www.DataSheet4U.com HT66F20/HT66F30/HT66F40/HT66F.
HT66F50 - Enhanced A/D Flash Type MCU 8-Bit MCU
www.DataSheet4U.com HT66F20/HT66F30/HT66F40/HT66F50/HT66F60 HT66FU30/HT66FU40/HT66FU50/HT66FU60 Enhanced A/D Flash Type MCU 8-Bit MCU with EEPROM Tec.