| Manufacturer | Part Number | Description |
|---|---|---|
| HT66F2030 | Small Package A/D Flash MCU | |
| HT66F20-1 | Flash MCU | |
| HT66F20 | Enhanced A/D Flash Type MCU 8-Bit MCU | |
Holtek Semiconductor |
HT66F2050 | Low Pin Count A/D Flash MCU |
Holtek Semiconductor |
HT66F2040 | Low Pin Count A/D Flash MCU |