Devices HT32F66242 Series HT32F66242 HT32F66242 Holtek Devices 4 HT32F66242 HT32F66242 Cortex-M0+ HT32F66242_24SSOP HT32F66242 Cortex-M0+ HT32F66242_32QFN HT32F66242 Cortex-M0+ HT32F66242_48LQFP HT32F66242 Cortex-M0+