长期现货,特价VIPER12A-SMD-ST\VIPER12A-ST\VIPER12-SMD-ST\VIPER12-ST\VIPER22\VIPER22A-DIP\VIPER53\VIPER53A74HC138
74HC139
74HC164
74HC164
74HC244
74HC273
74HC373(宽)
74HC374(窄)
74HC377
74HC4051
74HC4060
74HC541
74HC573
74HC574
74HC595
74LS08
74LS156
74LS164
74LS32
75176
75LBC184
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