Apollo2

The Apollo2 MCU is an ultra-low power, highly integrated microcontroller designed for battery-powered and portable, mobile devices. At the heart of the Apollo2 MCU is Ambiq’s patented Subthreshold Power Optimized Technology (SPOT®) and a powerful Arm® Cortex®-M4 processor with Floating Point Unit.

Apollo2 SoC Datasheet
AmbiqSuite SDK v2.5.1
AmbiqSuite SDK release Notes V2.5.1
Getting Started with AmbiqSuite SDK