型号:HD74HC245P+(+数字逻辑+)
HD74HC251FP
HD74HC251P
HD74HC253P
HD74HC257P
HD74HC273FP
HD74HC273FPVEL
HD74HC273P
HD74HC273RP
HD74HC273RPEL
HD74HC273RPVEL
HD74HC273RPVEL-E-Q
HD74HC273T
HD74HC273TELL
HD74HC273TVELL
HD74HC27P
HD74HC280P
HD74HC292P
HD74HC298P
HD74HC30P
HD74HC32
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