NTE74HC257,置换半导体 QUAD 2-CHAN MULTPLXR
NTE74HC259,置换半导体 8-BIT ADORSABLE LTCH
NTE74HC273,置换半导体 OCTAL D FF W/CLEAR
NTE74HC299,置换半导体 8-BIT FIFO SHIFT REG
NTE74HC32,置换半导体 QUAD 2-INPUT OR GATE
NTE74HC373,置换半导体 OCTAL D-TYPE LATCH
NTE74HC374,置换半导体 OCTAL D-TYPE F/F
NTE74HC390,置换半导体 DUAL DECADE COUNTER
