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SN74LS42474876139N芯片
原装74LS48译码器/驱动器芯片
SN74LS42 47 48 76 83 85 109 112 123 138 139N直插芯片 DIP-16
SN74LS4247487683
SN74LS42芯片DIP-16直插
天猫 SN74LS00N 74LS02/04/08/20/138/48/160/86/192/151国产
SN74LS00N 74LS02/04/08/20/138/48/32/160/86/192/151/47 逻辑IC
