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//
Microcontrollers // 32-bit Microcontrollers

32-bit Microcontrollers

Our energy-friendly EFM32 microcontrollers (MCUs) are ideal for ultra-low power applications. Based on ARM® Cortex® -M0+, Cortex-M3, Cortex-M4 and Cortex-M33 cores our 32-bit MCUs extend battery life for those "hard-to-reach", power-sensitive consumer and industrial applications. Engineered for low power and intelligent design, our MCUs have the ability to scale power consumption while still performing real-time embedded tasks.

  1. Hardware
  2. Kits and Boards
  3. Software and Tools
  4. Learn about 32-bit MCU
  1. Hardware
32-bit MCUs Select Columns
Select Columns
Core Frequency (MHz) Max Flash/RAM (kB) Max GPIO Max LCD Segments USB DAC ADC Resolution Max ADC Channels Max Temperature Vdd Min (V) Vdd Max (V)
FEATURED
EFM32PG23 Series 2
EFM32PG23 Series 2
ARM Cortex-M33 80 512/64 34 4 x 20 16, 20 16 125 1.71 3.8
EFM32PG22 Series 2
EFM32PG22 Series 2 MCUs
ARM Cortex-M33 76 512/32 26 — 16 16 125 1.71 3.8
Giant Gecko S1
EFM32GG S1 GG11 and GG12 32-bit Microcontrollers
ARM Cortex-M4 72 1024/192, 2048/512 144, 95 8 x 36 12 16 125 1.8 3.8
Giant Gecko
EFM32 Giant Gecko 32-bit Microcontrollers
ARM Cortex-M3 48 1024/128 93 8 x 36 12 8 85 1.98 3.8
Wonder Gecko
EFM32 Wonder Gecko 32-bit Microcontrollers
ARM Cortex-M4 48 256/32 93 8 x 36 12 8 85 1.98 3.8
Leopard Gecko
EFM32 Leopard Gecko 32-bit Microcontrollers
ARM Cortex-M3 48 256/32 93 8 x 36 12 8 85 1.98 3.8
Pearl Gecko
EFM32 Pearl Gecko 32-bit Microcontrollers
ARM Cortex-M4 40 1024/256, 256/32 32, 65 — 12 32, 54 125, 85 1.8, 1.85 3.8
Jade Gecko
EFM32 Jade Gecko 32-bit Microcontrollers
ARM Cortex-M3 40 1024/256, 256/32 32, 65 — 12 16, 32 125, 85 1.8, 1.85 3.8
Tiny Gecko S1
EFM32 Tiny Gecko 32-bit S1 Microcontrollers
ARM Cortex-M0+ 48 128/32 63 8 x 32 12 32 125 1.8 3.8
Gecko
EFM32 Gecko 32-bit Microcontrollers
ARM Cortex-M3 32 128/16 90 4 x 40 12 8 85 1.98 3.8
Tiny Gecko
EFM32 Tiny Gecko 32-bit Microcontrollers
ARM Cortex-M3 32 32/4 56 8 x 20 12 8 85 1.98 3.8
Happy Gecko
EFM32 Happy Gecko USB-enabled 32-bit Microcontrollers
ARM Cortex-M0+ 25 64/8 35 — 12 4 105 1.98 3.8
Zero Gecko
EFM32 Zero Gecko 32-bit Microcontrollers
ARM Cortex-M0+ 24 32/4 37 — 12 4 85 1.98 3.8
SiM3C1xx
SiM3C1xx 32-bit Microcontrollers
ARM Cortex-M3 80 256/32 65 — 12 16 85 1.8 5.5
SiM3L1xx
SiM3L1xx Low Power MCUs
ARM Cortex-M3 50 256/32 62 4 x 40 12 24 85 1.8 3.8
SiM3U1xx
SiM3U1xx USB MCUs
ARM Cortex-M3 80 256/32 65 — 12 16 85 1.8 5.5
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      1. Kits and Boards
      32-bit MCU Kits & Boards
      Expand / Collapse All
      Starter Kits
      Modular kits for software development and feature evaluation of IoT devices
      Development Kits
      Full-featured application development kits
      Evaluation Kits
      Product and feature evaluation kits
      Demo Kits
      Use case and feature-specific demos
      Reference Designs
      Application-specfic designs showcasing complete system solutions
      Radio Boards
      Wireless starter kit plug-in boards featuring specific SoC or module wireless devices
      Expansion Boards
      Starter kit and ecosystem accessory boards
      Thunderboard Kits
      Low-cost software development and prototyping kits for IoT devices
      Debug and Programming Tools
      Debugging and programming tools and accessories
      Featured 32-Bit Development Kit

      EFM32PG23 Pro Kit

      The PG23 Pro Kit is an ideal starting point for application development on the EFM32PG23 Microcontrollers. The board features sensors and peripherals, demonstrating some of the many capabilities of the EFM32PG23 MCU. Additionally, the board is a fully featured debugger and energy monitoring tool that can be used with external applications.

