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STMicroelectronics STM32L486RGT6
- Part No.:
- STM32L486RGT6
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
STM32L486RGT6.pdf
- Description:
- IC MCU 32BIT 1MB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:843
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Product details
Overview
STM32L486RGT6 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, 128 KB SRAM, USB OTG FS, LCD controller, external SMPS support, and hardware AES encryption. It targets battery-powered industrial sensors, portable medical devices, and smart metering systems requiring long runtime and secure firmware execution.
For engineers reviewing the STM32L486RGT6 datasheet, STM32L486RGT6 pinout, STM32L486RGT6 application, or STM32L486RGT6 equivalent, key selection criteria include its 39 µA/MHz SMPS-enabled run mode, dual 12-bit DACs with sample-and-hold, 3× 12-bit ADCs (5 Msps), 2× operational amplifiers with PGA, and 114 I/Os with 5 V tolerance - all in a 64-pin LQFP package rated for -40 °C to 105 °C operation.
Technical Context
The device integrates an Adaptive Real-time Accelerator (ART Accelerator™) enabling zero-wait-state execution from flash memory, coupled with a Memory Protection Unit (MPU) and dual-bank flash supporting read-while-write for robust firmware updates. Its FlexPowerControl architecture delivers sub-µA low-power modes including 30 nA Shutdown and 420 nA Standby with RTC.
Clock system includes three PLLs (system, USB, audio), internal multispeed oscillator auto-trimmed by LSE (<±0.25% accuracy), and dedicated low-power timers (LPTIM1/LPTIM2) functional in Stop mode. Analog subsystem features independent supply domains, hardware oversampling up to 16-bit resolution, and sigma-delta digital filters (DFSDM).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | Arm Cortex-M4 with FPU, 80 MHz max frequency, 100 DMIPS, ART Accelerator for 0-wait-state flash execution |
| Memory | 1 MB dual-bank flash (read-while-write, ROP), 128 KB SRAM (32 KB with parity) |
| Power Consumption | 39 µA/MHz in SMPS-run mode @3.3 V; 30 nA in Shutdown mode with 5 wakeup pins |
| Analog Peripherals | 3× 12-bit ADCs (5 Msps, 16-bit w/oversampling), 2× 12-bit DACs, 2× op-amps w/PGA, 2× comparators |
| Connectivity | USB OTG FS (LPM/BCD), CAN 2.0B, 5× USART, 3× SPI, 3× I²C FM+, 2× SAI, SDMMC, SWPMI, IRTIM |
| Package & Temp | LQFP64 (10 × 10 mm), -40 °C to 105 °C operating range, ECOPACK2 compliant |
| Security | Hardware AES-128/256 accelerator, CRC unit, 96-bit unique ID, firewall, ROP level 2 protection |
Pinout & Package
LQFP64 (10 × 10 mm, 0.5 mm pitch) package with exposed thermal pad; RoHS-compliant, ECOPACK2 certified.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Main power supply and ground | Supports 1.71–3.6 V operation; decoupling required per datasheet layout guidelines |
| VDDA, VSSA | Analog domain supply and ground | Independent analog rail for precision ADC/DAC/OPAMP operation; must be filtered and isolated |
| PA0–PA15, PB0–PB15, PC0–PC15, PD0–PD15, PE0–PE7 | General-purpose I/Os | Up to 114 GPIOs; most 5 V-tolerant; up to 14 configurable for independent 1.08–3.6 V supply |
| OSC_IN/OSC_OUT | External crystal oscillator input/output | Supports 4–48 MHz crystals; critical for precise clock generation and USB timing compliance |
| NRST | Active-low reset input | Asynchronous reset with Schmitt trigger; supports external pull-up and debouncing |
| BOOT0 | Boot mode selection | Configures boot source (system memory, flash, or SRAM); sampled at reset assertion |
| VBAT | Battery backup supply | Supplies RTC and 32×32-bit backup registers during main power loss; accepts 1.65–3.6 V |
| USB_DP/USB_DM | USB 2.0 full-speed differential pair | Integrated transceiver; requires 1.5 kΩ pull-up on DP for device enumeration |
Key Features
| Feature | Design Value |
|---|---|
| FlexPowerControl architecture | Enables 30 nA Shutdown and 420 nA Standby with RTC - extends battery life in intermittent-sensing applications |
| ART Accelerator™ | Eliminates flash wait states at 80 MHz, reducing dynamic power and improving deterministic real-time response |
| Dual-bank flash with ROP | Allows seamless firmware updates via bank swapping while maintaining secure code readout protection (Level 2) |
| Independent analog supply domains | Isolates noise-sensitive ADC/DAC/OPAMP circuits from digital switching, enabling <1 LSB INL error in 12-bit conversions |
| Hardware AES engine | Accelerates encryption/decryption of firmware images and sensor data without CPU overhead or timing side-channel leakage |
Applications
| Smart Utility Metering | Portable Medical Monitoring |
|---|---|
Use Scenario: Battery-operated electricity/water/gas meters performing hourly energy logging, tamper detection, and RF communication. IC Role / Device Role / Timing Role: Primary application MCU managing metrology ADC sampling, LCD display, secure firmware updates, and low-power wireless stack execution. Use Value: 39 µA/MHz SMPS-run mode and 45 µs Stop-mode wakeup enable rapid sensor polling and transmission bursts while sustaining >10-year battery life. | Use Scenario: Wearable ECG/SpO₂ monitors requiring clinical-grade analog signal acquisition and Bluetooth LE telemetry. IC Role / Device Role / Timing Role: Signal processing hub integrating 3× simultaneous ADC channels, 2× OPAMPs for front-end gain/anti-aliasing, and hardware AES for HIPAA-compliant data encryption. Use Value: Independent VDDA/VSSA rails and 16-bit oversampled ADC resolution ensure <1 µV RMS noise floor for sub-mV biopotential signals. |
| Industrial Wireless Sensor Node | Human-Machine Interface (HMI) Terminal |
