direct interface with ultra-low-voltage peripherals (e.g., certain MEMS sensors or RF transceivers) without level shifters.
STM32L471ZGJ6 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 144-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
- Peripherals:
- Brown-out Detect/Reset, DMA, PWM, WDT
- Number of I/O:
- 114
- Program Memory Size:
- 1MB (1M x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 128K 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:
STM32L471ZGJ6 FAQ
1.How can I place an order for STM32L471ZGJ6 through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32L471ZGJ6 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 STM32L471ZGJ6 reliable?
The price and inventory of STM32L471ZGJ6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32L471ZGJ6 is usually 5 days.
3.What payment methods are accepted for STM32L471ZGJ6?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32L471ZGJ6 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32L471ZGJ6?
STM32L471ZGJ6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32L471ZGJ6 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 STM32L471ZGJ6?
For technical support, including STM32L471ZGJ6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32L471ZGJ6 requirements.
6.How does Aetrix verify that STM32L471ZGJ6 is sourced from the original manufacturer or authorized distributors?
All STM32L471ZGJ6 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 STM32L471ZGJ6 meets industry standards.
7.What is the process for return or replacement of STM32L471ZGJ6?
All STM32L471ZGJ6 units undergo pre-shipment inspection (PSI). If there is an issue with STM32L471ZGJ6, 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 STM32L471ZGJ6 part is unused and in its original packaging.
Return procedure for STM32L471ZGJ6:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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