型號(hào) / 廠家，封裝，批號(hào)，備注，訂購(gòu)

54LS253J/883 / NSC,原廠原裝,08+07+,7到10天國(guó)際現(xiàn)貨 訂購(gòu) PDF文檔

54LS253J883B / ,,最新批號(hào),原裝現(xiàn)貨 訂購(gòu) PDF文檔

54LS253W / Raytheon Electronics,Datasheet,07+,4-Line Digital Multi 訂購(gòu) PDF文檔

54LS255W / Raytheon Electronics,Datasheet,07+,4-Line Digital Demul 訂購(gòu) PDF文檔

54LS256FM / Various,Datasheet,07+,Dual 4-Bit D-Type La 訂購(gòu) PDF文檔

54LS256FMQB / National Semiconductor,Datasheet,07+,Dual 4-Bit Addressab 訂購(gòu) PDF文檔

54LS257ALMQB / National Semiconductor,Datasheet,07+,TRI-STATE Quad 2-Dat 訂購(gòu) PDF文檔

54LS257FM / Various,Datasheet,07+,2-Line Digital Multi 訂購(gòu) PDF文檔

54LS257W / Raytheon Electronics,Datasheet,07+,2-Line Digital Multi 訂購(gòu) PDF文檔

54LS258A/BEA / Philips Semiconductors,Datasheet,07+,2-Line Digital Multi 訂購(gòu) PDF文檔