Kinetis E Series Microcontrollers The Kinetis E series is the most scalable portfolio of ARM Cortex-M0+ microcontrollers in the industry. Designed to be highly robust in electrically noisy environments and high-reliability applications (+5V power supply), the Kinetis E series families offer a broad range of memory, peripheral and package options. They share common peripherals and pincounts allowing developers to migrate easily within a microcontroller family or between microcontroller families to take advantage of more memory or feature integration.