SN74F280BNSN74LS14NSN74LS06NSN74LS08N
正品CD74AC280MCD74AC283ECD74AC285E
CD74HC299MCD74AC280MCD74ACT74MCD74HCT86M
CD74AC540MCD74AC280MCD74AC373E原装
CD74AC280M96G4CD74AC283M96CD74AC283M
CD74AC280M96G4封装CD74AC283M
283CDAC74
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