新SN74LS244DBRG4 SN74LS682DWRG4 SN75LBC182DRG4 R

新TVP5150AM1ZQCR SN74LS2323DRG4 SN74LS244DWRG4 R

全新SN74LS244DWRG4 SN74LS244DBRG4 SN74LS240NSRG4 SN74LS240DB

全新SN74LS244DWRG SN74LS244DWR2 SN74LS244DW-C SN74LS244DBLE

全新SN74LS245NSRG4 SN74LS245DWRG4 SN74LS245DBRG4 SN74LS244NS