ARM Cortex-M0+ 64KBbyte Flash Controller
ST Micro
http://www.st.com/en/microcontrollers/stm32l052r8.html
http://www.st.com/resource/en/datasheet/stm32l052r8.pdf
Schematic Layout Generator Circuit Tree App
--add_component[u1][STM32L052R8H6]
--add_block[led]
--add_block[uart_to_usb]