Devices NuMicro M0 Family M0A21 M0A21 Nuvoton Devices 8 M0A21EB1AC M0A21 Cortex-M0 M0A21EC1AC M0A21 Cortex-M0 M0A21OB1AC M0A21 Cortex-M0 M0A21OC1AC M0A21 Cortex-M0 M0A23EC1AC M0A21 Cortex-M0 M0A23EC1ACU M0A21 Cortex-M0 M0A23OC1AC M0A21 Cortex-M0 M0A23OC1ACU M0A21 Cortex-M0