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全新原装 SN74S280NSRG4 SN74S280NSRE4 SN74S280NSR SN74S280N
逻辑芯片SN74S280NSR SN74S280 sn74s280nsr SOP-14
SN74S280NSR/SN74S283N/SN74S32D
SN74S280NSR SN74S283N SN74S32D
SN74S280NSR『PARITY GENERATOR/CHECKER』 现货