型号:HD74HC165T
HD74HC166P
HD74HC174
HD74HC174FP
HD74HC174FPEL
HD74HC174FP-EL
HD74HC174FPEL-E-Q
HD74HC174FPER
HD74HC174FPTL
HD74HC174P
HD74HC174RPEL
HD74HC174RPELSOP3
HD74HC175
HD74HC175FP
HD74HC175FPER
HD74HC175P
HD74HC180P
HD74HC190P
HD74HC191FP
HD74HC191P
HD74HC193FP
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