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STMicroelectronics STM32L471RGT6TR
- Part No.:
- STM32L471RGT6TR
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
STM32L471RGT6TR.pdf
- Description:
- IC MCU 32BIT 1MB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,611
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Product details
Overview
STM32L471RGT6TR from STMicroelectronics is an ultra-low-power Arm® Cortex®-M4 32-bit MCU with FPU, operating up to 80 MHz (100 DMIPS), featuring 1 MB Flash, 128 KB SRAM, and integrated analog peripherals including dual 12-bit DACs, triple 12-bit ADCs, two op-amps, and two ultra-low-power comparators. It supports audio via dual SAI interfaces and real-time control via advanced motor-control timers, targeting battery-powered IoT sensor nodes and portable medical devices.
For engineers reviewing the STM32L471RGT6TR datasheet, STM32L471RGT6TR pinout, STM32L471RGT6TR application, or STM32L471RGT6TR equivalent, key selection criteria include its 30 nA shutdown current, 420 nA standby-with-RTC power, dual-bank read-while-write Flash architecture, LQFP64 package compatibility, and CAN 2.0B interface support for industrial edge nodes.
Technical Context
The device implements an Adaptive Real-time Accelerator (ART Accelerator™) enabling zero-wait-state execution from Flash at 80 MHz, paired with a memory protection unit (MPU) and interconnect matrix for deterministic peripheral access. Its FlexPowerControl architecture delivers graded low-power modes - from 30 nA Shutdown to 100 µA/MHz Run mode - with hardware calendar RTC and batch acquisition mode (BAM) for sensor data aggregation.
Clock system includes three PLLs (system/audio/ADC), four oscillator sources (HSE/LSE/HSI16/MSI), and auto-trimming of MSI by LSE for ±0.25% accuracy. Analog subsystem features independent supply domains, sigma-delta digital filters (DFSDM), and capacitive touch sensing (24 channels), enabling mixed-signal operation without digital noise coupling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | Arm Cortex-M4 with FPU, 80 MHz max, 100 DMIPS - enables real-time DSP and floating-point math in resource-constrained edge nodes. |
| Memory | 1 MB dual-bank Flash (read-while-write), 128 KB SRAM (32 KB with parity) - supports secure firmware updates and fault-tolerant data logging. |
| Low-Power Performance | 30 nA Shutdown, 420 nA Standby with RTC - extends battery life to years in always-on sensor endpoints. |
| Analog Peripherals | 3× 12-bit ADC (5 Msps), 2× 12-bit DAC, 2× op-amps, 2× comparators - enables closed-loop analog signal conditioning without external components. |
| Communication | 2× SAI, 5× USART, 1× LPUART, 3× I²C, 3× SPI, 1× QuadSPI, CAN 2.0B - supports audio streaming, wired telemetry, and fieldbus interoperability. |
| Package | LQFP64 (10 × 10 mm), ECOPACK2® compliant - provides standard PCB assembly compatibility and thermal reliability for industrial environments. |
Pinout & Package
LQFP64 package with 64-pin quad flat pack, 0.5 mm pitch, exposed thermal pad, RoHS-compliant and ECOPACK2® certified. Designed for reflow soldering and mechanical stability in vibration-prone applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual 1.71–3.6 V supply rails with independent analog/digital domains - enables noise-isolated mixed-signal operation. |
| PA0–PA15, PB0–PB15, PC0–PC15, PD0–PD15 | General-purpose I/O | Up to 51 fast I/Os (most 5 V-tolerant), configurable as GPIO, AF, or event inputs - supports flexible peripheral routing and wake-up from Stop mode. |
| NRST | Reset input | Active-low reset with internal pull-up - ensures reliable power-on initialization and brown-out recovery. |
| BOOT0 | Boot mode select | Configures boot source (system memory, Flash, or SRAM) at power-up - essential for bootloader deployment and field firmware recovery. |
| SWDIO/SWCLK | Debug interface | 2-pin Serial Wire Debug (SWD) - enables non-intrusive programming, real-time tracing, and low-pin-count debug in space-constrained designs. |
Key Features
| Feature | Design Value |
|---|---|
| FlexPowerControl architecture | Graded low-power modes (Shutdown/Stop/Standby/Run) with sub-µA RTC retention - eliminates need for external RTC IC in portable equipment. |
| ART Accelerator™ | Zero-wait-state Flash execution at 80 MHz - removes performance penalty of on-chip code storage, enabling deterministic real-time response. |
| Dual-bank Flash memory | Simultaneous read/write across banks - allows seamless over-the-air (OTA) firmware updates without service interruption. |
| Capacitive touch sensing (TSC) | 24-channel controller supporting touchkey, linear, and rotary sensors - replaces mechanical buttons and reduces BOM cost in HMI applications. |
| True random number generator (RNG) | NIST SP800-90B compliant entropy source - provides cryptographically secure keys for TLS handshake and secure boot in connected devices. |
Applications
| Wireless Sensor Node | Portable Medical Monitor |
|---|---|
Use Scenario: Battery-powered environmental sensor collecting temperature, humidity, and CO₂ with periodic BLE transmission. IC Role / Device Role / Timing Role: Main controller executing sensor fusion, power-gated data acquisition, and LPUART-triggered wake-up from Stop 2 mode. Use Value: 30 nA Shutdown and 4 µs wakeup enable >5-year battery life with sub-second measurement intervals. | Use Scenario: Wearable ECG patch acquiring analog biopotentials, performing real-time QRS detection, and storing waveform snippets. IC Role / Device Role / Timing Role: Signal processor running FIR filtering on ADC data, driving DAC for calibration signals, and managing SDMMC storage. Use Value: Triple 12-bit ADC (5 Msps) with hardware oversampling achieves 16-bit effective resolution for clinical-grade signal fidelity. |
