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新SN74LS323N SN74LS54NS SN74LS151N SN74LS596N R
贴片直插SN74LS673N SN74LS641M SN74LS54NS SN74LS612N 4
贴片直插SN74LS54NS SN74LS377N SN74LS181N SN74LS244J 5
贴片直插SN74LV08DB SN74LS86AN SN74LS54NS SN74LS688N 4
新SN74HC00NS SN74LS136N SN74F109DR SN54HC574J R
新CD54HC297F SN74F521NS TLV5636IDR SN74LS613N R