Up to 32 KB of Flash
Up to 2 KB of SRAM
Supply voltage range of 1.71 to 5.5 V
Low power consumption at 1.16 mA for active and 0.1 μA in deep sleep
Full-speed USB in selected devices
Hardware-based I2C and SPI
CapSense successive approximation with CSA and CapSense sigma delta (CSD) capacitive sensing