贴片SN74LS640MR1SN74LS641DWG645

￥2.9

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芯片二极管三极管电容电阻集成电路

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贴片直插SN74LS645-1N SN74LS640MR1 SN74LS641DWG 4

SN74LS640NSN74LS641N原装641

￥3

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永恒电子元器件

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SN74LS640N SN74LS641-1DWG4 SN74LS641-1N SN74LS641N原装