Kinetis KE1xF with up to 512 KB Flash
Up to 168 MHz ARM® Cortex®-M4 Based Microcontroller

The KE1xF microcontroller is built on the ARM® Cortex®-M4 processor with stronger performance and higher memory densities in multiple packages. This device offers up to 168 MHz performance with integrated single-precision floating point unit (FPU) and digital signal processor (DSP). Embedded flash memory sizes range from 256 KB to 512 KB.