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STMicroelectronics STM32L486RGT7TR
- Part No.:
- STM32L486RGT7TR
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
STM32L486RGT7TR.pdf
- Description:
- IC MCU 32BIT 1MB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:685
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Product details
Overview
STM32L486RGT7TR from STMicroelectronics is an ultra-low-power Arm® Cortex®-M4 32-bit MCU with FPU, 1 MB flash, 128 KB SRAM, USB OTG FS, LCD controller, and hardware AES encryption. It operates at up to 80 MHz (100 DMIPS), supports external SMPS for 39 µA/MHz run efficiency, and delivers 294 ULPMark™ CP score - deployed in battery-powered medical sensors and portable industrial HMI displays.
For engineers reviewing the STM32L486RGT7TR datasheet, STM32L486RGT7TR pinout, STM32L486RGT7TR application, or STM32L486RGT7TR equivalent, key selection criteria include verified low-power mode current (420 nA Standby with RTC), LQFP64 package compatibility, LCD 8×40 segment drive capability, and dual 12-bit DAC + 3×12-bit ADC (5 Msps) performance in constrained-space designs.
Technical Context
This MCU integrates an Adaptive Real-time Accelerator (ART™) enabling zero-wait-state execution from flash at 80 MHz, alongside three independent PLLs for system, USB, and audio clock domains. Its interconnect matrix decouples bus arbitration between CPU, DMA, and peripherals - critical for deterministic real-time response in mixed-signal applications.
The device implements FlexPowerControl architecture with five distinct low-power modes: Shutdown (30 nA), Standby with RTC (420 nA), Stop 2 (1.1 µA), and two configurable Run modes (100 µA/MHz with LDO, 39 µA/MHz with external SMPS). All analog blocks - including 2× op-amps, 2× comparators, and DFSDM filters - operate from independent VDDA supply rails.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | Arm Cortex-M4 with FPU, 80 MHz max frequency, 100 DMIPS performance - enables real-time DSP filtering and sensor fusion without external co-processor. |
| 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 Run | 39 µA/MHz with external SMPS - reduces battery drain in always-on portable devices by >60% vs. LDO-only operation. |
| Analog Peripherals | 3× 12-bit ADC (5 Msps), 2× 12-bit DAC, 2× op-amps with PGA, 2× ultra-low-power comparators - enables closed-loop analog control with <1 µs response latency. |
| Connectivity | USB OTG FS, CAN 2.0B, 5× USART, 3× SPI, 3× I²C, SDMMC, SAI - supports multi-protocol fieldbus gateways and audio-enabled edge nodes. |
| Security & Timing | AES-128/256 hardware accelerator, 96-bit unique ID, RTC with HW calendar and calibration - meets IEC 62443-3-3 requirements for secure time-stamped event logging. |
| LCD Driver | 8×40 or 4×44 segment drive with integrated step-up converter - eliminates external bias supply in compact display modules. |
Pinout & Package
LQFP64 (10 × 10 mm, 0.5 mm pitch) package with 51 general-purpose I/Os - 45 of which are 5 V-tolerant, and 14 support independent VDDIO2 down to 1.08 V for interfacing with low-voltage logic.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Main power and ground | Supplies core logic (1.71–3.6 V); requires local 100 nF + 4.7 µF decoupling per VDD pair. |
| VDDA, VSSA | Analog power and ground | Independent 1.62–3.6 V rail for ADC/DAC/OPAMP - must be filtered separately to maintain SNR >70 dB. |
| PA0–PA15, PB0–PB15, etc. | GPIO with multiple AF | 51 total I/Os; most support EXTI wake-up, high-drive (20 mA), and 5 V tolerance - simplifies level-shifting in mixed-voltage systems. |
| PC13–PC15 | RTC/LSE pins | Dedicated 32.768 kHz crystal interface with built-in load caps - enables ±5 ppm RTC accuracy without external components. |
| PD0–PD15 | LCD segment/common drivers | Drives up to 320 segments directly; internal boost converter generates VLCD from VDD - eliminates external charge pump. |
Key Features
| Feature | Design Value |
|---|---|
| FlexPowerControl low-power modes | 30 nA Shutdown, 420 nA Standby with RTC, and 45 µs wakeup from Stop - extends coin-cell life to >10 years in metering applications. |
| ART Accelerator™ | Zero-wait-state execution from flash at 80 MHz - eliminates cache misses in deterministic control loops (e.g., motor commutation). |
| Hardware AES engine | 128/256-bit key encryption with DMA-triggered operation - achieves 12 Mbps throughput without CPU intervention for OTA firmware signing. |
| Capacitive touch sensing | 24-channel TSC supporting touchkey, linear, and rotary sensors - enables robust UI on plastic overlays without shielded cables. |
| DFSDM digital filters | 4× sigma-delta modulator interfaces with programmable decimation - replaces external ASICs for high-resolution current/voltage monitoring in inverters. |
Applications
| Portable Medical Sensor | Smart Energy Meter |
|---|---|
Use Scenario: Wearable ECG monitor with OLED display and Bluetooth LE connectivity. IC Role / Device Role / Timing Role: Main controller managing analog front-end (ADC + OPAMP), LCD driver, USB charging negotiation, and secure BLE stack timing. Use Value: 39 µA/MHz SMPS efficiency extends CR2032 battery life to 18 months; integrated AES ensures HIPAA-compliant data encryption at rest and in transit. | Use Scenario: DIN-rail mounted electricity meter with tamper detection and PLC communication. IC Role / Device Role / Timing Role: System-on-chip handling metrology ADC sampling, RTC-based billing intervals, CAN/PLC interface, and anti-tampering logic. Use Value: 420 nA Standby with RTC maintains accurate timekeeping during mains failure; dual 12-bit DACs calibrate shunt-based current measurement across temperature. |
