Part number
Core
Max speed
Flash
Ram
I/O
Package
RISC-V
125MHz
224Kb
80Kb
40
QFN68/QFN32
CH643
48MHz
62Kb
20Kb
69
QFN80/LQFP64/LQFP48/QSOP28
CH641
16Kb
2Kb
25
QFN28/QFN20/QFN16