NTE74LS165,置换半导体 8-BIT PAR-SER CNVRTR
NTE74LS166,置换半导体 8-BIT PAR-SER RGISTR
NTE74LS168A,置换半导体 BCD UP/DWN CNTR DP16
NTE74LS169A,置换半导体 SYNC MOD-16 COUNTER
NTE74LS181,置换半导体 FUNC GENERATOR DIP24
NTE74LS191,置换半导体 BIN SYNC UP/DN CNTR
NTE74LS192,
NTE74LS193,置换半导体 SYNC BIN CNTR DIP-16
