8-bit mcu
*cm8a21
8-bit otp mcu，0.5k rom，16 i/o，dip/sop-8 14 18 20 24
cm8p53
8-bit otp mcu，可相容78p153 （12c508/12c509）
cm8p56
8-bit otp mcu，可相容78p156
cm8p57
8-bit otp mcu，可相容78p157
cm8p59
8-bit otp mcu，可相容78p447
*cm8f19
8-bit otp mcu，with full-speed usb controller
*cm8b11
8-bit otp mcu，with battery charger controller，全兼容 ht46r47