The meanings of R and C in stm32f103RC: R: Indicates that the trademark has been successfully registered and is a registered trademark. C: Indicates a copyright-protected logo

(1)STM32: STM32 represents the 32-bit microcontroller with the ARM Cortex-M3 core.

(2)F: F represents the chip sub-series.

(3)103: 103 represents the enhanced series.

(4)R: R represents the number of pins, which represents 36 pins, C represents 48 pins, R represents 64 pins, V represents 100 pins, and Z represents 144 pins

(5)B: B represents the embedded Flash capacity, where 6 represents 32K bytes Flash, 8 represents 64K bytes Flash, B represents 128K bytes Flash, C represents 256K bytes Flash, and D represents 384K words. Flash, E represents 512K bytes Flash.

(6)T: T represents the package, where H represents the BGA package, T represents the LQFP package, and U represents the VFQFPN package.

(7)The last number is the temperature range.