The SAM L21 combines ultra-low power with Flash and SRAM that are large enough to run both the application and wireless stacks—three features that are cornerstones of most IoT applications. Sampling now, the SAM L21 comes complete with a development platform including an Xplained PRO kit, code libraries and Atmel Studio support.

The new family consumes just one-third the power of competing solutions on the market today and integrates the company’s proprietary ultra-low power picoPower technology. While running the EEMBC ULPBench, the industry marker for low power, the SAM L21 achieves a staggering score of 185, the highest publicly-recorded score for any Cortex-M based processor or MCU in the world—and significantly higher than the 167 and 123 scores announced by other vendors. Atmel’s SAM L21 family consumes less than 940nA with full 40kB SRAM retention, real-time clock and calendar and 200nA in the deepest sleep mode.

Atmel’s ultra-low power SAM L21 family is ideal for a number of applications including the Internet of Things (IoT), consumer, industrial, medical and other battery-powered devices.

Features:

－ Best-in-class active mode current consumption.

－ SRAM back biasing to reduce leakage in sleep modes.

－ Sleep modes that do not only gate away the clock signal to stop switching consumption, but also remove power from sub domains to fully eliminate leakage.

－ SAM L21 peripherals that support Sleepwalking—a technology that enables peripherals to request a clock when needed to wake-up from sleep modes and perform tasks without having to power up the CPU Flash and other support systems.

－ Atmel’s proprietary Event System that allows peripherals to work together to solve complex tasks using minimal gates and also the lowest possible power.

－ Ultra-low power capacitive touch sensing peripheral that can run in all operating modes and supports wake-up on touch.