Below you will find a part numbering breakdown from the STM32F1 series of Microcontrollers from STMicroelectronics.
One item to note is that on some of the parts such as STM32F103RCY6CTR there is an additional letter between the temperature range and the options section. This letter is calling out a die revision code.
Additional STM32F1 Part Numbers
STM32F100C8T6B STM32F101T6U6A STM32F100RBT6B STM32F103T6U6A STM32F100RCT6B STM32F103T8U6 STM32F101CBT6 STM32F100VCT6B STM32F103C8T7 STM32F103CBT6 STM32F103R8T6 STM32F103RBT6 STM32F105RBT6 STM32F103RCT6 STM32F105RCT6 STM32F103VCT6 STM32F101RET6 STM32F105VCT6 STM32F103RCT7 STM32F107RCT6 STM32F103RDT6 STM32F103RET6 STM32F107VCT6 STM32F103VET6 STM32F103ZET6 STM32F103ZEH6 STM32F103ZFT6 STM32F103VGT6 STM32F103ZGH6 STM32F103ZGT6 STM32F100C4T6B STM32F100R4T6B STM32F100R8T6B STM32F103C6T6A STM32F103R6T6A STM32F103C6T7A STM32F100VDT6B STM32F103T8U7 STM32F103R8T7 STM32F103RBH6 STM32F100VET6B STM32F107RBT6 STM32F103VDT6 STM32F103ZCT6 STM32F105VCT7 STM32F103VET7 STM32F103ZET7 STM32F100R6T6B STM32F101C6T6A STM32F102C6T6A STM32F103T4U6A STM32F103C4T6A STM32F100VBT6B STM32F102C8T6 STM32F101T8U6 STM32F102CBT6 STM32F103V8T6 STM32F105VBT6 STM32F101VDT6 STM32F103RBT7 STM32F103VFT6 STM32F101RGT6 STM32F100V8T6B STM32F100RBH6B STM32F101R6T6A STM32F102R8T6 STM32F101RCT6 STM32F103VBH6 STM32F101RDT6 STM32F103VBT7 STM32F101VET6 STM32F103ZCH6 STM32F101VFT6 STM32F103ZEH7 STM32F101ZGT6 STM32F101T4U6A STM32F102R4T6A STM32F101R4T6A STM32F102R6T6A STM32F103R4T6A STM32F101V8T6 STM32F101RBT6 STM32F101VCT6 STM32F100ZET6B STM32F103RDY6TR STM32F103RDY6TR STM32F103RDY6TR STM32F103ZDH6 STM32F103ZDT6 STM32F103VEH7 STM32F103RFT6 STM32F103RET7 STM32F100CBT6B STM32F107VBT6 STM32F105V8T6 STM32F101RFT6 STM32F103R6T7A STM32F101ZCT6 STM32F103VDH6 STM32F100C6T6B STM32F103C8T6 STM32F105R8T6 STM32F103TBU6 STM32F103CBT7 STM32F103VBT6 STM32F107VCH6 STM32F103RGT6 STM32F101C8T6 STM32F102RBT6 STM32F105RCT7 STM32F100R8H6B STM32F101C8U6 STM32F101R8T6 STM32F100C4T6BTR STM32F100C6T6BTR STM32F100R4H6B STM32F100C4T7B STM32F100C8T6BTR STM32F100R4T6BTR STM32F100R6H6B STM32F100C6T7B STM32F100CBT6BTR STM32F100C8T7BTR STM32F100R6T6BTR STM32F100C8T7B STM32F102C4T6ATR STM32F100RBH6BTR STM32F100R8T6BTR STM32F102C4T6A STM32F101C4T6A STM32F101C6T6ATR STM32F102C6T6ATR STM32F101T6U6ATR STM32F101R6T6ATR STM32F100R8T7BTR STM32F103R6T6ATR STM32F100CBT7BTR STM32F100RBT6BTR STM32F103R8H6TR STM32F100V8T6BTR STM32F100CBT7B STM32F101CBU6TR STM32F101TBU6TR STM32F101C8T6TR STM32F101T8U6TR STM32F102C8T6TR STM32F101C8U6TR STM32F100VBT6BTR STM32F103R4H6A STM32F103C6T6ATR STM32F100R8T7B STM32F103C6U6A STM32F103R6H6A STM32F101R8T6TR STM32F103CBU6TR STM32F101CBU6 STM32F105R8T6TR STM32F103T6U7A STM32F103C6T7ATR STM32F100RCT6TR STM32F100RCT6BTR STM32F101CBT6TR STM32F103C8T6TR STM32F102CBT6TR STM32F101TBU6 STM32F103T8U6TR STM32F100V8T7B STM32F101RBH6 STM32F102RBT6TR STM32F101V8T6TR STM32F100VCT6BTR STM32F103RBH6TR STM32F103C8T7TR STM32F103R8H6 STM32F101RBT6TR STM32F103T8U7TR STM32F103R8T6TR STM32F103CBT6TR STM32F100VDT6BTR STM32F100RDT6BTR STM32F100RCT6 STM32F101VBT6TR STM32F100VBT7B STM32F103CBU6 STM32F103R8H7 STM32F103V8H6 STM32F103V8T6TR STM32F107RBT6TR STM32F103VBI6 STM32F100RCT7B STM32F100VCT6 STM32F103RBT6TR STM32F101RCT6TR STM32F100VDT7B STM32F100VET6BTR STM32F103CBT7TR STM32F103TBU7 STM32F105RBT6TR STM32F100RET6BTR STM32F100RDT6B STM32F101VBT6 STM32F103R8T7TR STM32F101VCT6TR STM32F103RBH7 STM32F103VBT6TR STM32F103RCT6TR STM32F100ZCT6B STM32F100VET6 STM32F105VBH6 STM32F100VDT6 STM32F100RET6B STM32F101RDT6TR STM32F105RCT6TR STM32F101RFT6TR STM32F103RCY6CTR STM32F103RCY6TR STM32F100VET7B STM32F103VCH6 STM32F103VCT6TR STM32F101VET6TR STM32F103RBT7TR STM32F101VDT6TR STM32F105VCT6W STM32F103VBH7 STM32F103VBT7TR STM32F100ZDT6B STM32F105VCT6TR STM32F107RCT6TR STM32F103RDT6TR STM32F103VEH6TR STM32F103ZDH6TR STM32F105RCT6W STM32F103RET6TR STM32F103VDH6TR STM32F103VDT6TR STM32F107VCT6TR STM32F103VET6TR STM32F103REY6TR STM32F107VCT7 STM32F103RGT6TR STM32F101VFT6TR STM32F105VCT6V STM32F103ZCT6TR STM32F105RCT6V STM32F103RFT6TR STM32F103VGT6TR STM32F101R6T6 STM32F103VET7TR STM32F103VFT6TR STM32F100ZET6BTR STM32F101RGT6TR STM32F107RCT7 STM32F101ZFT6 STM32F103ZGH6TR STM32F103ZEH6TR STM32F103VDT7 STM32F101ZDT6 STM32F103ZGH7 STM32F101VGT6 STM32F103ZFH6 STM32F103ZFH6TR STM32F103ZET6TR STM32F103ZGH6J STM32F103VGT6J STM32F103ZCT7 STM32F100ZET7B STM32F103ZGH6JTR STM32F103VGT7TR STM32F103RGT7 STM32F103ZGT6J STM32F103VGT7 STM32F103ZGT6TR STM32F103VFT7 STM32F103VEH6 STM32F101ZET6 STM32F101C6T6 STM32F103C6T6 STM32F103R6T6 STM32F101T6U6 STM32F103T6U6