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STMicroelectronics STM32L486RGT6TR
- Part No.:
- STM32L486RGT6TR
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
STM32L486RGT6TR.pdf
- Description:
- IC MCU 32BIT 1MB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,594
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Product details
Overview
STM32L486RGT6TR 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, and hardware AES encryption. It operates from 1.71–3.6 V across –40 °C to 105 °C and supports external SMPS for 39 µA/MHz run-mode efficiency - deployed in battery-powered medical sensors and portable industrial HMI.
For engineers reviewing the STM32L486RGT6TR datasheet, STM32L486RGT6TR pinout, STM32L486RGT6TR application, or STM32L486RGT6TR equivalent, key selection criteria include verified low-power mode current (30 nA Shutdown), dual-supply I/O flexibility (down to 1.08 V), LCD 8×40 segment drive capability, and CAN 2.0B + SDMMC interface integration for edge-node connectivity.
Technical Context
The device integrates an Adaptive Real-time Accelerator (ART™) enabling zero-wait-state execution from flash at 80 MHz, alongside a memory protection unit (MPU) and interconnect matrix for deterministic peripheral arbitration. Its power architecture includes three independent voltage domains (VDD, VDDA, VDDIO2) supporting mixed-signal isolation and dynamic voltage scaling.
Core peripherals include two 12-bit DACs with sample-and-hold, three 12-bit ADCs (5 Msps, hardware oversampling up to 16-bit), two operational amplifiers with programmable gain, and two ultra-low-power comparators - all with independent analog supply routing for noise resilience in precision sensing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M4 with FPU and DSP instructions, 80 MHz max frequency - enables real-time signal processing in portable diagnostics. |
| 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 mode (5 wakeup pins), 420 nA Standby with RTC - extends coin-cell battery life beyond 10 years in maintenance-free IoT nodes. |
| Analog Peripherals | 3× 12-bit ADC (5 Msps), 2× 12-bit DAC, 2× OPAMP, 2× comparator - enables simultaneous sensor signal conditioning and actuator control without external components. |
| Connectivity | USB OTG FS, CAN 2.0B, SDMMC, 5× USART, 3× SPI, 3× I²C, 2× SAI - supports wired fieldbus integration, audio feedback, and removable storage in portable equipment. |
| Display & Timing | LCD controller (8×40 / 4×44 segments with step-up converter), RTC with HW calendar and calibration - drives segmented displays directly and maintains accurate timekeeping during deep sleep. |
| Security | AES-128/256 hardware accelerator, 96-bit unique ID, CRC unit, firewall - accelerates encrypted data transmission and prevents cloning in certified medical devices. |
Pinout & Package
LQFP64 package (10 × 10 mm, 0.5 mm pitch), RoHS-compliant ECOPACK2, with 51 general-purpose I/Os (most 5 V-tolerant) and dedicated pins for LCD segment/common, USB D+/D−, CAN TX/RX, and external SMPS control.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Main digital power and ground | Supplies core logic; requires local 100 nF + 4.7 µF decoupling per VDD pin for stable 80 MHz operation. |
| VDDA, VSSA | Analog power and ground | Isolated analog domain for ADC/DAC/OPAMP; must be filtered separately to maintain <12-bit linearity. |
| VREF+ | Analog reference input | Accepts external 1.2–3.6 V reference or internal VREFINT (1.21 V); sets full-scale range for all analog peripherals. |
| PA0–PA15, PB0–PB15, etc. | General-purpose I/Os | 51 GPIOs support multiple alternate functions (AF0–AF15); up to 14 pins configurable for 1.08–3.6 V I/O supply (VDDIO2). |
| PC13–PC15 | RTC oscillator inputs | Connect 32.768 kHz crystal; PC14/PC15 are dedicated LSE pins with built-in load capacitors (12 pF). |
| PA11/PA12 | USB OTG FS D+/D− | Differential USB 2.0 full-speed interface; requires 1.5 kΩ pull-up on PA12 for device enumeration. |
| PB8/PB9 | CAN TX/RX | Direct connection to external CAN transceiver; supports bit rates up to 1 Mbps with programmable timing quanta. |
| PD0/PD1 | SDMMC CLK/CMD | Drive SD card clock (up to 48 MHz) and command line; PD2–PD12 used for 4-/8-bit data bus with CRC validation. |
Key Features
| Feature | Design Value |
|---|---|
| FlexPowerControl architecture | Seven low-power modes (Shutdown, Stop2, Standby with RTC) with sub-µA retention - enables energy harvesting designs with intermittent wake-up. |
| Batch Acquisition Mode (BAM) | Permits autonomous ADC/DAC/DFSDM operation while CPU sleeps - reduces system-level power by >40% in sensor fusion applications. |
| External SMPS interface | Dedicated VDD12 pin and control signals (SMPS_EN, SMPS_VSEL) - achieves 39 µA/MHz efficiency vs. 100 µA/MHz in LDO mode. |
| Capacitive touch sensing | 24-channel TSC supporting touchkey, linear, and rotary sensors - eliminates mechanical buttons in medical handhelds with <50 mV noise immunity. |
| True random number generator | NIST SP800-90B compliant entropy source - satisfies IEC 62304 Class C software requirements for cryptographic key generation. |
Applications
| Portable Medical Monitor | Smart Energy Meter |
|---|---|
Use Scenario: Wearable ECG patch with real-time waveform display and Bluetooth LE telemetry. IC Role / Device Role / Timing Role: Main controller managing analog front-end sampling (ADC), LCD segment driving, USB charging negotiation, and AES-encrypted data upload. Use Value: 30 nA Shutdown mode preserves battery charge during patient transport; LCD controller eliminates external display driver IC. | Use Scenario: DIN-rail mounted electricity meter with tamper detection, tariff switching, and PLC communication. IC Role / Device Role / Timing Role: System-on-chip handling metrology calculations (via DFSDM + ADC), RTC-based billing intervals, and CAN-based grid node coordination. Use Value: Dual-supply I/O (VDDIO2) interfaces directly with 3.3 V PLC transceivers; AES engine secures firmware updates over HAN. |
