stm32 系列专为要求高性能、低成本、低功耗的嵌入式应用设计的 arm cortex®-m0，m0 ，m3, m4 和 m7 内核（st's product portfolio contains a comprehensive range of microcontrollers, from robust, low-cost 8-bit mcus up to 32-bit arm-based cortex®-m0 and m0 , cortex®-m3, cortex®-m4 flash microcontrollers with a great choice of peripherals. st has also extended this range to include an ultra-low-power mcu platform) [1] 。
按内核架构分为不同产品：
主流产品（stm32f0、stm32f1、stm32f3）、超低功耗产品（stm32l0、stm32l1、stm32l4、stm32l4 ）、高性能产品（stm32f2、stm32f4、stm32f7、stm32h7）