STM32L486QG

Active
Education

Ultra-low-power with FPU Arm Cortex-M4 MCU 80 MHz with 1 Mbyte of Flash memory, LCD, USB OTG, AES-256, DFSDM

Download datasheet Order Direct
Overview
Online design
Sample & Buy
Solutions
Documentation
CAD Resources
Tools & Software
Quality & Reliability
Partner products
Sales Briefcase

Product overview

Description

The STM32L486xx devices are the ultra-low-power microcontrollers based on the high-performance Arm® Cortex®-M4 32-bit RISC core operating at a frequency of up to 80 MHz. The Cortex-M4 core features a Floating point unit (FPU) single precision which supports all Arm® single-precision data-processing instructions and data types. It also implements a full set of DSP instructions and a memory protection unit (MPU) which enhances application security. The STM32L486xx devices embed high-speed memories (1 Mbyte of Flash memory, 128 Kbyte of SRAM), a flexible external memory controller (FSMC) for static memories (for devices with packages of 100 pins and more), a Quad SPI flash memories interface (available on all packages) and an extensive range of enhanced I/Os and peripherals connected to two APB buses, two AHB buses and a 32-bit multi-AHB bus matrix.
The devices offer up to three fast 12-bit ADCs (5 Msps), two comparators, two operational amplifiers, two DAC channels, an internal voltage reference buffer, a low-power RTC, two general-purpose 32-bit timer, two 16-bit PWM timers dedicated to motor control, seven general-purpose 16-bit timers, and two 16-bit low-power timers. The devices support four digital filters for external sigma delta modulators (DFSDM).
In addition, up to 24 capacitive sensing channels are available. The devices also embed an integrated LCD driver 8x40 or 4x44, with internal step-up converter.
They also feature standard and advanced communication interfaces.
The STM32L486xx devices embed AES hardware accelerator.
The STM32L486xx operates in the -40 to +85 °C (+105 °C junction), -40 to +105 °C (+125 °C junction) and -40 to +125 °C (+130 °C junction) temperature ranges from a 1.71 to 3.6 V VDD power supply when using internal LDO regulator and a 1.05 to 1.32V VDD12 power supply when using external SMPS supply. A comprehensive set of power-saving modes allows the design of low-power applications.
Some independent power supplies are supported: analog independent supply input for ADC, DAC, OPAMPs and comparators, 3.3 V dedicated supply input for USB and up to 14 I/Os can be supplied independently down to 1.08V. A VBAT input allows to backup the RTC and backup registers. Dedicated VDD12 power supplies can be used to bypass the internal LDO regulator when connected to an external SMPS.
The STM32L486xx family offers five packages from 64-pin to 144-pin packages.
  • All features

    • Ultra-low-power with FlexPowerControl
      • 1.71 V to 3.6 V power supply
      • -40 °C to 85/105/125 °C temperature range
      • 300 nA in VBAT mode: supply for RTC and 32x32-bit backup registers
      • 30 nA Shutdown mode (5 wakeup pins)
      • 120 nA Standby mode (5 wakeup pins)
      • 420 nA Standby mode with RTC
      • 1.1 μA Stop 2 mode, 1.4 μA with RTC
      • 100 μA/MHz run mode (LDO Mode)
      • 39 μA/MHz run mode (@3.3 V SMPS Mode)
      • Batch acquisition mode (BAM)
      • 4 μs wakeup from Stop mode
      • Brown out reset (BOR)
      • Interconnect matrix
    • Core: Arm® 32-bit Cortex®-M4 CPU with FPU, Adaptive real-time accelerator (ART Accelerator™) allowing 0-wait-state execution from Flash memory, frequency up to 80 MHz, MPU, 100DMIPS and DSP instructions
    • Performance benchmark
      • 1.25 DMIPS/MHz (Drystone 2.1)
      • 273.55 CoreMark® (3.42 CoreMark/MHz @ 80 MHz)
    • Energy benchmark
      • 294 ULPMark™ CP score
      • 106 ULPMark™ PP score
    • Clock Sources
      • 4 to 48 MHz crystal oscillator
      • 32 kHz crystal oscillator for RTC (LSE)
      • Internal 16 MHz factory-trimmed RC (±1%)
      • Internal low-power 32 kHz RC (±5%)
      • Internal multispeed 100 kHz to 48 MHz oscillator, auto-trimmed by LSE (better than ±0.25 % accuracy)
      • 3 PLLs for system clock, USB, audio, ADC
    • Up to 114 fast I/Os, most 5 V-tolerant, up to 14 I/Os with independent supply down to 1.08 V
    • RTC with HW calendar, alarms and calibration
    • LCD 8× 40 or 4× 44 with step-up converter
    • Up to 24 capacitive sensing channels: support touchkey, linear and rotary touch sensors
    • 16x timers: 2x 16-bit advanced motor-control, 2x 32-bit and 5x 16-bit general purpose, 2x 16-bit basic, 2x low-power 16-bit timers (available in Stop mode), 2x watchdogs, SysTick timer
    • Memories
      • 1 MB Flash, 2 banks read-while-write, proprietary code readout protection
      • 128 KB of SRAM including 32 KB with hardware parity check
      • External memory interface for static memories supporting SRAM, PSRAM, NOR and NAND memories
      • Quad SPI memory interface
    • 4x digital filters for sigma delta modulator
    • Rich analog peripherals (independent supply)
      • 3x 12-bit ADC 5 Msps, up to 16-bit with hardware oversampling, 200 μA/Msps
      • 2x 12-bit DAC output channels, low-power sample and hold
      • 2x operational amplifiers with built-in PGA
      • 2x ultra-low-power comparators
    • AES: 128/256-bit key encryption hardware accelerator
    • 20x communication interfaces
      • USB OTG 2.0 full-speed, LPM and BCD
      • 2x SAIs (serial audio interface)
      • 3x I2C FM+(1 Mbit/s), SMBus/PMBus
      • 5x USARTs (ISO 7816, LIN, IrDA, modem)
      • 1x LPUART (Stop 2 wake-up)
      • 3x SPIs (and 1x Quad SPI)
      • CAN (2.0B Active) and SDMMC interface
      • SWPMI single wire protocol master I/F
      • IRTIM (Infrared interface)
    • 14-channel DMA controller
    • True random number generator
    • CRC calculation unit, 96-bit unique ID
    • Development support: serial wire debug (SWD), JTAG, Embedded Trace Macrocell™
    • All packages are ECOPACK2® compliant