| Industrial Edge Gateway | Smart Home Hub |
Use Scenario: DIN-rail mounted gateway aggregating Modbus RTU, CAN bus, and analog 4–20 mA field data before forwarding via Ethernet. IC Role / Device Role / Timing Role: Protocol translator with CAN 2.0B controller, dual USARTs for RS-485, and FSMC interface for external NOR flash. Use Value: Integrated CAN and 5 USARTs eliminate external transceivers, reducing component count and EMC complexity in factory automation. | Use Scenario: Voice-controlled hub interfacing with Zigbee, Z-Wave, and Bluetooth LE peripherals while processing local voice commands. IC Role / Device Role / Timing Role: Audio front-end using dual SAI interfaces for microphone array beamforming and speaker output, plus cryptographic RNG for secure pairing. Use Value: Dual SAI with I²S/TDM support enables full-duplex multi-mic audio capture synchronized to real-time clock for far-field speech recognition. |
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 |
|---|---|---|---|
| STM32L432KCU6 | 64 KB Flash, 16 KB SRAM, no CAN, LQFP32 package - lower memory and peripheral count. | Suitable for simpler BLE beacons or single-sensor nodes without fieldbus requirements. | Select when cost and board area are critical, and CAN/audio/analog density is unnecessary. |
| STM32L552RET6 | ARM TrustZone®, 512 KB Flash, 256 KB SRAM, 110 µA/MHz Run, 40 nA Shutdown - enhanced security and higher performance. | Required for applications needing secure boot, encrypted firmware storage, or PSA Level 2 certification. | Choose when hardware root-of-trust, secure key management, or extended memory for OTA staging is mandatory. |
Compared with STM32L432KCU6, the STM32L471RGT6TR delivers 16× more Flash and CAN/audio capability for complex edge nodes; versus STM32L552RET6, it trades TrustZone security for lower cost and proven toolchain maturity in volume production.
Availability
STM32L471RGT6TR is available at Aetrix Electronics and suitable for wireless sensor nodes, portable medical monitors, industrial edge gateways, and smart home hubs requiring stable component supply across multi-year production cycles.
Supply support for STM32L471RGT6TR 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, MEMS, and automotive semiconductors since 1987.
The STM32L4 series targets ultra-low-power embedded applications demanding high analog integration, robust security primitives, and long battery life - optimized for IoT endpoints, wearables, and energy-conscious industrial controls.
FAQ
What is the maximum operating temperature range for STM32L471RGT6TR?
The STM32L471RGT6TR is rated for operation from –40 °C to +85 °C (industrial grade), with extended variants supporting up to +105 °C or +125 °C. This LQFP64 variant meets the standard industrial temperature specification, validated per JEDEC JESD22-A108.
Does STM32L471RGT6TR support hardware encryption acceleration?
No, the STM32L471RGT6TR does not include dedicated cryptographic accelerators (AES, PKA, HASH). It relies on software libraries for encryption; for hardware-accelerated crypto, consider the STM32L4+ or STM32L5 series which integrate AES-128/256, SHA-256, and public-key accelerators.
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 high timekeeping precision is not required. For calendar-grade accuracy (±2 ppm), the external 32.768 kHz crystal (LSE) must be used, as specified in Section 3.9.6 and Table 48 of DS10741 Rev 3.
Is STM32L471RGT6TR pin-compatible with other STM32L471xx variants?
No - the RGT6TR uses LQFP64 packaging, while other variants like STM32L471VGT6 use LQFP100 and STM32L471ZGT6 use LQFP144. Pin counts and layouts differ; migration requires PCB redesign. However, all share identical peripheral registers and firmware compatibility within the STM32L471xx family.
STM32L471RGT6TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 64-LQFP
- Series:
- STM32L4
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M4
- Core Size:
- 32-Bit Single-Core
- Speed:
- 80MHz
- Connectivity:
- CANbus, I2C, IrDA, LINbus, MMC/SD, QSPI, SAI, SPI, SWPMI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, DMA, PWM, WDT
- Number of I/O:
- 51
- 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 16x12b; D/A 2x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32L471RGT6TR FAQ
1.How can I place an order for STM32L471RGT6TR through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32L471RGT6TR 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 STM32L471RGT6TR reliable?
The price and inventory of STM32L471RGT6TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32L471RGT6TR is usually 5 days.
3.What payment methods are accepted for STM32L471RGT6TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32L471RGT6TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32L471RGT6TR?
STM32L471RGT6TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32L471RGT6TR 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 STM32L471RGT6TR?
For technical support, including STM32L471RGT6TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32L471RGT6TR requirements.
6.How does Aetrix verify that STM32L471RGT6TR is sourced from the original manufacturer or authorized distributors?
All STM32L471RGT6TR 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 STM32L471RGT6TR meets industry standards.
7.What is the process for return or replacement of STM32L471RGT6TR?
All STM32L471RGT6TR units undergo pre-shipment inspection (PSI). If there is an issue with STM32L471RGT6TR, 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 STM32L471RGT6TR part is unused and in its original packaging.
Return procedure for STM32L471RGT6TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STM32L471RGT6TR Tags
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