We’ve previously seen Ambiq Micro offering Apollo ARM Cortex M4F MCU with Cortex M0+ energy efficiency, and later the upgraded Apollo 2 MCU with even lower power consumption and better performance. The company can achieve such efficiency thanks to low sub-thresold operating voltage in the 0 to 0.5V range. Another startup – Eta Compute – is now offering another low voltage solution with their EtaCore ARM Cortex M3 IP, and other IP blocks operating at low voltage (0.25 to 1.2V). Eta Compute claims a “10x improvement in power efficiency over any alternative”, and battery life of over 10 years on a CR2032 coin cell. Their website does not provide that many details about the core and development tools, but still mentions the following: The only commercially available self-timed technology supporting dynamic voltage scaling (DVS) that is insensitive to process variations, inaccurate device models, and path delay variations Includes M0+ and […]
EtaCore ARM Cortex M3 Core Operates at Low Voltage (0.25V and up) for Higher Power Efficiency
