FAIRCHILD SEMICONDUCTOR - 709HC FAIRCHILD SEMICONDUCTOR - 74AC191SCX FAIRCHILD SEMICONDUCTOR - 74AC273SCX FAIRCHILD SEMICONDUCTOR - 74ACT245PC FAIRCHILD SEMICONDUCTOR - 74ACT74PC FAIRCHILD SEMICONDUCTOR - 74F139SC_ FAIRCHILD SEMICONDUCTOR - 74LCX16244MTD_ FAIRCHILD SEMICONDUCTOR - KSP6521 FAIRCHILD SEMICONDUCTOR - MM74HC174N FAIRCHILD SEMICONDUCTOR - MM74HC7266N