All ProductsHoltekSemiconductorsIntegrated Circuits (ics)Real Time Clocks Manufacturer Line HOLTEK HOLTEK Browse Categories Product Lines Semiconductors Integrated Circuits (ics) Real Time Clocks Available Inventory Manufacturer Parts HT1380 DIP, DIP8(UNSPEC) MFR. Name: Holtek HT1381 SOP, SO8(UNSPEC) MFR. Name: Holtek