Part number

Core

Max speed

Flash

Ram

I/O

Package

RISC-V

125MHz

224Kb

80Kb

40

QFN68/QFN32

CH643

RISC-V

48MHz

62Kb

20Kb

69

QFN80/LQFP64/LQFP48/QSOP28

CH641

RISC-V

48MHz

16Kb

2Kb

25

QFN28/QFN20/QFN16