Kinetis K 32-bit MCU, ARM Cortex-M4 core, 512KB Flash, 50MHz, MAPBGA 121
Freescale
Freescale - PK12DX256VLF5
Freescale - MK12DX128VMC5
$4.63 - $5.08
Freescale - MK12DX256VMC5
$5.26 - $9.39
Freescale - MK12DN512VLH5
Freescale - MK12DN512VLK5
$5.72
Freescale - MK12DX128VLF5
$7.29