STM32F101XB PDF File ( Datasheet )

STM32F101x6 STM32F101x8 STM32F101xB Access line, advanced ARM-based 32-bit MCU with Flash memory, six 16-bit timers, ADC and seven communication interfaces Preliminary Data Features - Core: ARM 32-bit Cortex™-M3 CPU 36 MHz, 45 DMIPS with 1.25 DMIPS, MH- Single-cycle multiplication and hardware division Nested interrupt controller with 43 maskable interrupt channels Interrupt processing (down to 6 CPU cycles) with tail chaining Memories 32-to-128 Kbytes of Flash memory 6-to-16 Kbytes