Part number
Core
Max speed
Flash
Ram
I/O
Package
MM32F103K8U6
M3
96MHz
64Kb
20Kb
25
QFN32
MM32F103K8T6
23
LQFP32
MM32F103C8T6
37
LQFP48
MM32F103R8T6
51
LQFP64
MM32F103KBU6
128Kb
TQFN32
MM32F103KBT6
MM32F103CBT6