Freescale Semiconductor, Inc. Data Sheet: Technica.
MKL15Z128VLK4 - 48MHz Cortex-M0+ Based Microcontroller
Freescale Semiconductor, Inc. Data Sheet: Technical Data Document Number: KL15P80M48SF0 Rev 5 08/2014 Kinetis KL15 Sub-Family 48 MHz Cortex-M0+ Base.