STM32F411VET6 32bit ARM Cortex M4 MCU,512KB Flash 3.3V in a LQFP100 surface mount package by STMicroelectronics. Download STMicroelectronics STM32F411VET6 datasheet: VET6 : V=100 pin E=512K of Flash Memory T=LQFP (14 x 14mm) package 6= Temp range of -40 ~ 85ºC Status: NOS (New Old Stock) in sealed trays. RoHS Compliant: YES