STM32F437xx STM32F439xx 32b Arm® Cortex®-M4 MCU.
STMicroelectronics
STM32F439NG - ARM Cortex-M4 32-bit MCU+FPU
STM32F437xx STM32F439xx 32b Arm® Cortex®-M4 MCU+FPU, 225DMIPS, up to 2MB Flash/256+4KB RAM, crypto, USB OTG HS/FS, Ethernet, 17 TIMs, 3 ADCs, 20 com..