Go from concept to design in less time with our 32-bit and 8-bit MCUs

Rapidly evaluate and prototype a wide variety of industrial and consumer devices using our low-power, fast speed microcontrollers, development kits, specialized example code (like energy monitoring, USB, LCD, touch sensors), and advanced debugging capabilities. 

Our 32-bit MCUs enable high functioning, low-power systems by leveraging an EFM32™ ARM® Cortex®. While our EFM8™ 8051-based MCUs deliver the industry’s fastest speeds and lowest power. 

     32-bit EFM32 Cortex M and Precision32 Microcontrollers    8-bit 8051-based EFM8 and C8051 Microcontrollers
Core Cortex-M0+, -M3, and -M4 Optimized 8051 (70% of the instructions executed in 1 cycle)
Core Frequency 72 MHz 72 MHz
Active Current 37 uA/MHz 150 uA/MHz
Sleep Current 900 nA with RTCC and RAM 300 nA with RTC
Wake Times 3 us 2 us
Analog 2 x 12-bit 1 Msps 14-bit 900 ksps
GPIOs 15 - 144 13 - 40
Flash 4 - 2048 kB 2 - 64 kB
RAM 2 - 512 kB 0.5 - 4 kB
Featured Product Tiny Gecko Series 1 EFM8 Busy Bee
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