Atmel’s SAM L21 MCU for IoT tops low power benchmark

Atmel | Bits & Pieces


SAM L21 MCUs consume less than 940nA with full 40kB SRAM retention, real-time clock and calendar, and 200nA in the deepest sleep mode.

The Internet of Things (IoT) juggernaut has unleashed a flurry of low-power microcontrollers, and in that array of energy-efficient MCUs, one product has earned the crown jewel of being the lowest-power Cortex M-based solution with power consumption down to 35µA/MHz in active mode and 200nA in sleep mode.

How do we know if Atmel’s SAM L21 microcontroller can actually claim the leadership in ultra-low-power processing movement? The answer lies in the EEMBC ULPBench power benchmark that was introduced last year. It ensures a level playing field in executing the benchmark by having the MCU perform 20,000 clock cycles of active work once a second and sleep the remainder of the second.

 ULPBench shows SAM L21 is lower power than any of its competitor's M0+ class chips ULPBench shows SAM L21 is lower power than any of its competitor’s M0+ class chips.

Atmel has released…

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