stm32 datasheet
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STM32F103x8 STM32F103xB Mediumdensity performance line ARMbased 32bit MCU with 64 or 128 KB Flash USB CAN 7 timers 2 ADCs 9 com interfaces Datasheet production data Features ARM 32bit CortexM3 CPU Core 72 MHz maximum frequency 125 DMIPSMHz Dhrystone 21 performance at 0 wait state memory access Singlecycle multiplication and hardware division Memories 64 or 128 Kbytes of Flash memory 20 Kbytes of SRAM Clock reset and supply management 20 to 36 V application supply and IOs POR PDR ......
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