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全新74AC20PC74AC193D74AC191P
新MC14001B PD600113 74AC191P MSM6389B SC407BXB R
DG191BP DG191AP TOP227Y UC3902N IAA110P 74AC161 UC3907N 9
贴片直插HD64E7040A，HD74AC166P，HD74HC191P，HD74HC244P
HD46821P 74AC191P SN74AS20N SN74LS14N
