EFM32 Giant Gecko Series 1 MCUs 32-bit ARM® Cortex®-M4

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The EFM32 Giant Gecko Series 1 MCUs are the world’s most energy-friendly microcontrollers, featuring new connectivity interfaces and user interface features.

EFM32GG11 includes a powerful 32-bit ARM® Cortex®-M4 and provides robust security via a unique cryptographic hardware engine supporting AES, ECC, SHA, and True Random Number Generator (TRNG). New features include an SD/MMC/SDIO controller, Octal/Quad-SPI memory controller, 10/100 Ethernet MAC, CAN bus controller, highly robust capacitive sensing, enhanced alpha blending graphics engine, and LESENSE/PCNT enhancements for smart energy meters. These features, combined with ultra-low current active mode and short wake-up time from energy-saving modes, make EFM32GG11 microcontrollers well suited for any battery-powered application, as well as other systems requiring high performance and low-energy consumption.

Example applications:
• Smart energy meters
• Industrial and factory automation
• Home automation and security
• Mid- and high-tier wearables
• IoT devices

Symmetry Electronics is an authorized Silicon Labs distributor.


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ARM Cortex-M4 at 72 MHz
Ultra low energy operation
80 A/MHz in Energy Mode 0 (EM0)
2.1 A EM2 Deep Sleep current (RTCC running with state and RAM retention)
Octal/Quad-SPI memory interface w/ XIP
SD/MMC/SDIO Host Controller
10/100 Ethernet MAC with 802.3az EEE, IEEE1588
Dual CAN 2.0 Bus Controller
Crystal-free low-energy USB
Hardware cryptographic engine supports AES, ECC, SHA, and TRNG
Robust capacitive touch sense
Footprint compatible with select EFM32 packages
5 V tolerant I/O
Package: QFP-100
Temp Range: -40 to +85C

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