Use Scenario: IP67-rated environmental sensor node measuring temperature, humidity, and CO₂ in HVAC ducts with LoRaWAN backhaul. IC Role / Device Role / Timing Role: Central controller handling capacitive touch sensing (TSC), multi-sensor fusion, secure OTA updates, and low-duty-cycle radio scheduling. Use Value: 24-channel TSC with hardware charge-transfer measurement eliminates external touch ICs, reducing BOM cost and PCB area. | Use Scenario: Factory-floor HMI panel with segmented LCD display, tactile buttons, and real-time process control feedback. IC Role / Device Role / Timing Role: Display and interface manager driving 8×40-segment LCD with integrated step-up converter, decoding touch inputs, and executing deterministic control loops. Use Value: Integrated LCD controller with boost circuit removes need for external DC-DC converter, simplifying power design and lowering EMI emissions. |
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 |
|---|---|---|---|
| STM32L476RGT6 | Same LQFP64 package, identical core/peripherals but lacks USB OTG FS and LCD controller; 512 KB flash, 96 KB SRAM | Suitable for non-display, non-USB embedded control where LCD/USB are unnecessary | Select when display or USB host/device functionality is not required - reduces cost and flash overhead |
| STM32L552RET6 | ARM Cortex-M33 with TrustZone, 512 KB flash, 256 KB SRAM, same LQFP64; adds secure boot, cryptographic accelerators, and enhanced tamper resistance | Required for applications needing PSA Level 1 certification, secure key storage, or confidential computing | Choose for next-generation designs demanding hardware-enforced security isolation beyond AES acceleration |
Compared with STM32L476RGT6, the STM32L486RGT6 adds USB OTG FS and LCD support at higher memory density - ideal for connected displays; versus STM32L552RET6, it trades TrustZone security for lower cost and proven low-power maturity in volume deployments.
Availability
STM32L486RGT6 is available at Aetrix Electronics and suitable for smart utility metering, portable medical monitoring, and industrial wireless sensor nodes requiring stable component supply across extended product lifecycles.
Supply support for STM32L486RGT6 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.
The STM32L4 series targets ultra-low-power embedded applications demanding high performance-per-milliwatt, extended battery life, and rich peripheral integration - especially in metering, wearables, and IoT edge nodes.
FAQ
What is the maximum operating temperature range for STM32L486RGT6?
The STM32L486RGT6 is qualified for industrial operation from -40 °C to +105 °C ambient temperature, as specified in Section 6.3.1 of DS10199 Rev 8. This rating applies to the LQFP64 package variant and ensures reliable operation in harsh environments such as smart meters and factory automation equipment.
Does STM32L486RGT6 support external memory interfaces?
Yes - it integrates a Flexible Static Memory Controller (FSMC) supporting SRAM, PSRAM, NOR, and NAND memories, plus a Quad SPI interface for high-speed serial flash. These interfaces enable expansion beyond on-chip memory for data logging, GUI assets, or firmware staging in resource-constrained designs.
How does the Batch Acquisition Mode (BAM) reduce power in sensor applications?
BAM allows the CPU to remain in low-power mode while peripherals (ADC, DFSDM, timers) autonomously acquire and pre-process sensor data. Upon completion, only a lightweight interrupt wakes the core - cutting active CPU time by up to 70% in periodic sensing tasks like environmental monitoring.
Can the internal SMPS be used with STM32L486RGT6?
No - the STM32L486RGT6 supports external SMPS (e.g., ST's STLQ015) via dedicated VDD12 and VDD12_IO pins, enabling 39 µA/MHz efficiency. It does not integrate an on-die SMPS regulator; external DC-DC control requires proper sequencing and voltage monitoring per Section 3.9.3 of the datasheet.
STM32L486RGT6 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 64-LQFP
- 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, 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:
- 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:
STM32L486RGT6 FAQ
1.How can I place an order for STM32L486RGT6 through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32L486RGT6 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 STM32L486RGT6 reliable?
The price and inventory of STM32L486RGT6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32L486RGT6 is usually 5 days.
3.What payment methods are accepted for STM32L486RGT6?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32L486RGT6 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32L486RGT6?
STM32L486RGT6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32L486RGT6 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 STM32L486RGT6?
For technical support, including STM32L486RGT6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32L486RGT6 requirements.
6.How does Aetrix verify that STM32L486RGT6 is sourced from the original manufacturer or authorized distributors?
All STM32L486RGT6 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 STM32L486RGT6 meets industry standards.
7.What is the process for return or replacement of STM32L486RGT6?
All STM32L486RGT6 units undergo pre-shipment inspection (PSI). If there is an issue with STM32L486RGT6, 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 STM32L486RGT6 part is unused and in its original packaging.
Return procedure for STM32L486RGT6:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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