全新SN74LS243NS SN74LS243DR SN74LS242DR SN74LS241DW SN74LS24

IC 芯片 SN74LS242DR SOP14 74LS242D 集成电路 现货供应

贴片直插SN74LS32DR，SN74LS273N，SN74LS242N，SN74LS245N，4

贴片直插SN74LVC04A SN74LS32DR SN74LS157N SN74LS242N 5

贴片直插SN75115NSR SN74LS242N SN74HC05DR SN74HC134N 5