Circuit Diagram

All tools & software

    • Part number
      Status
      Description
      Type
      Supplier

      AWS IoT Core

      Active

      AWS IoT Core is a managed cloud service that lets connected devices easily and securely interact with cloud applications and other devices

      Cloud AWS
      AWS IoT Core

      Description:

      AWS IoT Core is a managed cloud service that lets connected devices easily and securely interact with cloud applications and other devices

      AZURE Cloud

      Active

      Microsoft Azure is an ever-expanding set of cloud services to help your organization meet your business challenges. It's the freedom to build, manage, and deploy applications on a massive, global network using your favorite tools and frameworks.

      Cloud Microsoft
      AZURE Cloud

      Description:

      Microsoft Azure is an ever-expanding set of cloud services to help your organization meet your business challenges. It's the freedom to build, manage, and deploy applications on a massive, global network using your favorite tools and frameworks.

      Enhanced Carrier Connectivity Services

      Active

      Optimized regional cellular connectivity with one point of accountability & invoice for multiple Tier-1 carrier services

      Cloud Sierra Wireless
      Enhanced Carrier Connectivity Services

      Description:

      Optimized regional cellular connectivity with one point of accountability & invoice for multiple Tier-1 carrier services

      Global Smart Connectivity Services

      Active

      Smart Connectivity simplifies IoT deployments, eliminates coverage gaps with access to multiple networks, while reducing the total cost of opportunity

      Cloud Sierra Wireless
      Global Smart Connectivity Services

      Description:

      Smart Connectivity simplifies IoT deployments, eliminates coverage gaps with access to multiple networks, while reducing the total cost of opportunity

      Octave Services

      Active

      Octave all-in-one platform for connecting IoT assets and microcontrollers to the cloud

      Cloud Sierra Wireless
      Octave Services

      Description:

      Octave all-in-one platform for connecting IoT assets and microcontrollers to the cloud

      Watson IoT Platform

      Active

      IBM Watson IoT Platform is a managed, cloud-hosted service designed to make it simple to derive value from your Internet of Things devices.

      Cloud IBM
      Watson IoT Platform

      Description:

      IBM Watson IoT Platform is a managed, cloud-hosted service designed to make it simple to derive value from your Internet of Things devices.
    • Part number
      Status
      Description
      Type
      Supplier

      Enhanced Carrier Connectivity SIM

      Active

      Cellular connectivity that simplifies, optimizes regional deployments via 1 point of accountability and invoice for multiple Tier-1 carrier services

      Components and Modules Sierra Wireless
      Enhanced Carrier Connectivity SIM

      Description:

      Cellular connectivity that simplifies, optimizes regional deployments via 1 point of accountability and invoice for multiple Tier-1 carrier services

      Global Smart Connectivity SIM

      Active

      Sierra Wireless' Smart Connectivity provides resilient Global cellular coverage in a single SIM

      Components and Modules Sierra Wireless
      Global Smart Connectivity SIM

      Description:

      Sierra Wireless' Smart Connectivity provides resilient Global cellular coverage in a single SIM