Description The Apollo2 MCU Family is an ultra-low power， highly integrated microcontroller designed for battery-powered devices including wearable electronics， activity & fitness monitors， and wireless sensors. By combining ultra-low power sensor conversion electronics with the powerful ARM Cortex-M4 processor with Floating Point Unit， the Apollo2 MCU enables complex sensor processing tasks to be completed with unprecedented battery life. Weeks， months， and years of battery life are achievable while doing complex context detection， gesture recognition， and activity monitoring. The Apollo2 MCU takes full advantage of Ambiq Micro’s patented Subthreshold Power Optimized Technology （SPOT） Platform， setting a new industry benchmark in low power design. The Apollo2 MCU is the 2nd generation controller building upon Ambiq Micro’s Apollo MCU product family. The Apollo2 MCU integrates up to 1 MB of flash memory and 256 KB of RAM to accommodate radio and sensor overhead while still leaving plenty of space for application code. This microcontroller also includes serial master and UART ports for communicating with radios and sensors including accelerometers， gyroscopes， and magnetometers.