STM8S103F2P6TR STM8S103F2T6 STM8S103F2U6 STM8S103F2U6TR STM8S103F2U6TR 8位MCU STM8S103F3 STM8S103F3M3 STM8S103F3M6 STM8S103F3M6 8位MCU STM8S103F3M6TR