| Industrial HMI Panel | Wireless Sensor Node |
Use Scenario: Fan-coil unit controller with 4×44-segment LCD, capacitive buttons, and Modbus RTU over RS-485. IC Role / Device Role / Timing Role: Primary MCU driving LCD, processing touch input, executing PID loop, and managing isolated serial communication. Use Value: Integrated LCD controller with step-up converter eliminates 6 external components; 24-channel TSC supports glove-compatible UI on polycarbonate front panel. | Use Scenario: Battery-powered vibration sensor node transmitting FFT data via LoRaWAN. IC Role / Device Role / Timing Role: Edge processor running DFSDM-filtered accelerometer data, AES-encrypted packet assembly, and LPUART wake-up from Stop 2 mode. Use Value: 1.1 µA Stop 2 mode with LPUART wake-up enables 10-year battery life; hardware DFSDM reduces CPU load by 75% vs. software oversampling. |
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, 1 MB flash, but lacks USB OTG FS and LCD controller; 128 KB SRAM identical. | No native display interface or USB device capability - unsuitable for HMI or firmware update via USB. | Select when USB/LCD are unnecessary and cost reduction is prioritized over peripheral consolidation. |
| STM32L552RET6 | ARMv8-M TrustZone security, 256 KB flash, 128 KB SRAM, same 80 MHz Cortex-M33 core; no LCD or DFSDM. | Hardware root-of-trust and secure boot required; lacks analog features needed for sensor signal conditioning. | Choose for applications requiring PSA Level 3 certification where cryptographic isolation outweighs analog integration needs. |
Compared with STM32L476RGT6, the STM32L486RGT7TR adds USB OTG and LCD - reducing BOM count in display-equipped devices; versus STM32L552RET6, it trades TrustZone for richer analog peripherals and lower active power - favoring sensor-rich edge nodes over secure cloud-connected gateways.
Availability
STM32L486RGT7TR is available at Aetrix Electronics and suitable for portable medical sensors, smart energy meters, industrial HMI panels, and wireless sensor nodes requiring stable component supply across extended product lifecycles.
Supply support for STM32L486RGT7TR 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, and MEMS sensors - serving automotive, industrial, and consumer markets since 1987.
The STM32L4 series targets ultra-low-power embedded applications demanding high analog integration, secure firmware execution, and long battery life - optimized for IoT endpoints, portable diagnostics, and energy infrastructure.
FAQ
What is the maximum operating temperature range for STM32L486RGT7TR?
The STM32L486RGT7TR is qualified for industrial operation from –40 °C to +105 °C ambient temperature. This rating is validated per JEDEC JESD47 and applies to all LQFP64 variants under specified voltage and load conditions - critical for deployment in unventilated enclosures or outdoor metering housings.
Does STM32L486RGT7TR support external memory expansion?
Yes, it integrates a Flexible Static Memory Controller (FSMC) supporting SRAM, PSRAM, NOR, and NAND memories with address/data multiplexing. The FSMC provides up to 16-bit data bus width and programmable timing - enabling direct attachment of external display frame buffers or data loggers without FPGA glue logic.
How does the Batch Acquisition Mode (BAM) reduce power consumption?
BAM disables the CPU and flash while keeping selected peripherals (ADC, timers, DMA) active - achieving sub-µA acquisition bursts. It uses autonomous peripheral triggering to capture sensor data without waking the core, reducing average current by up to 40% in periodic monitoring applications like environmental sensing.
Can the internal SMPS controller replace an external DC-DC converter?
No - the STM32L486RGT7TR supports external SMPS (not internal). It provides dedicated VDD12 and VDD12_IO pins to accept regulated 1.2 V from an external switcher, enabling the 39 µA/MHz ultra-low-power run mode. The MCU itself contains no integrated SMPS controller or power FETs.
STM32L486RGT7TR 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 ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32L486RGT7TR FAQ
1.How can I place an order for STM32L486RGT7TR through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32L486RGT7TR 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 STM32L486RGT7TR reliable?
The price and inventory of STM32L486RGT7TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32L486RGT7TR is usually 5 days.
3.What payment methods are accepted for STM32L486RGT7TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32L486RGT7TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32L486RGT7TR?
STM32L486RGT7TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32L486RGT7TR 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 STM32L486RGT7TR?
For technical support, including STM32L486RGT7TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32L486RGT7TR requirements.
6.How does Aetrix verify that STM32L486RGT7TR is sourced from the original manufacturer or authorized distributors?
All STM32L486RGT7TR 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 STM32L486RGT7TR meets industry standards.
7.What is the process for return or replacement of STM32L486RGT7TR?
All STM32L486RGT7TR units undergo pre-shipment inspection (PSI). If there is an issue with STM32L486RGT7TR, 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 STM32L486RGT7TR part is unused and in its original packaging.
Return procedure for STM32L486RGT7TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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