      EFM32PG23 Pro Kit

      The PG23 Pro Kit is an ideal starting point for application development on the EFM32PG23 Microcontrollers. The board features sensors and peripherals, demonstrating some of the many capabilities of the EFM32PG23 MCU. Additionally, the board is a fully featured debugger and energy monitoring tool that can be used with external applications.
      MSRP $79.99
      Add to Cart
      Learn More
      1. Software and Tools

      32-bit Software Development

      Simplicity Studio is the core development environment designed to support the Silicon Labs IoT portfolio of SoCs and modules. It provides access to target device-specific web and SDK resources in the Launcher; software and hardware configuration tools; an integrated development environment (IDE) featuring industry-standard code editors, compilers and debuggers; and advanced, value-add tools for network analysis and code-correlated energy profiling.

      Simplicity Studio   Simplicity Studio is designed to make the development process easier, faster, and more efficient by providing designers with everything they need to complete their projects from initial concept to final product. The Simplicity Studio platform provides unified development support for 32-bit MCUs, including sample apps.
      32-bit Microcontroller SDK   This software package provides all of the drivers and services needed for a successful 32-bit MCU project.
      Precision32 32-bit Microcontroller Development Suite   Silicon Labs offers advanced software development tools, available at no charge to developers. These tools unlock the power and flexibility of the Precision32™ 32-bit microcontroller family.



      Resources
      • Technical Documentation
      • Training
      • API Documentation
      1. Learn about 32-bit MCU

      What is a 32-bit MCU?

      Silicon Labs' EFM32™ 32-bit microcontroller (MCU) family is the world's most energy friendly microcontroller and is especially suited for use in low-power and energy sensitive applications, including energy, water, and gas metering, building automation, alarm and security, and portable medical/fitness equipment. Since battery replacement is often not possible for reasons of access and cost, such applications need to operate for as long as possible without external power or operator intervention. Silicon Labs' energy-friendly EFM32 32-bit microcontrollers beat existing low-power MCU alternatives — here we'll highlight the top 5 factors that make this possible.

      Low Power Architecture

      Get more done with less energy. EFM32 MCUs feature the ARM Cortex® cores with floating-point unit and Flash memory and are architected for low power using only as little as 21 µA/MHz in active mode. The devices are designed to scale power consumption with capabilities in four energy modes, including a deep sleep mode as low as 1.03 µA, with 16 kB RAM retention and operating real-time clock, as well as a 400 nA hibernation mode with 128 bytes of RAM retention and cryotimer.

      Functional Density

      Reduce the cost of your system with highly integrated microprocessors boasting a rich selection of available high-performance and low-power peripherals, on-chip non-volatile memory, scalable memory footprints, crystal-less 500 ppm sleep timer, and integrated power-management functions.

      Security

      When you want your products to withstand the most challenging cyber-security attacks, you can trust Silicon Labs' technology to safeguard your customers' privacy.

      When considering security in the context of IoT, there are multiple aspects a developer needs to consider.

      Encryption is only as strong as the security offered by the physical device itself. The easiest device attack is a remote attack on software to inject malware which is why a hardware root of trust secure boot is critical. Many IoT devices are easily acquired in the supply chain and allow “Hands-On”, or “Local” attacks which allows attacking the debug port or using physical attacks like side-channel analysis to recover keys during communication encryption.

      Silicon Labs offers a portfolio of device-level security options. To learn more click through to our security pages.

      Best-in-class Tools

      From embedded OS to connectivity software stacks to IDE’s and tools to optimize design. It’s all in one place.

      Industry-leading RTOS with a free kernelIDE support for Keil, IAR and GCCTools to optimize designs with features that enable things like the profiling of energy usage and easy visualization of the internals of any embedded system.

      Our MCU’s are backed by a family of hardware and software engineers and innovators dedicated to solving your toughest embedded design challenges with breakthrough energy-friendly solutions.  Let us help you create the next generation of devices that push the limits of possibility.

      whitepaper

      Manage IoT on an Energy Budget

      Learn how to maximize the energy efficiency of your IoT devices.

      Read More

      Architecture

      Silicon Labs 32-bit ARM® Microcontroller Family

      ARM cores make it easier than ever to port code from one 32-bit microcontroller to another

      Learn More

      Find the Right 32-bit Microcontroller Smart Home Solution

      Smart Home

      Smart Lighting

      Battery Operation

      Learn more about 32-bit MCUs with these training assets

      Curriculum
      Microcontrollers 100 - EFM32: Getting Started Series
      Our EFM32 microcontroller training is a great curriculum for engineers to get started with our energy-friendly EFM32 microcontrollers (MCUs).
      Tech Talk
      Tech Talks - Add a Peripheral to a Project in No Time: Learn about the 32-bit Peripheral Github Library
      June 18, 2020
      Silicon Labs
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      Also of Interest:
      • Microcontrollers
      • How MPUs Can Help You Make Products Safer and...
      • C8051F98x Ultra Low-Power Microcontrollers

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