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型號 / 廠家，封裝，批號，備注，訂購
74HC221AN / FSC,,08/09+,010-66001623 訂購 PDF文檔
74HC221B / ,,最新批號,原裝現(xiàn)貨 訂購 PDF文檔
74HC221D / PH,DIP-28,08/09+,全新原裝深圳庫存 訂購 PDF文檔
74HC221D.652 / PH,,08/09+,原裝特價 訂購 PDF文檔
74HC221D-653 / PHILIPS,,08/09+,010-62106431 訂購 PDF文檔
74HC221DB,118 / ,,最新批號, 訂購 PDF文檔
74HC221N / WINBOND,TO-92,08/09+,全新原裝深圳庫存 訂購 PDF文檔
74HC221N,652 / ,,最新批號, 訂購 PDF文檔