Introduction
This reference manual is addressed to application developers. It provides complete information on how to use the STM32F101xx, STM32F102xx, STM32F103xx and STM32F105xx/STM32F107xx microcontroller memory and peripherals. The STM32F101xx, STM32F102xx, STM32F103xx and STM32F105xx/STM32F107xx will be referred to as STM32F10xxx throughout the document, unless otherwise specified. The STM32F10xxx is a family of microcontrollers with different memory sizes, packages and peripherals.
For ordering information, mechanical and electrical device characteristics refer to the low-, medium-, high- and XL-density STM32F101xx and STM32F103xx datasheets, to the low and medium-density STM32F102xx datasheets and to the STM32F105xx/STM32F107xx connectivity line datasheet.
For information on programming, erasing and protection of the internal Flash memory refer to:

• PM0075, the Flash programming manual for low-, medium- high-density and connectivity line STM32F10xxx devices
• PM0068, the Flash programming manual for XL-density STM32F10xxx devices. For information on the Arm® Cortex®-M3 core, refer to the STM32F10xxx Cortex®-M3 programming manual (PM0056).