贴插SN74ACT244DBLE-HD74LV138ATELL-M74VCX16245TTR-B

贴插MC14093BFELG 74ACT244DBLE MC14094BFELG

新SN74ACT373DBLE SN74AHC244RGYR SN74AHCT540PWR R

新MC74VHC244DWR2 SN74ACT245DBLE MY24CW02SC-2.7 R