| Industrial HMI Terminal | Wireless Sensor Node |
Use Scenario: Panel-mounted operator interface with resistive touchscreen, status LEDs, and Modbus RTU gateway. IC Role / Device Role / Timing Role: Central MCU executing GUI rendering (via LCD controller), touch sensing (TSC), serial protocol translation, and watchdog-managed fail-safe states. Use Value: 128 KB SRAM buffers full GUI assets; 45 µs wakeup from Stop mode ensures <100 ms UI response after button press. | Use Scenario: Battery-powered vibration sensor node with FFT analysis, LoRaWAN uplink, and predictive maintenance alerts. IC Role / Device Role / Timing Role: Edge processor acquiring accelerometer data via DFSDM, running lightweight ML inference, and scheduling low-duty-cycle radio bursts. Use Value: ART Accelerator enables 80 MHz deterministic FFT execution from flash; 1.1 µA Stop2 mode extends 2 AA battery life to 5+ years. |
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, but 512 KB flash, no USB OTG FS, no LCD controller, no external SMPS interface. | Suitable for cost-sensitive sensor nodes without display or USB host capability. | Select when display, USB device/host, or SMPS-driven efficiency below 40 µA/MHz is not required. |
| STM32U575ZIT6 | Arm Cortex-M33 core, TrustZone, 2 MB flash, 782 KB SRAM, 1.4 µA Stop mode, but no LCD controller and different pinout. | Better for secure boot and PSA-certified endpoints; lacks integrated display driver for segment LCDs. | Choose for next-gen security-critical designs where TrustZone and higher memory are prioritized over LCD integration. |
Compared with STM32L476RGT6, the STM32L486RGT6TR adds USB OTG, LCD, and SMPS support - critical for portable HMI. Versus STM32U575ZIT6, it trades TrustZone for proven LCD and ultra-low-power analog integration - making it optimal for battery-powered instrumentation with visual feedback.
Availability
STM32L486RGT6TR is available at Aetrix Electronics and suitable for portable medical monitors, smart energy meters, industrial HMI terminals, and wireless sensor nodes requiring stable component supply across long-lifecycle deployments.
Supply support for STM32L486RGT6TR 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, designing and manufacturing microcontrollers, power ICs, sensors, and automotive-grade components since 1987.
The STM32L4 series targets ultra-low-power embedded applications demanding high performance-per-milliwatt, with emphasis on battery longevity, analog integration, and functional safety compliance for medical and industrial use.
FAQ
What is the maximum operating temperature rating for STM32L486RGT6TR?
The STM32L486RGT6TR is qualified for industrial operation up to +105 °C ambient temperature, as confirmed in Section 6.3.1 of DS10199 Rev 8. This rating applies under specified voltage and load conditions, with thermal derating required above 85 °C for sustained 80 MHz operation per Table 22 (thermal characteristics).
Does STM32L486RGT6TR support external quad-SPI flash memory?
Yes - the device integrates a dedicated QUADSPI interface (QSPI_CLK, QSPI_CS, QSPI_IO0–QSPI_IO3) supporting octal and quad SPI protocols at up to 80 MHz. It enables XIP (execute-in-place) operation and hardware address translation for seamless expansion of code or asset storage beyond internal flash.
Can the LCD controller drive graphic displays or only segment types?
The LCD controller supports only static and multiplexed segment-type displays (8×40 or 4×44), not pixel-addressable graphic LCDs. It includes integrated step-up converter and bias generation, eliminating external charge pumps - ideal for low-cost alphanumeric or icon-based user interfaces in portable equipment.
Is the AES hardware accelerator accessible via DMA for zero-CPU-overhead encryption?
Yes - the AES peripheral supports DMA-triggered operation for both encryption and decryption. When paired with the 14-channel DMA controller, it enables background ciphering of large data blocks (e.g., firmware images or sensor logs) without CPU intervention, preserving real-time responsiveness in concurrent tasks.
STM32L486RGT6TR 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, 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:
STM32L486RGT6TR FAQ
1.How can I place an order for STM32L486RGT6TR through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32L486RGT6TR 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 STM32L486RGT6TR reliable?
The price and inventory of STM32L486RGT6TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32L486RGT6TR is usually 5 days.
3.What payment methods are accepted for STM32L486RGT6TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32L486RGT6TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32L486RGT6TR?
STM32L486RGT6TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32L486RGT6TR 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 STM32L486RGT6TR?
For technical support, including STM32L486RGT6TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32L486RGT6TR requirements.
6.How does Aetrix verify that STM32L486RGT6TR is sourced from the original manufacturer or authorized distributors?
All STM32L486RGT6TR 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 STM32L486RGT6TR meets industry standards.
7.What is the process for return or replacement of STM32L486RGT6TR?
All STM32L486RGT6TR units undergo pre-shipment inspection (PSI). If there is an issue with STM32L486RGT6TR, 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 STM32L486RGT6TR part is unused and in its original packaging.
Return procedure for STM32L486RGT6TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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