HT2884B SemiConductor - DIP16 - Holtek

HT46R23-SMD Integrated Circuit - SOP24 - Holtek

HT46F47E Semiconductor - DIP18 - Holtek

HT46F47E HOLTEK - Cost-Effective A/D Flash Type 8-Bit MCU with EEPROM DIP-20

HT8950A Semiconductor - DIP16 - Holtek

AM186EM-25VC Semiconductor - QFP100 - Analog Devices - AMD

HT46R46 HOLTEK INTEGRATED CIRCUIT DIP-18 ''UK COMPANY SINCE1983 NIKKO''

HT46F47E HOLTEK - Cost-Effective A/D Flash Type 8-Bit MCU with EEPROM