32-bit ARM Cortex M4 MCU, 512KB Flash, 80-Pin LQFP
32-bit ARM Cortex M4 MCU, 512KB Flash, 80-Pin LQFP, 50MHz
32-bit ARM Cortex M4 MCU, 512KB Flash, 64-Pin LQFP
32-bit ARM Cortex-M4 MCU, 512KB Flash, 50MHz, USB, 80-Pin QFP
ARM Microcontrollers - MCU Low-Power Cortex-M4 PRE-QUALIFIED SAMPL