Kinetis K64 Data Sheet: 120MHz high-performance Arm<sup>®</sup> Cortex<sup>®</sup>-M4F microcontroller (MCU), Ethernet, up to 1MB Flash / 256KB SRAM (100-144 pin)
Kinetis K64: 120MHz Cortex<sup>®</sup>-M4F 512KB/1MB Flash 100-144pin
Kinetis K64 Data Sheet: 120MHz high-performance Arm<sup>®</sup> Cortex<sup>®</sup>-M4F microcontroller (MCU), Ethernet, up to 1MB Flash / 256KB SRAM (100-144 pin)