These MCUs are fabricated using a high-performance silicon gate CMOS process, embedding the R8C/Tiny Series CPU core, and are packaged in a 32-pin molded-plastic LQFP. It implements sophisticated instructions for a high level of instruction efficiency. With 1 Mbyte of address space, they are capable of executing instructions at high speed. Furthermore, the R8C/27 Group has on chip data flash.
Part of models for your reference:
STM32F100VB STM32F100VD STM32F100R4 STM32F103R4 STM32F102CB STM32F103C8
STM32F100VC STM32F102C4 STM32F102RB STM32F103C6 STM32F103R8
STM3RF100RD TM32F100RE STM32F071 STM32F042 STM32F058 STM32F100V8
STM32F103ZG、STM32F101VG、STM32F107VB、STM32F107RB、STM32F105RB STM32F107VC、STM32F101TB、STM32F107RC、STM32F101VD、STM32F101VE
STM32F103ZE、STM32F103R8、STM32F101RD、STM32F101T8、STM32F103ZF
STM32F101T6、STM32F100R6、STM32F101V8、STM32F101RB、STM32F103V8