全新SN74LS279ANSR SN74LS273DWR2 SN74LS259BNSR SN74LS258BNSR

贴片直插SN74LS273MELG，SN74LS259MR1G，SN74LS273DWR2，4

贴片直插SN74LS365ADR2G，SN74LS258BML2G，SN74LS273DWR2G，4

贴插74HC151MTCX-74HC157MTCX-74LS273DWR2-SN74F374DWR