The KS22 MCU is based on the ARM(r) Cortex(r)-M4 core with 120MHz MCUs with FPU, offering full-speed USB 2.0 OTG, in addition to other features like USB crystal-less functionality. Devices have 128 KB and 256 KB of flash, 64 KB SRAM as well as LQFP and QFN packages. These devices offer various levels of integration, with a rich suite of analog, communication, timing and control peripherals.